Mercurial > hg
view tests/test-convert-bzr-merges.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 | 5e52b6da9c0c |
children | 0c72eddb4be5 |
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#require bzr N.B. bzr 1.13 has a bug that breaks this test. If you see this test fail, check your bzr version. Upgrading to bzr 1.13.1 should fix it. $ . "$TESTDIR/bzr-definitions" test multiple merges at once $ mkdir test-multimerge $ cd test-multimerge $ bzr init -q source $ cd source $ echo content > file $ echo text > rename_me $ bzr add -q file rename_me $ bzr commit -q -m 'Initial add' '--commit-time=2009-10-10 08:00:00 +0100' $ cd .. $ bzr branch -q source source-branch1 $ cd source-branch1 $ echo morecontent >> file $ echo evenmorecontent > file-branch1 $ bzr add -q file-branch1 $ bzr commit -q -m 'Added branch1 file' '--commit-time=2009-10-10 08:00:01 +0100' $ cd ../source $ sleep 1 $ echo content > file-parent $ bzr add -q file-parent $ bzr commit -q -m 'Added parent file' '--commit-time=2009-10-10 08:00:02 +0100' $ cd .. $ bzr branch -q source source-branch2 $ cd source-branch2 $ echo somecontent > file-branch2 $ bzr add -q file-branch2 $ bzr mv -q rename_me renamed $ echo change > renamed $ bzr commit -q -m 'Added brach2 file' '--commit-time=2009-10-10 08:00:03 +0100' $ sleep 1 $ cd ../source $ bzr merge -q ../source-branch1 $ bzr merge -q --force ../source-branch2 $ bzr commit -q -m 'Merged branches' '--commit-time=2009-10-10 08:00:04 +0100' $ cd .. BUG: file-branch2 should not be added in rev 4, and the rename_me -> renamed move should be recorded in the fixup merge. $ hg convert --datesort --config convert.bzr.saverev=False source source-hg initializing destination source-hg repository scanning source... sorting... converting... 4 Initial add 3 Added branch1 file 2 Added parent file 1 Added brach2 file 0 Merged branches warning: can't find ancestor for 'renamed' copied from 'rename_me'! $ glog -R source-hg o 5@source "(octopus merge fixup)" files+: [], files-: [], files: [renamed] |\ | o 4@source "Merged branches" files+: [file-branch1 file-branch2 renamed], files-: [rename_me], files: [file] | |\ o---+ 3@source-branch2 "Added brach2 file" files+: [file-branch2 renamed], files-: [rename_me], files: [] / / | o 2@source "Added parent file" files+: [file-parent], files-: [], files: [] | | o | 1@source-branch1 "Added branch1 file" files+: [file-branch1], files-: [], files: [file] |/ o 0@source "Initial add" files+: [file rename_me], files-: [], files: [] $ manifest source-hg tip % manifest of tip 644 file 644 file-branch1 644 file-branch2 644 file-parent 644 renamed $ hg convert source-hg hg2hg initializing destination hg2hg repository scanning source... sorting... converting... 5 Initial add 4 Added branch1 file 3 Added parent file 2 Added brach2 file 1 Merged branches 0 (octopus merge fixup) BUG: The manifest entries should be the same for matching revisions, and nothing should be outgoing $ hg -R source-hg manifest --debug -r tip | grep renamed 67109fdebf6c556eb0a9d5696dd98c8420520405 644 renamed $ hg -R hg2hg manifest --debug -r tip | grep renamed 27c968376d7c3afd095ecb9c7697919b933448c8 644 renamed $ hg -R source-hg manifest --debug -r 'tip^' | grep renamed 27c968376d7c3afd095ecb9c7697919b933448c8 644 renamed $ hg -R hg2hg manifest --debug -r 'tip^' | grep renamed 27c968376d7c3afd095ecb9c7697919b933448c8 644 renamed BUG: The revisions found should be the same in both repos $ hg --cwd source-hg log -r 'file("renamed")' -G -Tcompact o 5[tip]:4,3 6652429c300a 2009-10-10 08:00 +0100 foo |\ (octopus merge fixup) | | | o 4:2,1 e0ae8af3503a 2009-10-10 08:00 +0100 foo | |\ Merged branches | ~ ~ o 3 138bed2e14be 2009-10-10 08:00 +0100 foo | Added brach2 file ~ $ hg --cwd hg2hg log -r 'file("renamed")' -G -Tcompact o 4:2,1 e0ae8af3503a 2009-10-10 08:00 +0100 foo |\ Merged branches ~ ~ o 3 138bed2e14be 2009-10-10 08:00 +0100 foo | Added brach2 file ~ BUG(?): The move seems to be recorded in rev 4, so it should probably show up there. It's not recorded as a move in rev 5, even in source-hg. $ hg -R source-hg up -q tip $ hg -R hg2hg up -q tip $ hg --cwd source-hg log -r 'follow("renamed")' -G -Tcompact @ 5[tip]:4,3 6652429c300a 2009-10-10 08:00 +0100 foo |\ (octopus merge fixup) | : o : 3 138bed2e14be 2009-10-10 08:00 +0100 foo :/ Added brach2 file : o 0 18b86f5df51b 2009-10-10 08:00 +0100 foo Initial add $ hg --cwd hg2hg log -r 'follow("renamed")' -G -Tcompact o 3 138bed2e14be 2009-10-10 08:00 +0100 foo : Added brach2 file : o 0 18b86f5df51b 2009-10-10 08:00 +0100 foo Initial add $ hg -R hg2hg out source-hg -T compact comparing with source-hg searching for changes 5[tip]:4,3 3be2299ccd31 2009-10-10 08:00 +0100 foo (octopus merge fixup) $ glog -R hg2hg @ 5@source "(octopus merge fixup)" files+: [], files-: [], files: [] |\ | o 4@source "Merged branches" files+: [file-branch1 file-branch2 renamed], files-: [rename_me], files: [file] | |\ o---+ 3@source-branch2 "Added brach2 file" files+: [file-branch2 renamed], files-: [rename_me], files: [] / / | o 2@source "Added parent file" files+: [file-parent], files-: [], files: [] | | o | 1@source-branch1 "Added branch1 file" files+: [file-branch1], files-: [], files: [file] |/ o 0@source "Initial add" files+: [file rename_me], files-: [], files: [] $ hg -R source-hg log --debug -r tip changeset: 5:6652429c300ab66fdeaf2e730945676a00b53231 branch: source tag: tip phase: draft parent: 4:e0ae8af3503af9bbffb0b29268a02744cc61a561 parent: 3:138bed2e14be415a2692b02e41405b2864f758b4 manifest: 5:1eabd5f5d4b985784cf2c45c717ff053eca14b0d user: Foo Bar <foo.bar@example.com> date: Sat Oct 10 08:00:04 2009 +0100 files: renamed extra: branch=source description: (octopus merge fixup) $ hg -R hg2hg log --debug -r tip changeset: 5:3be2299ccd315ff9aab2b49bdb0d14e3244435e8 branch: source tag: tip phase: draft parent: 4:e0ae8af3503af9bbffb0b29268a02744cc61a561 parent: 3:138bed2e14be415a2692b02e41405b2864f758b4 manifest: 4:3ece3c7f2cc6df15b3cbbf3273c69869fc7c3ab0 user: Foo Bar <foo.bar@example.com> date: Sat Oct 10 08:00:04 2009 +0100 extra: branch=source description: (octopus merge fixup) $ hg -R source-hg manifest --debug -r tip cdf31ed9242b209cd94697112160e2c5b37a667d 644 file 5108144f585149b29779d7c7e51d61dd22303ffe 644 file-branch1 80753c4a9ac3806858405b96b24a907b309e3616 644 file-branch2 7108421418404a937c684d2479a34a24d2ce4757 644 file-parent 67109fdebf6c556eb0a9d5696dd98c8420520405 644 renamed $ hg -R source-hg manifest --debug -r 'tip^' cdf31ed9242b209cd94697112160e2c5b37a667d 644 file 5108144f585149b29779d7c7e51d61dd22303ffe 644 file-branch1 80753c4a9ac3806858405b96b24a907b309e3616 644 file-branch2 7108421418404a937c684d2479a34a24d2ce4757 644 file-parent 27c968376d7c3afd095ecb9c7697919b933448c8 644 renamed $ hg -R hg2hg manifest --debug -r tip cdf31ed9242b209cd94697112160e2c5b37a667d 644 file 5108144f585149b29779d7c7e51d61dd22303ffe 644 file-branch1 80753c4a9ac3806858405b96b24a907b309e3616 644 file-branch2 7108421418404a937c684d2479a34a24d2ce4757 644 file-parent 27c968376d7c3afd095ecb9c7697919b933448c8 644 renamed $ hg -R hg2hg manifest --debug -r 'tip^' cdf31ed9242b209cd94697112160e2c5b37a667d 644 file 5108144f585149b29779d7c7e51d61dd22303ffe 644 file-branch1 80753c4a9ac3806858405b96b24a907b309e3616 644 file-branch2 7108421418404a937c684d2479a34a24d2ce4757 644 file-parent 27c968376d7c3afd095ecb9c7697919b933448c8 644 renamed $ cd ..