Mercurial > hg
view tests/test-verify.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 | f1186c292d03 |
children | e1936ae27897 |
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#require reporevlogstore prepare repo $ hg init a $ cd a $ echo "some text" > FOO.txt $ echo "another text" > bar.txt $ echo "more text" > QUICK.txt $ hg add adding FOO.txt adding QUICK.txt adding bar.txt $ hg ci -mtest1 verify $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 1 changesets with 3 changes to 3 files verify with journal $ touch .hg/store/journal $ hg verify abandoned transaction found - run hg recover checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 1 changesets with 3 changes to 3 files $ rm .hg/store/journal introduce some bugs in repo $ cd .hg/store/data $ mv _f_o_o.txt.i X_f_o_o.txt.i $ mv bar.txt.i xbar.txt.i $ rm _q_u_i_c_k.txt.i $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files warning: revlog 'data/FOO.txt.i' not in fncache! 0: empty or missing FOO.txt FOO.txt@0: manifest refers to unknown revision f62022d3d590 warning: revlog 'data/QUICK.txt.i' not in fncache! 0: empty or missing QUICK.txt QUICK.txt@0: manifest refers to unknown revision 88b857db8eba warning: revlog 'data/bar.txt.i' not in fncache! 0: empty or missing bar.txt bar.txt@0: manifest refers to unknown revision 256559129457 checked 1 changesets with 0 changes to 3 files 3 warnings encountered! hint: run "hg debugrebuildfncache" to recover from corrupt fncache 6 integrity errors encountered! (first damaged changeset appears to be 0) [1] $ cd ../../.. $ cd .. Set up a repo for testing missing revlog entries $ hg init missing-entries $ cd missing-entries $ echo 0 > file $ hg ci -Aqm0 $ cp -R .hg/store .hg/store-partial $ echo 1 > file $ hg ci -Aqm1 $ cp -R .hg/store .hg/store-full Entire changelog missing $ rm .hg/store/00changelog.* $ hg verify -q 0: empty or missing changelog manifest@0: d0b6632564d4 not in changesets manifest@1: 941fc4534185 not in changesets 3 integrity errors encountered! (first damaged changeset appears to be 0) [1] $ cp -R .hg/store-full/. .hg/store Entire manifest log missing $ rm .hg/store/00manifest.* $ hg verify -q 0: empty or missing manifest 1 integrity errors encountered! (first damaged changeset appears to be 0) [1] $ cp -R .hg/store-full/. .hg/store Entire filelog missing $ rm .hg/store/data/file.* $ hg verify -q warning: revlog 'data/file.i' not in fncache! 0: empty or missing file file@0: manifest refers to unknown revision 362fef284ce2 file@1: manifest refers to unknown revision c10f2164107d 1 warnings encountered! hint: run "hg debugrebuildfncache" to recover from corrupt fncache 3 integrity errors encountered! (first damaged changeset appears to be 0) [1] $ cp -R .hg/store-full/. .hg/store Entire changelog and manifest log missing $ rm .hg/store/00changelog.* $ rm .hg/store/00manifest.* $ hg verify -q warning: orphan data file 'data/file.i' 1 warnings encountered! $ cp -R .hg/store-full/. .hg/store Entire changelog and filelog missing $ rm .hg/store/00changelog.* $ rm .hg/store/data/file.* $ hg verify -q 0: empty or missing changelog manifest@0: d0b6632564d4 not in changesets manifest@1: 941fc4534185 not in changesets warning: revlog 'data/file.i' not in fncache! ?: empty or missing file file@0: manifest refers to unknown revision 362fef284ce2 file@1: manifest refers to unknown revision c10f2164107d 1 warnings encountered! hint: run "hg debugrebuildfncache" to recover from corrupt fncache 6 integrity errors encountered! (first damaged changeset appears to be 0) [1] $ cp -R .hg/store-full/. .hg/store Entire manifest log and filelog missing $ rm .hg/store/00manifest.* $ rm .hg/store/data/file.* $ hg verify -q 0: empty or missing manifest warning: revlog 'data/file.i' not in fncache! 0: empty or missing file 1 warnings encountered! hint: run "hg debugrebuildfncache" to recover from corrupt fncache 2 integrity errors encountered! (first damaged changeset appears to be 0) [1] $ cp -R .hg/store-full/. .hg/store Changelog missing entry $ cp -f .hg/store-partial/00changelog.* .hg/store $ hg verify -q manifest@?: rev 1 points to nonexistent changeset 1 manifest@?: 941fc4534185 not in changesets file@?: rev 1 points to nonexistent changeset 1 (expected 0) 1 warnings encountered! 3 integrity errors encountered! [1] $ cp -R .hg/store-full/. .hg/store Manifest log missing entry $ cp -f .hg/store-partial/00manifest.