annotate tests/test-pullbundle.t @ 4133:1293625d274d

pullbundle: add an output about the time spent slicing the set

This will be useful to monitor overall performance.

  $ . "$TESTDIR/testlib/pythonpath.sh"

  $ cat << EOF >> $HGRCPATH
  > [extensions]
  > # evolve is providing the stable range code
  > evolve=
  > pullbundle=
  > [experimental]
  > obshashrange.warm-cache=yes
  > EOF

basic setup

  $ hg init server
  $ hg -R server debugbuilddag '.+898:branchpoint+352:mergepoint+267<branchpoint+145/mergepoint+467'
  $ hg init client
  $ hg init client2
  $ hg init client3
  $ hg init client4

simple initial pull
-------------------

  $ hg -R server log -G -T '{rev}:{node}\n' -r '0+1234+(::1234 and (merge() or branchpoint()))'
  o  1234:f864bc82f6a2f2ecb49b83722e0895f9d657b0dd
  :
  o  898:1388f909cd2b0685efd4e2ce076d198bce20922c
  :
  o  0:1ea73414a91b0920940797d8fc6a11e447f8ea1e
  

  $ hg -R client pull server -r 1234 --debug --config devel.bundle2.debug=yes | grep -v 'add changeset'
  pulling from server
  query 1; heads
  pullbundle-cache: "missing" set sliced into 6 subranges in *.* seconds (glob)
  1024 changesets found
  128 changesets found
  64 changesets found
  16 changesets found
  2 changesets found
  1 changesets found
  listing keys for "bookmarks"
  bundle2-output-bundle: "HG20", 9 parts total
  bundle2-output: start emission of HG20 stream
  bundle2-output: bundle parameter: 
  bundle2-output: start of parts
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 0: "CHANGEGROUP"
  bundle2-output: header chunk size: 44
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 22368
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 1: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 23564
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 2: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 11788
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 3: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 2956
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 4: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 380
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 5: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 196
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "listkeys"
  bundle2-output-part: "listkeys" (params: 1 mandatory) empty payload
  bundle2-output: part 6: "LISTKEYS"
  bundle2-output: header chunk size: 35
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "phase-heads"
  bundle2-output-part: "phase-heads" 24 bytes payload
  bundle2-output: part 7: "PHASE-HEADS"
  bundle2-output: header chunk size: 18
  bundle2-output: payload chunk size: 24
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "cache:rev-branch-cache"
  bundle2-output-part: "cache:rev-branch-cache" (advisory) streamed payload
  bundle2-output: part 8: "cache:rev-branch-cache"
  bundle2-output: header chunk size: 29
  bundle2-output: payload chunk size: 24719
  bundle2-output: closing payload chunk
  bundle2-output: end of bundle
  bundle2-input: start processing of HG20 stream
  bundle2-input: reading bundle2 stream parameters
  bundle2-input-bundle: with-transaction
  bundle2-input: start extraction of bundle2 parts
  bundle2-input: part header size: 44
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "0"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 22368
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 1024 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 186208
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "1"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 23564
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 128 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 23564
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "2"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 11788
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 11788
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "3"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 2956
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 16 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 2956
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "4"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 380
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 2 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 380
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "5"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 196
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 196
  bundle2-input: part header size: 35
  bundle2-input: part type: "LISTKEYS"
  bundle2-input: part id: "6"
  bundle2-input: part parameters: 1
  bundle2-input: found a handler for part listkeys
  bundle2-input-part: "listkeys" (params: 1 mandatory) supported
  bundle2-input: payload chunk size: 0
  bundle2-input: part header size: 18
  bundle2-input: part type: "PHASE-HEADS"
  bundle2-input: part id: "7"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part phase-heads
  bundle2-input-part: "phase-heads" supported
  bundle2-input: payload chunk size: 24
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 24
  bundle2-input: part header size: 29
  bundle2-input: part type: "cache:rev-branch-cache"
  bundle2-input: part id: "8"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part cache:rev-branch-cache
  bundle2-input-part: "cache:rev-branch-cache" (advisory) supported
  bundle2-input: payload chunk size: 24719
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 24719
  bundle2-input: part header size: 0
  bundle2-input: end of bundle2 stream
  bundle2-input-bundle: 8 parts total
  checking for updated bookmarks
  updating the branch cache
  new changesets 1ea73414a91b:f864bc82f6a2
  (run 'hg update' to get a working copy)

  $ touch oldbundles
  $ ls -1 server/.hg/cache/pullbundles > newbundles
  $ diff -u oldbundles newbundles
  --- oldbundles	* (glob)
  +++ newbundles	* (glob)
  @@ -0,0 +1,6 @@
  +02-467b6e370e816747e27de0d0b9237f4090a33656-0000001152skip-0000000064size.hg
  +02-540f762640ee62ca597ece26af725e6357e82805-0000000000skip-0000001024size.hg
  +02-63ded94ceab180ac2fa13e1f0beeb4d2265998a3-0000001232skip-0000000002size.hg
  +02-7f3a79522d6e904d52aea07c71e6cb612667e8f4-0000001216skip-0000000016size.hg
  +02-ee2deecf044fa5583f66188c9177b0f13332adc2-0000001024skip-0000000128size.hg
  +02-f864bc82f6a2f2ecb49b83722e0895f9d657b0dd-0000001234skip-0000000001size.hg
  [1]

pull the other missing entries (multiple heads pulled)
------------------------------------------------------

