Mercurial > hg
view tests/test-narrow-share.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 | 88a7c211b21e |
children | 84bd6ae2d1f6 |
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#testcases flat tree $ . "$TESTDIR/narrow-library.sh" #if tree $ cat << EOF >> $HGRCPATH > [experimental] > treemanifest = 1 > EOF #endif $ cat << EOF >> $HGRCPATH > [extensions] > share = > EOF $ hg init remote $ cd remote $ for x in `$TESTDIR/seq.py 0 10` > do > mkdir d$x > echo $x > d$x/f > hg add d$x/f > hg commit -m "add d$x/f" > done $ cd .. $ hg clone --narrow ssh://user@dummy/remote main -q \ > --include d1 --include d3 --include d5 --include d7 $ hg share main share updating working directory 4 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R share tracked I path:d1 I path:d3 I path:d5 I path:d7 $ hg -R share files share/d1/f share/d3/f share/d5/f share/d7/f Narrow the share and check that the main repo's working copy gets updated # Make sure the files that are supposed to be known-clean get their timestamps set in the dirstate $ sleep 2 $ hg -R main st $ hg -R main debugdirstate --no-dates n 644 2 set d1/f n 644 2 set d3/f n 644 2 set d5/f n 644 2 set d7/f # Make d3/f dirty $ echo x >> main/d3/f $ echo y >> main/d3/g $ hg add main/d3/g $ hg -R main st M d3/f A d3/g # Make d5/f not match the dirstate timestamp even though it's clean $ sleep 2 $ hg -R main st M d3/f A d3/g $ hg -R main debugdirstate --no-dates n 644 2 set d1/f n 644 2 set d3/f a 0 -1 unset d3/g n 644 2 set d5/f n 644 2 set d7/f $ touch main/d5/f $ hg -R share tracked --removeinclude d1 --removeinclude d3 --removeinclude d5 comparing with ssh://user@dummy/remote searching for changes looking for local changes to affected paths deleting data/d1/f.i deleting data/d3/f.i deleting data/d5/f.i deleting meta/d1/00manifest.i (tree !) deleting meta/d3/00manifest.i (tree !) deleting meta/d5/00manifest.i (tree !) $ hg -R main tracked I path:d7 $ hg -R main files abort: working copy's narrowspec is stale (run 'hg tracked --update-working-copy') [255] $ hg -R main tracked --update-working-copy not deleting possibly dirty file d3/f not deleting possibly dirty file d3/g not deleting possibly dirty file d5/f # d1/f, d3/f, d3/g and d5/f should no longer be reported $ hg -R main files main/d7/f # d1/f should no longer be there, d3/f should be since it was dirty, d3/g should be there since # it was added, and d5/f should be since we couldn't be sure it was clean $ find main/d* -type f | sort main/d3/f main/d3/g main/d5/f main/d7/f Widen the share and check that the main repo's working copy gets updated $ hg -R share tracked --addinclude d1 --addinclude d3 -q $ hg -R share tracked I path:d1 I path:d3 I path:d7 $ hg -R share files share/d1/f share/d3/f share/d7/f $ hg -R main tracked I path:d1 I path:d3 I path:d7 $ hg -R main files abort: working copy's narrowspec is stale (run 'hg tracked --update-working-copy') [255] $ hg -R main tracked --update-working-copy # d1/f, d3/f should be back $ hg -R main files main/d1/f main/d3/f main/d7/f # d3/f should be modified (not clobbered by the widening), and d3/g should be untracked $ hg -R main st --all M d3/f ? d3/g C d1/f C d7/f We should also be able to unshare without breaking everything: $ hg share main share-unshare updating working directory 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd share-unshare $ hg unshare $ hg verify checking changesets checking manifests checking directory manifests (tree !) crosschecking files in changesets and manifests checking files checked 11 changesets with 3 changes to 3 files $ cd .. Dirstate should be left alone when upgrading from version of hg that didn't support narrow+share $ hg share main share-upgrade updating working directory 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd share-upgrade $ echo x >> d1/f $ echo y >> d3/g $ hg add d3/g $ hg rm d7/f $ hg st M d1/f A d3/g R d7/f Make it look like a repo from before narrow+share was supported $ rm .hg/narrowspec.dirstate $ hg ci -Am test abort: working copy's narrowspec is stale (run 'hg tracked --update-working-copy') [255] $ hg tracked --update-working-copy $ hg st M d1/f A d3/g R d7/f $ cd ..