* .hg/store $ hg verify -q manifest@1: changeset refers to unknown revision 941fc4534185 file@1: c10f2164107d not in manifests 2 integrity errors encountered! (first damaged changeset appears to be 1) [1] $ cp -R .hg/store-full/. .hg/store Filelog missing entry $ cp -f .hg/store-partial/data/file.* .hg/store/data $ hg verify -q file@1: manifest refers to unknown revision c10f2164107d 1 integrity errors encountered! (first damaged changeset appears to be 1) [1] $ cp -R .hg/store-full/. .hg/store Changelog and manifest log missing entry $ cp -f .hg/store-partial/00changelog.* .hg/store $ cp -f .hg/store-partial/00manifest.* .hg/store $ hg verify -q file@?: rev 1 points to nonexistent changeset 1 (expected 0) file@?: c10f2164107d not in manifests 1 warnings encountered! 2 integrity errors encountered! [1] $ cp -R .hg/store-full/. .hg/store Changelog and filelog missing entry $ cp -f .hg/store-partial/00changelog.* .hg/store $ cp -f .hg/store-partial/data/file.* .hg/store/data $ hg verify -q manifest@?: rev 1 points to nonexistent changeset 1 manifest@?: 941fc4534185 not in changesets file@?: manifest refers to unknown revision c10f2164107d 3 integrity errors encountered! [1] $ cp -R .hg/store-full/. .hg/store Manifest and filelog missing entry $ cp -f .hg/store-partial/00manifest.* .hg/store $ cp -f .hg/store-partial/data/file.* .hg/store/data $ hg verify -q manifest@1: changeset refers to unknown revision 941fc4534185 1 integrity errors encountered! (first damaged changeset appears to be 1) [1] $ cp -R .hg/store-full/. .hg/store Corrupt changelog base node to cause failure to read revision $ printf abcd | dd conv=notrunc of=.hg/store/00changelog.i bs=1 seek=16 \ > 2> /dev/null $ hg verify -q 0: unpacking changeset 08b1860757c2: * (glob) manifest@?: rev 0 points to unexpected changeset 0 manifest@?: d0b6632564d4 not in changesets file@?: rev 0 points to unexpected changeset 0 (expected 1) 1 warnings encountered! 4 integrity errors encountered! (first damaged changeset appears to be 0) [1] $ cp -R .hg/store-full/. .hg/store Corrupt manifest log base node to cause failure to read revision $ printf abcd | dd conv=notrunc of=.hg/store/00manifest.i bs=1 seek=16 \ > 2> /dev/null $ hg verify -q manifest@0: reading delta d0b6632564d4: * (glob) file@0: 362fef284ce2 not in manifests 2 integrity errors encountered! (first damaged changeset appears to be 0) [1] $ cp -R .hg/store-full/. .hg/store Corrupt filelog base node to cause failure to read revision $ printf abcd | dd conv=notrunc of=.hg/store/data/file.i bs=1 seek=16 \ > 2> /dev/null $ hg verify -q file@0: unpacking 362fef284ce2: * (glob) 1 integrity errors encountered! (first damaged changeset appears to be 0) [1] $ cp -R .hg/store-full/. .hg/store $ cd .. test changelog without a manifest $ hg init b $ cd b $ hg branch foo marked working directory as branch foo (branches are permanent and global, did you want a bookmark?) $ hg ci -m branchfoo $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 1 changesets with 0 changes to 0 files test revlog corruption $ touch a $ hg add a $ hg ci -m a $ echo 'corrupted' > b $ dd if=.hg/store/data/a.i of=start bs=1 count=20 2>/dev/null $ cat start b > .hg/store/data/a.i $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files a@1: broken revlog! (index data/a.i is corrupted) warning: orphan data file 'data/a.i' checked 2 changesets with 0 changes to 1 files 1 warnings encountered! 1 integrity errors encountered! (first damaged changeset appears to be 1) [1] $ cd .. test revlog format 0 $ revlog-formatv0.py $ cd formatv0 $ hg verify repository uses revlog format 0 checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 1 changesets with 1 changes to 1 files $ cd .. test flag processor and skipflags $ hg init skipflags $ cd skipflags $ cat >> .hg/hgrc <<EOF > [extensions] > flagprocessor=$RUNTESTDIR/flagprocessorext.py > EOF $ echo '[BASE64]content' > base64 $ hg commit -Aqm 'flag processor content' base64 $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 1 changesets with 1 changes to 1 files $ cat >> $TESTTMP/break-base64.py <<EOF > from __future__ import absolute_import > import base64 > base64.b64decode=lambda x: x > EOF $ cat >> .hg/hgrc <<EOF > breakbase64=$TESTTMP/break-base64.py > EOF $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files base64@0: unpacking 794cee7777cb: integrity check failed on data/base64.i:0 checked 1 changesets with 1 changes to 1 files 1 integrity errors encountered! (first damaged changeset appears to be 0) [1] $ hg verify --config verify.skipflags=2147483647 checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 1 changesets with 1 changes to 1 files