  $ hg -R server log -G -T '{rev}:{node}\n' -r '1234+head()+(only(head(), 1234) and (merge() or branchpoint()))'
  o  2130:0f376356904fc8c1c6ceaac27990f2fd79b1f8c1
  :
  o    1663:1710092b3ab17a6d2ecad664580991a608537749
  |\
  | ~
  | o  1517:1dded5aafa0f8d548f6357cc2f8882dcc4489fbf
  |/
  o  1250:d83212ecaa436c80d6113cf915ba35e2db787e79
  :
  o  1234:f864bc82f6a2f2ecb49b83722e0895f9d657b0dd
  |
  ~
  $ hg -R client pull server --debug --config devel.bundle2.debug=yes | grep -v 'add changeset'
  pulling from server
  query 1; heads
  searching for changes
  all local heads known remotely
  pullbundle-cache: "missing" set sliced into 16 subranges in *.* seconds (glob)
  16 changesets found
  29 changesets found
  256 changesets found
  256 changesets found
  64 changesets found
  8 changesets found
  1 changesets found
  4 changesets found
  8 changesets found
  16 changesets found
  128 changesets found
  64 changesets found
  32 changesets found
  8 changesets found
  4 changesets found
  2 changesets found
  listing keys for "bookmarks"
  bundle2-output-bundle: "HG20", 19 parts total
  bundle2-output: start emission of HG20 stream
  bundle2-output: bundle parameter: 
  bundle2-output: start of parts
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 0: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 2956
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 1: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 5348
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 2: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 14348
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 3: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 14348
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 4: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 11788
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 5: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 1484
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 6: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 196
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 7: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 748
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 8: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 1484
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 9: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 2956
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 10: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 23564
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 11: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 11788
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 12: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 5900
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 13: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 1484
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 14: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 748
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 15: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 380
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "listkeys"
  bundle2-output-part: "listkeys" (params: 1 mandatory) empty payload
  bundle2-output: part 16: "LISTKEYS"
  bundle2-output: header chunk size: 35
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "phase-heads"
  bundle2-output-part: "phase-heads" 48 bytes payload
  bundle2-output: part 17: "PHASE-HEADS"
  bundle2-output: header chunk size: 18
  bundle2-output: payload chunk size: 48
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "cache:rev-branch-cache"
  bundle2-output-part: "cache:rev-branch-cache" (advisory) streamed payload
  bundle2-output: part 18: "cache:rev-branch-cache"
  bundle2-output: header chunk size: 29
  bundle2-output: payload chunk size: 17939
  bundle2-output: closing payload chunk
  bundle2-output: end of bundle
  bundle2-input: start processing of HG20 stream
  bundle2-input: reading bundle2 stream parameters
  bundle2-input-bundle: with-transaction
  bundle2-input: start extraction of bundle2 parts
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "0"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 2956
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 16 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 2956
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "1"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 5348
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 29 changesets with 0 changes to 0 files (+1 heads)
  bundle2-input-part: total payload size 5348
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "2"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 14348
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 256 changesets with 0 changes to 0 files (-1 heads)
  bundle2-input-part: total payload size 47116
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "3"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 14348
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 256 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 47116
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "4"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 11788
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 11788
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "5"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 1484
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 1484
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "6"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 196
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files (+1 heads)
  bundle2-input-part: total payload size 196
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "7"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 748
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 4 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 748
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "8"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 1484
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 1484
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "9"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 2956
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 16 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 2956
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "10"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 23564
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 128 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 23564
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "11"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 11788
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 11788
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "12"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 5900
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 32 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 5900
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "13"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 1484
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 1484
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "14"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 748
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 4 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 748
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "15"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 380
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 2 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 380
  bundle2-input: part header size: 35
  bundle2-input: part type: "LISTKEYS"
  bundle2-input: part id: "16"
  bundle2-input: part parameters: 1
  bundle2-input: found a handler for part listkeys
  bundle2-input-part: "listkeys" (params: 1 mandatory) supported
  bundle2-input: payload chunk size: 0
  bundle2-input: part header size: 18
  bundle2-input: part type: "PHASE-HEADS"
  bundle2-input: part id: "17"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part phase-heads
  bundle2-input-part: "phase-heads" supported
  bundle2-input: payload chunk size: 48
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 48
  bundle2-input: part header size: 29
  bundle2-input: part type: "cache:rev-branch-cache"
  bundle2-input: part id: "18"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part cache:rev-branch-cache
  bundle2-input-part: "cache:rev-branch-cache" (advisory) supported
  bundle2-input: payload chunk size: 17939
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 17939
  bundle2-input: part header size: 0
  bundle2-input: end of bundle2 stream
  bundle2-input-bundle: 18 parts total
  checking for updated bookmarks
  updating the branch cache
  new changesets 17185c1c22f1:1dded5aafa0f
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ mv newbundles oldbundles
  $ ls -1 server/.hg/cache/pullbundles > newbundles
  $ diff -u oldbundles newbundles
  --- oldbundles	* (glob)
  +++ newbundles	* (glob)
  @@ -1,6 +1,22 @@
  +02-0f376356904fc8c1c6ceaac27990f2fd79b1f8c1-0000001856skip-0000000008size.hg
  +02-1dded5aafa0f8d548f6357cc2f8882dcc4489fbf-0000001516skip-0000000002size.hg
  +02-2dc4f1ab9029719714b8e0dde8e3725a5bb28472-0000001408skip-0000000064size.hg
  +02-2f0e261a08964bc1c607c0eda4978364c22a9b94-0000001504skip-0000000008size.hg
   02-467b6e370e816747e27de0d0b9237f4090a33656-0000001152skip-0000000064size.hg
  +02-4a6d0f7d07d060b026d9fc690cd89cd26af96e42-0000001264skip-0000000016size.hg
   02-540f762640ee62ca597ece26af725e6357e82805-0000000000skip-0000001024size.hg
  +02-5eaa75df73c454c1afff722301a4c73e897de94d-0000001256skip-0000000008size.hg
   02-63ded94ceab180ac2fa13e1f0beeb4d2265998a3-0000001232skip-0000000002size.hg
   02-7f3a79522d6e904d52aea07c71e6cb612667e8f4-0000001216skip-0000000016size.hg
  +02-b2d350c94c26edbb783aaa21fc24f1fc65c30e74-0000001536skip-0000000256size.hg
  +02-bbd293bd171fd5b711d428db46940a72eca7a40f-0000001280skip-0000000128size.hg
  +02-ca970a853ea24846035ccb324cc8de49ef768748-0000001252skip-0000000004size.hg
  +02-d1807e3513890ac71c2e8d10e9dc9a5b58b15d4b-0000001251skip-0000000001size.hg
  +02-d83212ecaa436c80d6113cf915ba35e2db787e79-0000001235skip-0000000016size.hg
  +02-da87a81c5310760f414a933e6550b7e8e60cf241-0000001792skip-0000000064size.hg
  +02-dba2fddbf3c28198659046674a512afd616a1519-0000001472skip-0000000032size.hg
  +02-e469a7aa5cce57653b6b02ff46c80b2d94d62629-0000000899skip-0000000029size.hg
  +02-e74670ea99533967c5d90da3ddbc0318cc1fd502-0000001280skip-0000000256size.hg
   02-ee2deecf044fa5583f66188c9177b0f13332adc2-0000001024skip-0000000128size.hg
   02-f864bc82f6a2f2ecb49b83722e0895f9d657b0dd-0000001234skip-0000000001size.hg
  +02-fb6c210a224903e81e5a8d2ee099cb0c9526ba8c-0000001512skip-0000000004size.hg
  [1]

