Mercurial > hg
view tests/test-rebase-conflicts.t @ 42044:bb271ec2fbfb
compression: introduce a `storage.revlog.zstd.level` configuration
This option control the zstd compression level used when compressing revlog
chunk. The usage of zstd for revlog compression has not graduated from
experimental yet, but we intend to fix that soon.
The option name for the compression level is more straight forward to pick, so
this changesets comes first. Having a dedicated option for each compression
engine is useful because they don't support the same range of values.
I ran the same measurement as for the zlib compression level (in the parent
changesets). The variation in repository size is stay mostly in the same (small)
range. The "read/write" performance see smallish variation, but are overall much
better than zlib. Write performance show the same tend of having better write
performance for when reaching high-end compression.
Again, we don't intend to change the default zstd compression level (currently:
3) in this series. However this is worth investigating in the future.
The Performance comparison of zlib vs zstd is quite impressive. The repository
size stay in the same range, but the performance are much better in all
situations.
Comparison summary
==================
We are looking at:
- performance range for zlib
- performance range for zstd
- comparison of default zstd (level-3) to default zlib (level 6)
- comparison of the slowest zstd time to the fastest zlib time
Read performance:
-----------------
| zlib | zstd | cmp | f2s
mercurial | 0.170159 - 0.189219 | 0.144127 - 0.149624 | 80% | 88%
pypy | 2.679217 - 2.768691 | 1.532317 - 1.705044 | 60% | 63%
netbeans | 122.477027 - 141.620281 | 72.996346 - 89.731560 | 58% | 73%
mozilla | 147.867662 - 170.572118 | 91.700995 - 105.853099 | 56% | 71%
Write performance:
------------------
| zlib | zstd | cmp | f2s
mercurial | 53.250304 - 56.2936129 | 40.877025 - 45.677286 | 75% | 86%
pypy | 460.721984 - 476.589918 | 270.545409 - 301.002219 | 63% | 65%
netbeans | 520.560316 - 715.930400 | 370.356311 - 428.329652 | 55% | 82%
mozilla | 739.803002 - 987.056093 | 505.152906 - 591.930683 | 57% | 80%
Raw data
--------
repo alg lvl .hg/store size 00manifest.d read write
mercurial zlib 1 49,402,813 5,963,475 0.170159 53.250304
mercurial zlib 6 47,197,397 5,875,730 0.182820 56.264320
mercurial zlib 9 47,121,596 5,849,781 0.189219 56.293612
mercurial zstd 1 49,737,084 5,966,355 0.144127 40.877025
mercurial zstd 3 48,961,867 5,895,208 0.146376 42.268142
mercurial zstd 5 48,200,592 5,938,676 0.149624 43.162875
mercurial zstd 10 47,833,520 5,913,353 0.145185 44.012489
mercurial zstd 15 47,314,604 5,728,679 0.147686 45.677286
mercurial zstd 20 47,330,502 5,830,539 0.145789 45.025407
mercurial zstd 22 47,330,076 5,830,539 0.143996 44.690460
pypy zlib 1 370,830,572 28,462,425 2.679217 460.721984
pypy zlib 6 340,112,317 27,648,747 2.768691 467.537158
pypy zlib 9 338,360,736 27,639,003 2.763495 476.589918
pypy zstd 1 362,377,479 27,916,214 1.532317 270.545409
pypy zstd 3 354,137,693 27,905,988 1.686718 294.951509
pypy zstd 5 342,640,043 27,655,774 1.705044 301.002219
pypy zstd 10 334,224,327 27,164,493 1.567287 285.186239
pypy zstd 15 329,000,363 26,645,965 1.637729 299.561332
pypy zstd 20 324,534,039 26,199,547 1.526813 302.149827
pypy zstd 22 324,530,595 26,198,932 1.525718 307.821218
netbeans zlib 1 1,281,847,810 165,495,457 122.477027 520.560316
netbeans zlib 6 1,205,284,353 159,161,207 139.876147 715.930400
netbeans zlib 9 1,197,135,671 155,034,586 141.620281 678.297064
netbeans zstd 1 1,259,581,737 160,840,613 72.996346 370.356311
netbeans zstd 3 1,232,978,122 157,691,551 81.622317 396.733087
