sidedatacopies: fast path data fetching if revision has no sidedata
When using the side data mode, we know their won't be any copy information
sidedata. Skipping revision restoration give an important speed boost.
In the future, there will be other user of sidedata, reducing the efficiency of
this. We should consider adding a dedicated flag in revlog V2 to preserve this
optimisation. The current situation is good enough for now.
revision: large amount; added files: large amount; rename small amount;
c3b14617fbd7 9ba6ab77fd29
before: ! wall 2.401569 comb 2.400000 user 2.390000 sys 0.010000 (median of 10)
after: ! wall 1.429294 comb 1.430000 user 1.410000 sys 0.020000 (median of 10)
revision: large amount; added files: small amount; rename small amount;
c3b14617fbd7 f650a9b140d2
before: ! wall 3.519140 comb 3.520000 user 3.470000 sys 0.050000 (median of 10)
after: ! wall 1.963332 comb 1.960000 user 1.960000 sys 0.000000 (median of 10)
revision: large amount; added files: large amount; rename large amount;
08ea3258278e d9fa043f30c0
before: ! wall 0.593880 comb 0.600000 user 0.590000 sys 0.010000 (median of 15)
after: ! wall 0.251679 comb 0.250000 user 0.250000 sys 0.000000 (median of 38)
revision: small amount; added files: large amount; rename large amount;
df6f7a526b60 a83dc6a2d56f
before: ! wall 0.013414 comb 0.020000 user 0.020000 sys 0.000000 (median of 220)
after: ! wall 0.013222 comb 0.020000 user 0.020000 sys 0.000000 (median of 223)
revision: small amount; added files: large amount; rename small amount;
4aa4e1f8e19a 169138063d63
before: ! wall 0.002711 comb 0.000000 user 0.000000 sys 0.000000 (median of 1000)
after: ! wall 0.001631 comb 0.000000 user 0.000000 sys 0.000000 (median of 1000)
revision: small amount; added files: small amount; rename small amount;
4bc173b045a6 964879152e2e
before: ! wall 0.000077 comb 0.000000 user 0.000000 sys 0.000000 (median of 12208)
after: ! wall 0.000078 comb 0.000000 user 0.000000 sys 0.000000 (median of 12012)
revision: medium amount; added files: large amount; rename medium amount;
c95f1ced15f2 2c68e87c3efe
before: ! wall 0.410067 comb 0.410000 user 0.410000 sys 0.000000 (median of 23)
after: ! wall 0.207786 comb 0.200000 user 0.200000 sys 0.000000 (median of 46)
revision: medium amount; added files: medium amount; rename small amount;
d343da0c55a8 d7746d32bf9d
before: ! wall 0.097004 comb 0.090000 user 0.090000 sys 0.000000 (median of 100)
after: ! wall 0.038495 comb 0.030000 user 0.030000 sys 0.000000 (median of 100)
Differential Revision: https://phab.mercurial-scm.org/D7074
#require no-chg
$ hg init repo
$ cd repo
$ echo foo > foo
$ hg ci -qAm 'add foo'
$ echo >> foo
$ hg ci -m 'change foo'
$ hg up -qC 0
$ echo bar > bar
$ hg ci -qAm 'add bar'
$ hg log
changeset: 2:effea6de0384
tag: tip
parent: 0:bbd179dfa0a7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add bar
changeset: 1:ed1b79f46b9a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: change foo
changeset: 0:bbd179dfa0a7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add foo
$ cd ..
Test pullbundle functionality
$ cd repo
$ cat <<EOF > .hg/hgrc
> [server]
> pullbundle = True
> [extensions]
> blackbox =
> EOF
$ hg bundle --base null -r 0 .hg/0.hg
1 changesets found
$ hg bundle --base 0 -r 1 .hg/1.hg
1 changesets found
$ hg bundle --base 1 -r 2 .hg/2.hg
1 changesets found
$ cat <<EOF > .hg/pullbundles.manifest
> 2.hg BUNDLESPEC=none-v2 heads=effea6de0384e684f44435651cb7bd70b8735bd4 bases=bbd179dfa0a71671c253b3ae0aa1513b60d199fa
> 1.hg BUNDLESPEC=bzip2-v2 heads=ed1b79f46b9a29f5a6efa59cf12fcfca43bead5a bases=bbd179dfa0a71671c253b3ae0aa1513b60d199fa
> 0.hg BUNDLESPEC=gzip-v2 heads=bbd179dfa0a71671c253b3ae0aa1513b60d199fa
> EOF
$ hg --config blackbox.track=debug --debug serve -p $HGPORT2 -d --pid-file=../repo.pid
listening at http://*:$HGPORT2/ (bound to $LOCALIP:$HGPORT2) (glob) (?)