Same Pullin with a different client
-----------------------------------
  $ hg -R server log -G -T '{rev}:{node}\n' -r '0+1234+(::1234 and (merge() or branchpoint()))'
  o  1234:f864bc82f6a2f2ecb49b83722e0895f9d657b0dd
  :
  o  898:1388f909cd2b0685efd4e2ce076d198bce20922c
  :
  o  0:1ea73414a91b0920940797d8fc6a11e447f8ea1e
  

  $ hg -R client2 pull server -r 1234 --debug --config devel.bundle2.debug=yes --traceback| grep -v 'add changeset'
  pulling from server
  query 1; heads
  pullbundle-cache: "missing" set sliced into 6 subranges in *.* seconds (glob)
  1024 changesets found in caches
  128 changesets found in caches
  64 changesets found in caches
  16 changesets found in caches
  2 changesets found in caches
  1 changesets found in caches
  listing keys for "bookmarks"
  bundle2-output-bundle: "HG20", 9 parts total
  bundle2-output: start emission of HG20 stream
  bundle2-output: bundle parameter: 
  bundle2-output: start of parts
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 0: "CHANGEGROUP"
  bundle2-output: header chunk size: 44
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 22368
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 1: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 23564
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 2: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 11788
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 3: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 2956
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 4: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 380
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 5: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 196
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "listkeys"
  bundle2-output-part: "listkeys" (params: 1 mandatory) empty payload
  bundle2-output: part 6: "LISTKEYS"
  bundle2-output: header chunk size: 35
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "phase-heads"
  bundle2-output-part: "phase-heads" 24 bytes payload
  bundle2-output: part 7: "PHASE-HEADS"
  bundle2-output: header chunk size: 18
  bundle2-output: payload chunk size: 24
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "cache:rev-branch-cache"
  bundle2-output-part: "cache:rev-branch-cache" (advisory) streamed payload
  bundle2-output: part 8: "cache:rev-branch-cache"
  bundle2-output: header chunk size: 29
  bundle2-output: payload chunk size: 24719
  bundle2-output: closing payload chunk
  bundle2-output: end of bundle
  bundle2-input: start processing of HG20 stream
  bundle2-input: reading bundle2 stream parameters
  bundle2-input-bundle: with-transaction
  bundle2-input: start extraction of bundle2 parts
  bundle2-input: part header size: 44
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "0"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 22368
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 1024 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 186208
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "1"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 23564
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 128 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 23564
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "2"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 11788
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 11788
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "3"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 2956
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 16 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 2956
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "4"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 380
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 2 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 380
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "5"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 196
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 196
  bundle2-input: part header size: 35
  bundle2-input: part type: "LISTKEYS"
  bundle2-input: part id: "6"
  bundle2-input: part parameters: 1
  bundle2-input: found a handler for part listkeys
  bundle2-input-part: "listkeys" (params: 1 mandatory) supported
  bundle2-input: payload chunk size: 0
  bundle2-input: part header size: 18
  bundle2-input: part type: "PHASE-HEADS"
  bundle2-input: part id: "7"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part phase-heads
  bundle2-input-part: "phase-heads" supported
  bundle2-input: payload chunk size: 24
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 24
  bundle2-input: part header size: 29
  bundle2-input: part type: "cache:rev-branch-cache"
  bundle2-input: part id: "8"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part cache:rev-branch-cache
  bundle2-input-part: "cache:rev-branch-cache" (advisory) supported
  bundle2-input: payload chunk size: 24719
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 24719
  bundle2-input: part header size: 0
  bundle2-input: end of bundle2 stream
  bundle2-input-bundle: 8 parts total
  checking for updated bookmarks
  updating the branch cache
  new changesets 1ea73414a91b:f864bc82f6a2
  (run 'hg update' to get a working copy)

  $ mv newbundles oldbundles
  $ ls -1 server/.hg/cache/pullbundles > newbundles
  $ diff -u oldbundles newbundles

  $ hg -R server log -G -T '{rev}:{node}\n' -r '1234+head()+(only(head(), 1234) and (merge() or branchpoint()))'
  o  2130:0f376356904fc8c1c6ceaac27990f2fd79b1f8c1
  :
  o    1663:1710092b3ab17a6d2ecad664580991a608537749
  |\
  | ~
  | o  1517:1dded5aafa0f8d548f6357cc2f8882dcc4489fbf
  |/
  o  1250:d83212ecaa436c80d6113cf915ba35e2db787e79
  :
  o  1234:f864bc82f6a2f2ecb49b83722e0895f9d657b0dd
  |
  ~

  $ hg -R client2 pull server --debug --config devel.bundle2.debug=yes | grep -v 'add changeset'
  pulling from server
  query 1; heads
  searching for changes
  all local heads known remotely
  pullbundle-cache: "missing" set sliced into 16 subranges in *.* seconds (glob)
  16 changesets found in caches
  29 changesets found in caches
  256 changesets found in caches
  256 changesets found in caches
  64 changesets found in caches
  8 changesets found in caches
  1 changesets found in caches
  4 changesets found in caches
  8 changesets found in caches
  16 changesets found in caches
  128 changesets found in caches
  64 changesets found in caches
  32 changesets found in caches
  8 changesets found in caches
  4 changesets found in caches
  2 changesets found in caches
  listing keys for "bookmarks"
  bundle2-output-bundle: "HG20", 19 parts total
  bundle2-output: start emission of HG20 stream
  bundle2-output: bundle parameter: 
  bundle2-output: start of parts
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 0: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 2956
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 1: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 5348
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 2: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 14348
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 3: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 14348