netbeans zstd 5 1,208,034,075 160,246,880 83.080549 364.342626
netbeans zstd 10 1,188,624,176 156,083,417 79.323935 403.594602
netbeans zstd 15 1,176,973,589 153,859,477 89.731560 428.329652
netbeans zstd 20 1,162,958,258 151,147,535 82.842667 392.335349
netbeans zstd 22 1,162,707,029 151,150,220 82.565695 402.840655
mozilla zlib 1 2,775,497,186 298,527,987 147.867662 751.263721
mozilla zlib 6 2,596,856,420 286,597,671 170.572118 987.056093
mozilla zlib 9 2,587,542,494 287,018,264 163.622338 739.803002
mozilla zstd 1 2,723,159,348 286,617,532 91.700995 570.042751
mozilla zstd 3 2,665,055,001 286,152,013 95.240155 561.412805
mozilla zstd 5 2,607,819,817 288,060,030 101.978048 505.152906
mozilla zstd 10 2,558,761,085 283,967,648 104.113481 497.771202
mozilla zstd 15 2,526,216,060 275,581,300 105.853099 591.930683
mozilla zstd 20 2,485,114,806 266,478,859 95.268795 576.515389
mozilla zstd 22 2,484,869,080 266,456,505 94.429282 572.785537
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Wed, 27 Mar 2019 18:35:59 +0100 |
parents | 89630d0b3e23 |
children | 70b71421fd33 |
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$ cat >> $HGRCPATH <<EOF > [extensions] > rebase= > drawdag=$TESTDIR/drawdag.py > > [phases] > publish=False > > [alias] > tglog = log -G --template "{rev}:{phase} '{desc}' {branches} {bookmarks}\n" > EOF $ hg init a $ cd a $ echo c1 >common $ hg add common $ hg ci -m C1 $ echo c2 >>common $ hg ci -m C2 $ echo c3 >>common $ hg ci -m C3 $ hg up -q -C 1 $ echo l1 >>extra $ hg add extra $ hg ci -m L1 created new head $ sed -e 's/c2/l2/' common > common.new $ mv common.new common $ hg ci -m L2 $ echo l3 >> extra2 $ hg add extra2 $ hg ci -m L3 $ hg bookmark mybook $ hg phase --force --secret 4 $ hg tglog @ 5:secret 'L3' mybook | o 4:secret 'L2' | o 3:draft 'L1' | | o 2:draft 'C3' |/ o 1:draft 'C2' | o 0:draft 'C1' Try to call --continue: $ hg rebase --continue abort: no rebase in progress [255] Conflicting rebase: $ hg rebase -s 3 -d 2 rebasing 3:3163e20567cc "L1" rebasing 4:46f0b057b5c0 "L2" merging common warning: conflicts while merging common! (edit, then use 'hg resolve --mark') unresolved conflicts (see hg resolve, then hg rebase --continue) [1] $ hg status --config commands.status.verbose=1 M common ? common.orig # The repository is in an unfinished *rebase* state. # Unresolved merge conflicts: # # common # # To mark files as resolved: hg resolve --mark FILE # To continue: hg rebase --continue # To abort: hg rebase --abort Try to continue without solving the conflict: $ hg rebase --continue abort: unresolved merge conflicts (see 'hg help resolve') [255] Conclude rebase: $ echo 'resolved merge' >common $ hg resolve -m common (no more unresolved files) continue: hg rebase --continue $ hg rebase --continue already rebased 3:3163e20567cc "L1" as 3e046f2ecedb rebasing 4:46f0b057b5c0 "L2" rebasing 5:8029388f38dc "L3" (mybook) saved backup bundle to $TESTTMP/a/.hg/strip-backup/3163e20567cc-5ca4656e-rebase.hg $ hg tglog @ 5:secret 'L3' mybook | o 4:secret 'L2' | o 3:draft 'L1' | o 2:draft 'C3' | o 1:draft 'C2' | o 0:draft 'C1' Check correctness: $ hg cat -r 0 common c1 $ hg cat -r 1 common c1 c2 $ hg cat -r 2 common c1 c2 c3 $ hg cat -r 3 common c1 c2 c3 $ hg cat -r 4 common resolved merge $ hg cat -r 5 common resolved merge Bookmark stays active after --continue $ hg bookmarks * mybook 5:d67b21408fc0 $ cd .. Check that the right ancestors is used while rebasing a merge (issue4041) $ hg init issue4041 $ cd issue4041 $ hg unbundle "$TESTDIR/bundles/issue4041.hg" adding changesets adding manifests adding file changes added 11 changesets with 8 changes to 3 files (+1 heads) new