$ cat ../repo.pid >> $DAEMON_PIDS
$ cd ..
$ hg clone -r 0 http://localhost:$HGPORT2/ repo.pullbundle
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets bbd179dfa0a7 (1 drafts)
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd repo.pullbundle
$ hg pull -r 1
pulling from http://localhost:$HGPORT2/
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets ed1b79f46b9a (1 drafts)
(run 'hg update' to get a working copy)
$ hg pull -r 2
pulling from http://localhost:$HGPORT2/
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
new changesets effea6de0384 (1 drafts)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ cd ..
$ killdaemons.py
$ grep 'sending pullbundle ' repo/.hg/blackbox.log
* sending pullbundle "0.hg" (glob)
* sending pullbundle "1.hg" (glob)
* sending pullbundle "2.hg" (glob)
$ rm repo/.hg/blackbox.log
Test pullbundle functionality for incremental pulls
$ cd repo
$ hg --config blackbox.track=debug --debug serve -p $HGPORT2 -d --pid-file=../repo.pid
listening at http://*:$HGPORT2/ (bound to $LOCALIP:$HGPORT2) (glob) (?)
$ cat ../repo.pid >> $DAEMON_PIDS
$ cd ..
$ hg clone http://localhost:$HGPORT2/ repo.pullbundle2
requesting all changes
adding changesets
adding manifests
adding file changes
adding changesets
adding manifests
adding file changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 3 changes to 3 files (+1 heads)
new changesets bbd179dfa0a7:ed1b79f46b9a (3 drafts)
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ killdaemons.py
$ grep 'sending pullbundle ' repo/.hg/blackbox.log
* sending pullbundle "0.hg" (glob)
* sending pullbundle "2.hg" (glob)
* sending pullbundle "1.hg" (glob)
$ rm repo/.hg/blackbox.log
Test pullbundle functionality for incoming
$ cd repo
$ hg --config blackbox.track=debug --debug serve -p $HGPORT2 -d --pid-file=../repo.pid
listening at http://*:$HGPORT2/ (bound to $LOCALIP:$HGPORT2) (glob) (?)
$ cat ../repo.pid >> $DAEMON_PIDS
$ cd ..
$ hg clone http://localhost:$HGPORT2/ repo.pullbundle2a -r 0
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets bbd179dfa0a7 (1 drafts)
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd repo.pullbundle2a
$ hg incoming -r ed1b79f46b9a
comparing with http://localhost:$HGPORT2/
searching for changes
changeset: 1:ed1b79f46b9a
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: change foo
$ cd ..
$ killdaemons.py
$ grep 'sending pullbundle ' repo/.hg/blackbox.log
* sending pullbundle "0.hg" (glob)
* sending pullbundle "1.hg" (glob)
$ rm repo/.hg/blackbox.log
Test recovery from misconfigured server sending no new data
$ cd repo
$ cat <<EOF > .hg/pullbundles.manifest
> 0.hg heads=ed1b79f46b9a29f5a6efa59cf12fcfca43bead5a bases=bbd179dfa0a71671c253b3ae0aa1513b60d199fa
> 0.hg heads=bbd179dfa0a71671c253b3ae0aa1513b60d199fa
> EOF
$ hg --config blackbox.track=debug --debug serve -p $HGPORT2 -d --pid-file=../repo.pid
listening at http://*:$HGPORT2/ (bound to $LOCALIP:$HGPORT2) (glob) (?)
$ cat ../repo.pid >> $DAEMON_PIDS
$ cd ..
$ hg clone -r 0 http://localhost:$HGPORT2/ repo.pullbundle3
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets bbd179dfa0a7 (1 drafts)
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd repo.pullbundle3
$ hg pull -r 1
pulling from http://localhost:$HGPORT2/
searching for changes
adding changesets
adding manifests
adding file changes
added 0 changesets with 0 changes to 1 files
abort: 00changelog.i@ed1b79f46b9a: no node!
[255]
$ cd ..
$ killdaemons.py
$ grep 'sending pullbundle ' repo/.hg/blackbox.log
* sending pullbundle "0.hg" (glob)
* sending pullbundle "0.hg" (glob)
$ rm repo/.hg/blackbox.log