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 4: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 11788
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 5: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 1484
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 6: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 196
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 7: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 748
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 8: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 1484
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 9: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 2956
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 10: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 23564
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 11: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 11788
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 12: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 5900
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 13: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 1484
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 14: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 748
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 15: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 380
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "listkeys"
  bundle2-output-part: "listkeys" (params: 1 mandatory) empty payload
  bundle2-output: part 16: "LISTKEYS"
  bundle2-output: header chunk size: 35
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "phase-heads"
  bundle2-output-part: "phase-heads" 48 bytes payload
  bundle2-output: part 17: "PHASE-HEADS"
  bundle2-output: header chunk size: 18
  bundle2-output: payload chunk size: 48
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "cache:rev-branch-cache"
  bundle2-output-part: "cache:rev-branch-cache" (advisory) streamed payload
  bundle2-output: part 18: "cache:rev-branch-cache"
  bundle2-output: header chunk size: 29
  bundle2-output: payload chunk size: 17939
  bundle2-output: closing payload chunk
  bundle2-output: end of bundle
  bundle2-input: start processing of HG20 stream
  bundle2-input: reading bundle2 stream parameters
  bundle2-input-bundle: with-transaction
  bundle2-input: start extraction of bundle2 parts
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "0"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 2956
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 16 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 2956
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "1"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 5348
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 29 changesets with 0 changes to 0 files (+1 heads)
  bundle2-input-part: total payload size 5348
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "2"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 14348
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 256 changesets with 0 changes to 0 files (-1 heads)
  bundle2-input-part: total payload size 47116
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "3"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 14348
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 256 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 47116
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "4"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 11788
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 11788
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "5"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 1484
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 1484
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "6"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 196
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files (+1 heads)
  bundle2-input-part: total payload size 196
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "7"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 748
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 4 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 748
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "8"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 1484
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 1484
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "9"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 2956
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 16 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 2956
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "10"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 23564
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 128 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 23564
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "11"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 11788
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 11788
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "12"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 5900
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 32 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 5900
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "13"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 1484
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 1484
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "14"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 748
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 4 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 748
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "15"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 380
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 2 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 380
  bundle2-input: part header size: 35
  bundle2-input: part type: "LISTKEYS"
  bundle2-input: part id: "16"
  bundle2-input: part parameters: 1
  bundle2-input: found a handler for part listkeys
  bundle2-input-part: "listkeys" (params: 1 mandatory) supported
  bundle2-input: payload chunk size: 0
  bundle2-input: part header size: 18
  bundle2-input: part type: "PHASE-HEADS"
  bundle2-input: part id: "17"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part phase-heads
  bundle2-input-part: "phase-heads" supported
  bundle2-input: payload chunk size: 48
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 48
  bundle2-input: part header size: 29
  bundle2-input: part type: "cache:rev-branch-cache"
  bundle2-input: part id: "18"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part cache:rev-branch-cache
  bundle2-input-part: "cache:rev-branch-cache" (advisory) supported
  bundle2-input: payload chunk size: 17939
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 17939
  bundle2-input: part header size: 0
  bundle2-input: end of bundle2 stream
  bundle2-input-bundle: 18 parts total
  checking for updated bookmarks
  updating the branch cache
  new changesets 17185c1c22f1:1dded5aafa0f
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ mv newbundles oldbundles
  $ ls -1 server/.hg/cache/pullbundles > newbundles
  $ diff -u oldbundles newbundles