changesets 24797d4f68de:2f2496ddf49d (11 drafts) (run 'hg heads' to see heads) $ hg up default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg log -G o changeset: 10:2f2496ddf49d |\ branch: f1 | | tag: tip | | parent: 7:4c9fbe56a16f | | parent: 9:e31216eec445 | | user: szhang | | date: Thu Sep 05 12:59:39 2013 -0400 | | summary: merge | | | o changeset: 9:e31216eec445 | | branch: f1 | | user: szhang | | date: Thu Sep 05 12:59:10 2013 -0400 | | summary: more changes to f1 | | | o changeset: 8:8e4e2c1a07ae | |\ branch: f1 | | | parent: 2:4bc80088dc6b | | | parent: 6:400110238667 | | | user: szhang | | | date: Thu Sep 05 12:57:59 2013 -0400 | | | summary: bad merge | | | o | | changeset: 7:4c9fbe56a16f |/ / branch: f1 | | parent: 2:4bc80088dc6b | | user: szhang | | date: Thu Sep 05 12:54:00 2013 -0400 | | summary: changed f1 | | | o changeset: 6:400110238667 | | branch: f2 | | parent: 4:12e8ec6bb010 | | user: szhang | | date: Tue Sep 03 13:58:02 2013 -0400 | | summary: changed f2 on f2 | | | | @ changeset: 5:d79e2059b5c0 | | | parent: 3:8a951942e016 | | | user: szhang | | | date: Tue Sep 03 13:57:39 2013 -0400 | | | summary: changed f2 on default | | | | o | changeset: 4:12e8ec6bb010 | |/ branch: f2 | | user: szhang | | date: Tue Sep 03 13:57:18 2013 -0400 | | summary: created f2 branch | | | o changeset: 3:8a951942e016 | | parent: 0:24797d4f68de | | user: szhang | | date: Tue Sep 03 13:57:11 2013 -0400 | | summary: added f2.txt | | o | changeset: 2:4bc80088dc6b | | branch: f1 | | user: szhang | | date: Tue Sep 03 13:56:20 2013 -0400 | | summary: added f1.txt | | o | changeset: 1:ef53c9e6b608 |/ branch: f1 | user: szhang | date: Tue Sep 03 13:55:26 2013 -0400 | summary: created f1 branch | o changeset: 0:24797d4f68de user: szhang date: Tue Sep 03 13:55:08 2013 -0400 summary: added default.txt $ hg rebase -s9 -d2 --debug # use debug to really check merge base used rebase onto 4bc80088dc6b starting from e31216eec445 rebasing on disk rebase status stored rebasing 9:e31216eec445 "more changes to f1" future parents are 2 and -1 update to 2:4bc80088dc6b resolving manifests branchmerge: False, force: True, partial: False ancestor: d79e2059b5c0+, local: d79e2059b5c0+, remote: 4bc80088dc6b f2.txt: other deleted -> r removing f2.txt f1.txt: remote created -> g getting f1.txt merge against 9:e31216eec445 detach base 8:8e4e2c1a07ae searching for copies back to rev 3 unmatched files in other (from topological common ancestor): f2.txt resolving manifests branchmerge: True, force: True, partial: False ancestor: 8e4e2c1a07ae, local: 4bc80088dc6b+, remote: e31216eec445 f1.txt: remote is newer -> g getting f1.txt committing files: f1.txt committing manifest committing changelog updating the branch cache rebased as 19c888675e13 rebase status stored rebasing 10:2f2496ddf49d "merge" (tip) future parents are 11 and 7 already in destination merge against 10:2f2496ddf49d detach base 9:e31216eec445 searching for copies back to rev 3 unmatched files in other (from topological common ancestor): f2.txt resolving manifests branchmerge: True, force: True, partial: False ancestor: e31216eec445, local: 19c888675e13+, remote: 2f2496ddf49d f1.txt: remote is newer -> g getting f1.txt committing files: f1.txt committing manifest committing changelog updating the branch cache rebased as 2a7f09cac94c rebase status stored rebase merging completed update back to initial working directory parent resolving manifests branchmerge: False, force: False, partial: False ancestor: 2a7f09cac94c, local: 2a7f09cac94c+, remote: d79e2059b5c0 f1.txt: other deleted -> r removing f1.txt f2.txt: remote created -> g getting f2.txt 2 changesets found list