different pull with a different client
--------------------------------------

  $ hg -R server log -G -T '{rev}:{node}\n' -r '87232049c8d1+0+1789+(::1789 and (merge() or branchpoint()))'
  o  2085:87232049c8d1f413105bf813b6bfc21da3e26a4f
  :
  o  1789:44e80141ad530a2aa085e9bd9b5311b57eff72ff
  :
  o    1663:1710092b3ab17a6d2ecad664580991a608537749
  |\
  o :  1250:d83212ecaa436c80d6113cf915ba35e2db787e79
  :/
  o  898:1388f909cd2b0685efd4e2ce076d198bce20922c
  :
  o  0:1ea73414a91b0920940797d8fc6a11e447f8ea1e
  

  $ hg -R client3 pull server -r 1789 --debug --config devel.bundle2.debug=yes | grep -v 'add changeset'
  pulling from server
  query 1; heads
  pullbundle-cache: "missing" set sliced into 9 subranges in *.* seconds (glob)
  1024 changesets found in caches
  227 changesets found
  29 changesets found in caches
  128 changesets found
  64 changesets found
  32 changesets found
  16 changesets found
  2 changesets found
  1 changesets found
  listing keys for "bookmarks"
  bundle2-output-bundle: "HG20", 12 parts total
  bundle2-output: start emission of HG20 stream
  bundle2-output: bundle parameter: 
  bundle2-output: start of parts
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 0: "CHANGEGROUP"
  bundle2-output: header chunk size: 44
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 22368
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 1: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 9012
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 2: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 5348
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 3: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 23564
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 4: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 11788
  bundle2-input: start processing of HG20 stream
  bundle2-input: reading bundle2 stream parameters
  bundle2-input-bundle: with-transaction
  bundle2-input: start extraction of bundle2 parts
  bundle2-input: part header size: 44
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "0"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 22368
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 1024 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 186208
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "1"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 9012
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 227 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 41780
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "2"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 5348
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 29 changesets with 0 changes to 0 files (+1 heads)
  bundle2-input-part: total payload size 5348
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "3"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 23564
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 128 changesets with 0 changes to 0 files (-1 heads)
  bundle2-input-part: total payload size 23564
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "4"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 11788
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 5: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 5900
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 6: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 2956
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 7: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 380
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 8: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 196
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "listkeys"
  bundle2-output-part: "listkeys" (params: 1 mandatory) empty payload
  bundle2-output: part 9: "LISTKEYS"
  bundle2-output: header chunk size: 35
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "phase-heads"
  bundle2-output-part: "phase-heads" 24 bytes payload
  bundle2-output: part 10: "PHASE-HEADS"
  bundle2-output: header chunk size: 18
  bundle2-output: payload chunk size: 24
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "cache:rev-branch-cache"
  bundle2-output-part: "cache:rev-branch-cache" (advisory) streamed payload
  bundle2-output: part 11: "cache:rev-branch-cache"
  bundle2-output: header chunk size: 29
  bundle2-output: payload chunk size: 30479
  bundle2-output: closing payload chunk
  bundle2-output: end of bundle
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 11788
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "5"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 5900
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 32 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 5900
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "6"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 2956
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 16 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 2956
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "7"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 380
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 2 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 380
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "8"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 196
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 196
  bundle2-input: part header size: 35
  bundle2-input: part type: "LISTKEYS"
  bundle2-input: part id: "9"
  bundle2-input: part parameters: 1
  bundle2-input: found a handler for part listkeys
  bundle2-input-part: "listkeys" (params: 1 mandatory) supported
  bundle2-input: payload chunk size: 0
  bundle2-input: part header size: 18
  bundle2-input: part type: "PHASE-HEADS"
  bundle2-input: part id: "10"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part phase-heads
  bundle2-input-part: "phase-heads" supported
  bundle2-input: payload chunk size: 24
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 24
  bundle2-input: part header size: 29
  bundle2-input: part type: "cache:rev-branch-cache"
  bundle2-input: part id: "11"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part cache:rev-branch-cache
  bundle2-input-part: "cache:rev-branch-cache" (advisory) supported
  bundle2-input: payload chunk size: 30479
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 30479
  bundle2-input: part header size: 0
  bundle2-input: end of bundle2 stream
  bundle2-input-bundle: 11 parts total
  checking for updated bookmarks
  updating the branch cache
  new changesets 1ea73414a91b:44e80141ad53
  (run 'hg update' to get a working copy)

  $ mv newbundles oldbundles
  $ ls -1 server/.hg/cache/pullbundles > newbundles
  $ diff -u oldbundles newbundles
  --- oldbundles	* (glob)
  +++ newbundles	* (glob)
  @@ -2,19 +2,26 @@
   02-1dded5aafa0f8d548f6357cc2f8882dcc4489fbf-0000001516skip-0000000002size.hg
   02-2dc4f1ab9029719714b8e0dde8e3725a5bb28472-0000001408skip-0000000064size.hg
   02-2f0e261a08964bc1c607c0eda4978364c22a9b94-0000001504skip-0000000008size.hg
  +02-44e80141ad530a2aa085e9bd9b5311b57eff72ff-0000001522skip-0000000001size.hg
   02-467b6e370e816747e27de0d0b9237f4090a33656-0000001152skip-0000000064size.hg
   02-4a6d0f7d07d060b026d9fc690cd89cd26af96e42-0000001264skip-0000000016size.hg
   02-540f762640ee62ca597ece26af725e6357e82805-0000000000skip-0000001024size.hg
  +02-59e60b258b18cde1e931cf30ce4ae62b49e37abd-0000001520skip-0000000002size.hg
   02-5eaa75df73c454c1afff722301a4c73e897de94d-0000001256skip-0000000008size.hg
   02-63ded94ceab180ac2fa13e1f0beeb4d2265998a3-0000001232skip-0000000002size.hg
  +02-7a55a4d5ce324910842c893b56173cf2a847cb9d-0000001472skip-0000000032size.hg
   02-7f3a79522d6e904d52aea07c71e6cb612667e8f4-0000001216skip-0000000016size.hg
  +02-a4ab7df9d74053fb819c8a1c6a48ad605cc05f8a-0000001504skip-0000000016size.hg
   02-b2d350c94c26edbb783aaa21fc24f1fc65c30e74-0000001536skip-0000000256size.hg
   02-bbd293bd171fd5b711d428db46940a72eca7a40f-0000001280skip-0000000128size.hg
  +02-c12927fef661d2463043347101b90067c2961333-0000001280skip-0000000128size.hg
   02-ca970a853ea24846035ccb324cc8de49ef768748-0000001252skip-0000000004size.hg
   02-d1807e3513890ac71c2e8d10e9dc9a5b58b15d4b-0000001251skip-0000000001size.hg
  +02-d83212ecaa436c80d6113cf915ba35e2db787e79-0000001024skip-0000000227size.hg
   02-d83212ecaa436c80d6113cf915ba35e2db787e79-0000001235skip-0000000016size.hg
   02-da87a81c5310760f414a933e6550b7e8e60cf241-0000001792skip-0000000064size.hg
   02-dba2fddbf3c28198659046674a512afd616a1519-0000001472skip-0000000032size.hg
  +02-dc714c3a5d080165292ba99b097567d0b95e5756-0000001408skip-0000000064size.hg
   02-e469a7aa5cce57653b6b02ff46c80b2d94d62629-0000000899skip-0000000029size.hg
   02-e74670ea99533967c5d90da3ddbc0318cc1fd502-0000001280skip-0000000256size.hg
   02-ee2deecf044fa5583f66188c9177b0f13332adc2-0000001024skip-0000000128size.hg
  [1]

  $ hg -R server log -G -T '{rev}:{node}\n' -r '1789+head()+parents(roots(only(head(), 1789)))+(only(head(), 1789) and (merge() or branchpoint()))'
  o  2130:0f376356904fc8c1c6ceaac27990f2fd79b1f8c1
  :
  o  1789:44e80141ad530a2aa085e9bd9b5311b57eff72ff
  :
  : o  1517:1dded5aafa0f8d548f6357cc2f8882dcc4489fbf
  :/
  o  1250:d83212ecaa436c80d6113cf915ba35e2db787e79
  |
  ~