of changesets: e31216eec445e44352c5f01588856059466a24c9 2f2496ddf49d69b5ef23ad8cf9fb2e0e4faf0ac2 bundle2-output-bundle: "HG20", (1 params) 3 parts total bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload bundle2-output-part: "cache:rev-branch-cache" (advisory) streamed payload bundle2-output-part: "phase-heads" 24 bytes payload saved backup bundle to $TESTTMP/issue4041/.hg/strip-backup/e31216eec445-15f7a814-rebase.hg 3 changesets found list of changesets: 4c9fbe56a16f30c0d5dcc40ec1a97bbe3325209c 19c888675e133ab5dff84516926a65672eaf04d9 2a7f09cac94c7f4b73ebd5cd1a62d3b2e8e336bf bundle2-output-bundle: "HG20", 3 parts total bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload bundle2-output-part: "cache:rev-branch-cache" (advisory) streamed payload bundle2-output-part: "phase-heads" 24 bytes payload adding branch bundle2-input-bundle: with-transaction bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported adding changesets add changeset 4c9fbe56a16f add changeset 19c888675e13 add changeset 2a7f09cac94c adding manifests adding file changes adding f1.txt revisions added 2 changesets with 2 changes to 1 files bundle2-input-part: total payload size 1686 bundle2-input-part: "cache:rev-branch-cache" (advisory) supported bundle2-input-part: total payload size 74 truncating cache/rbc-revs-v1 to 56 bundle2-input-part: "phase-heads" supported bundle2-input-part: total payload size 24 bundle2-input-bundle: 2 parts total updating the branch cache invalid branchheads cache (served): tip differs rebase completed Test minimization of merge conflicts $ hg up -q null $ echo a > a $ hg add a $ hg commit -q -m 'a' $ echo b >> a $ hg commit -q -m 'ab' $ hg bookmark ab $ hg up -q '.^' $ echo b >> a $ echo c >> a $ hg commit -q -m 'abc' $ hg rebase -s 7bc217434fc1 -d ab --keep rebasing 13:7bc217434fc1 "abc" (tip) merging a warning: conflicts while merging a! (edit, then use 'hg resolve --mark') unresolved conflicts (see hg resolve, then hg rebase --continue) [1] $ hg diff diff -r 328e4ab1f7cc a --- a/a Thu Jan 01 00:00:00 1970 +0000 +++ b/a * (glob) @@ -1,2 +1,6 @@ a b +<<<<<<< dest: 328e4ab1f7cc ab - test: ab +======= +c +>>>>>>> source: 7bc217434fc1 - test: abc $ hg rebase --abort rebase aborted $ hg up -q -C 7bc217434fc1 $ hg rebase -s . -d ab --keep -t internal:merge3 rebasing 13:7bc217434fc1 "abc" (tip) merging a warning: conflicts while merging a! (edit, then use 'hg resolve --mark') unresolved conflicts (see hg resolve, then hg rebase --continue) [1] $ hg diff diff -r 328e4ab1f7cc a --- a/a Thu Jan 01 00:00:00 1970 +0000 +++ b/a * (glob) @@ -1,2 +1,8 @@ a +<<<<<<< dest: 328e4ab1f7cc ab - test: ab b +||||||| base +======= +b +c +>>>>>>> source: 7bc217434fc1 - test: abc Test rebase with obsstore turned on and off (issue5606) $ cd $TESTTMP $ hg init b $ cd b $ hg debugdrawdag <<'EOS' > D > | > C > | > B E > |/ > A > EOS $ hg update E -q $ echo 3 > B $ hg commit --amend -m E -A B -q $ hg rebase -r B+D -d . --config experimental.evolution=true rebasing 1:112478962961 "B" (B) merging B warning: conflicts while merging B! (edit, then use 'hg resolve --mark') unresolved conflicts (see hg resolve, then hg rebase --continue) [1] $ echo 4 > B $ hg resolve -m (no more unresolved files) continue: hg rebase --continue $ hg rebase --continue --config experimental.evolution=none rebasing 1:112478962961 "B" (B) rebasing 3:f585351a92f8 "D" (D) warning: orphaned descendants detected, not stripping 112478962961 saved backup bundle to $TESTTMP/b/.hg/strip-backup/f585351a92f8-e536a9e4-rebase.hg $ rm .hg/localtags $ hg tglog o 5:draft 'D' | o 4:draft 'B' | @ 3:draft 'E' | | o 2:draft 'C' | | | o 1:draft 'B' |/ o 0:draft 'A'