  $ hg -R client3 pull server --debug --config devel.bundle2.debug=yes | grep -v 'add changeset'
  pulling from server
  query 1; heads
  searching for changes
  all local heads known remotely
  pullbundle-cache: "missing" set sliced into 16 subranges in *.* seconds (glob)
  1 changesets found
  4 changesets found
  8 changesets found
  256 changesets found in caches
  64 changesets found in caches
  8 changesets found in caches
  1 changesets found in caches
  4 changesets found in caches
  8 changesets found in caches
  16 changesets found in caches
  128 changesets found in caches
  64 changesets found in caches
  32 changesets found in caches
  8 changesets found in caches
  4 changesets found in caches
  2 changesets found in caches
  listing keys for "bookmarks"
  bundle2-output-bundle: "HG20", 19 parts total
  bundle2-output: start emission of HG20 stream
  bundle2-output: bundle parameter: 
  bundle2-output: start of parts
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 0: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 196
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 1: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 748
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 2: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 1484
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 3: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 32768
  bundle2-output: payload chunk size: 14348
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 4: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 11788
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 5: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 1484
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 6: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 196
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 7: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 748
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 8: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 1484
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 9: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 2956
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 10: "CHANGEGROUP"
  bundle2-output: header chunk size: 43
  bundle2-output: payload chunk size: 23564
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 11: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 11788
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 12: "CHANGEGROUP"
  bundle2-output: header chunk size: 42
  bundle2-output: payload chunk size: 5900
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 13: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 1484
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 14: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 748
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "changegroup"
  bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload
  bundle2-output: part 15: "CHANGEGROUP"
  bundle2-output: header chunk size: 41
  bundle2-output: payload chunk size: 380
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "listkeys"
  bundle2-output-part: "listkeys" (params: 1 mandatory) empty payload
  bundle2-output: part 16: "LISTKEYS"
  bundle2-output: header chunk size: 35
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "phase-heads"
  bundle2-output-part: "phase-heads" 48 bytes payload
  bundle2-output: part 17: "PHASE-HEADS"
  bundle2-output: header chunk size: 18
  bundle2-output: payload chunk size: 48
  bundle2-output: closing payload chunk
  bundle2-output: bundle part: "cache:rev-branch-cache"
  bundle2-output-part: "cache:rev-branch-cache" (advisory) streamed payload
  bundle2-output: part 18: "cache:rev-branch-cache"
  bundle2-output: header chunk size: 29
  bundle2-output: payload chunk size: 12179
  bundle2-output: closing payload chunk
  bundle2-output: end of bundle
  bundle2-input: start processing of HG20 stream
  bundle2-input: reading bundle2 stream parameters
  bundle2-input-bundle: with-transaction
  bundle2-input: start extraction of bundle2 parts
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "0"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 196
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 196
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "1"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 748
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 4 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 748
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "2"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 1484
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 1484
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "3"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 32768
  bundle2-input: payload chunk size: 14348
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 256 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 47116
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "4"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 11788
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 11788
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "5"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 1484
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 1484
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "6"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 196
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files (+1 heads)
  bundle2-input-part: total payload size 196
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "7"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 748
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 4 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 748
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "8"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 1484
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 1484
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "9"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 2956
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 16 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 2956
  bundle2-input: part header size: 43
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "10"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 23564
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 128 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 23564
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "11"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 11788
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 11788
  bundle2-input: part header size: 42
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "12"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 5900
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 32 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 5900
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "13"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 1484
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 1484
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "14"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 748
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 4 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 748
  bundle2-input: part header size: 41
  bundle2-input: part type: "CHANGEGROUP"
  bundle2-input: part id: "15"
  bundle2-input: part parameters: 2
  bundle2-input: found a handler for part changegroup
  bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
  adding changesets
  bundle2-input: payload chunk size: 380
  bundle2-input: payload chunk size: 0
  adding manifests
  adding file changes
  added 2 changesets with 0 changes to 0 files
  bundle2-input-part: total payload size 380
  bundle2-input: part header size: 35
  bundle2-input: part type: "LISTKEYS"
  bundle2-input: part id: "16"
  bundle2-input: part parameters: 1
  bundle2-input: found a handler for part listkeys
  bundle2-input-part: "listkeys" (params: 1 mandatory) supported
  bundle2-input: payload chunk size: 0
  bundle2-input: part header size: 18
  bundle2-input: part type: "PHASE-HEADS"
  bundle2-input: part id: "17"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part phase-heads
  bundle2-input-part: "phase-heads" supported
  bundle2-input: payload chunk size: 48
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 48
  bundle2-input: part header size: 29
  bundle2-input: part type: "cache:rev-branch-cache"
  bundle2-input: part id: "18"
  bundle2-input: part parameters: 0
  bundle2-input: found a handler for part cache:rev-branch-cache
  bundle2-input-part: "cache:rev-branch-cache" (advisory) supported
  bundle2-input: payload chunk size: 12179
  bundle2-input: payload chunk size: 0
  bundle2-input-part: total payload size 12179
  bundle2-input: part header size: 0
  bundle2-input: end of bundle2 stream
  bundle2-input-bundle: 18 parts total
  checking for updated bookmarks
  updating the branch cache
  new changesets c232505f58fd:1dded5aafa0f
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ mv newbundles oldbundles
  $ ls -1 server/.hg/cache/pullbundles > newbundles
  $ diff -u oldbundles newbundles
  --- oldbundles	* (glob)
  +++ newbundles	* (glob)
  @@ -1,5 +1,6 @@
   02-0f376356904fc8c1c6ceaac27990f2fd79b1f8c1-0000001856skip-0000000008size.hg
   02-1dded5aafa0f8d548f6357cc2f8882dcc4489fbf-0000001516skip-0000000002size.hg
  +02-1ed78f99f705cb819a02f1227c217728d008e461-0000001524skip-0000000004size.hg
   02-2dc4f1ab9029719714b8e0dde8e3725a5bb28472-0000001408skip-0000000064size.hg
   02-2f0e261a08964bc1c607c0eda4978364c22a9b94-0000001504skip-0000000008size.hg
   02-44e80141ad530a2aa085e9bd9b5311b57eff72ff-0000001522skip-0000000001size.hg
  @@ -15,6 +16,7 @@
   02-b2d350c94c26edbb783aaa21fc24f1fc65c30e74-0000001536skip-0000000256size.hg
   02-bbd293bd171fd5b711d428db46940a72eca7a40f-0000001280skip-0000000128size.hg
   02-c12927fef661d2463043347101b90067c2961333-0000001280skip-0000000128size.hg
  +02-c232505f58fdf70bcf5f6ab6a555f23ffc74f761-0000001523skip-0000000001size.hg
   02-ca970a853ea24846035ccb324cc8de49ef768748-0000001252skip-0000000004size.hg
   02-d1807e3513890ac71c2e8d10e9dc9a5b58b15d4b-0000001251skip-0000000001size.hg
   02-d83212ecaa436c80d6113cf915ba35e2db787e79-0000001024skip-0000000227size.hg
  @@ -24,6 +26,7 @@
   02-dc714c3a5d080165292ba99b097567d0b95e5756-0000001408skip-0000000064size.hg
   02-e469a7aa5cce57653b6b02ff46c80b2d94d62629-0000000899skip-0000000029size.hg
   02-e74670ea99533967c5d90da3ddbc0318cc1fd502-0000001280skip-0000000256size.hg
  +02-e74670ea99533967c5d90da3ddbc0318cc1fd502-0000001528skip-0000000008size.hg
   02-ee2deecf044fa5583f66188c9177b0f13332adc2-0000001024skip-0000000128size.hg
   02-f864bc82f6a2f2ecb49b83722e0895f9d657b0dd-0000001234skip-0000000001size.hg
   02-fb6c210a224903e81e5a8d2ee099cb0c9526ba8c-0000001512skip-0000000004size.hg
  [1]

Single pull coming after various cache warming
----------------------------------------------

  $ hg -R client4 pull --verbose server | grep -v 'add changeset'
  pulling from server
  requesting all changes
  pullbundle-cache: "missing" set sliced into 15 subranges in *.* seconds (glob)
  1024 changesets found in caches
  512 changesets found
  256 changesets found in caches
  64 changesets found in caches
  8 changesets found in caches
  1 changesets found in caches
  4 changesets found in caches
  8 changesets found in caches
  16 changesets found in caches
  128 changesets found in caches
  64 changesets found in caches
  32 changesets found in caches
  8 changesets found in caches
  4 changesets found in caches
  2 changesets found in caches
  uncompressed size of bundle content:
     94212 (changelog)
         4 (manifests)
  adding changesets
  adding manifests
  adding file changes
  added 1024 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 512 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 256 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files (+1 heads)
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 16 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 128 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 64 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 32 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 8 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 0 changes to 0 files
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 0 changes to 0 files
  new changesets 1ea73414a91b:1dded5aafa0f
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ mv newbundles oldbundles
  $ ls -1 server/.hg/cache/pullbundles > newbundles
  $ diff -u oldbundles newbundles
  --- oldbundles	* (glob)
  +++ newbundles	* (glob)
  @@ -25,6 +25,7 @@
   02-dba2fddbf3c28198659046674a512afd616a1519-0000001472skip-0000000032size.hg
   02-dc714c3a5d080165292ba99b097567d0b95e5756-0000001408skip-0000000064size.hg
   02-e469a7aa5cce57653b6b02ff46c80b2d94d62629-0000000899skip-0000000029size.hg
  +02-e74670ea99533967c5d90da3ddbc0318cc1fd502-0000001024skip-0000000512size.hg
   02-e74670ea99533967c5d90da3ddbc0318cc1fd502-0000001280skip-0000000256size.hg
   02-e74670ea99533967c5d90da3ddbc0318cc1fd502-0000001528skip-0000000008size.hg
   02-ee2deecf044fa5583f66188c9177b0f13332adc2-0000001024skip-0000000128size.hg
  [1]