Mercurial > hg
view tests/test-bundle2-multiple-changegroups.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 | 94faa2e84094 |
children | d7304434390f |
line wrap: on
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Create an extension to test bundle2 with multiple changegroups $ cat > bundle2.py <<EOF > """ > """ > from mercurial import changegroup, discovery, exchange > > def _getbundlechangegrouppart(bundler, repo, source, bundlecaps=None, > b2caps=None, heads=None, common=None, > **kwargs): > # Create two changegroups given the common changesets and heads for the > # changegroup part we are being requested. Use the parent of each head > # in 'heads' as intermediate heads for the first changegroup. > intermediates = [repo[r].p1().node() for r in heads] > outgoing = discovery.outgoing(repo, common, intermediates) > cg = changegroup.makechangegroup(repo, outgoing, b'01', > source, bundlecaps=bundlecaps) > bundler.newpart(b'output', data=b'changegroup1') > bundler.newpart(b'changegroup', data=cg.getchunks()) > outgoing = discovery.outgoing(repo, common + intermediates, heads) > cg = changegroup.makechangegroup(repo, outgoing, b'01', > source, bundlecaps=bundlecaps) > bundler.newpart(b'output', data=b'changegroup2') > bundler.newpart(b'changegroup', data=cg.getchunks()) > > def _pull(repo, *args, **kwargs): > pullop = _orig_pull(repo, *args, **kwargs) > repo.ui.write(b'pullop.cgresult is %d\n' % pullop.cgresult) > return pullop > > _orig_pull = exchange.pull > exchange.pull = _pull > exchange.getbundle2partsmapping[b'changegroup'] = _getbundlechangegrouppart > EOF $ cat >> $HGRCPATH << EOF > [ui] > logtemplate={rev}:{node|short} {phase} {author} {bookmarks} {desc|firstline} > EOF Start with a simple repository with a single commit $ hg init repo $ cd repo $ cat > .hg/hgrc << EOF > [extensions] > bundle2=$TESTTMP/bundle2.py > EOF $ echo A > A $ hg commit -A -m A -q $ cd .. Clone $ hg clone -q repo clone Add two linear commits $ cd repo $ echo B > B $ hg commit -A -m B -q $ echo C > C $ hg commit -A -m C -q $ cd ../clone $ cat >> .hg/hgrc <<EOF > [hooks] > pretxnchangegroup = sh -c "printenv.py --line pretxnchangegroup" > changegroup = sh -c "printenv.py --line changegroup" > incoming = sh -c "printenv.py --line incoming" > EOF Pull the new commits in the clone $ hg pull pulling from $TESTTMP/repo searching for changes remote: changegroup1 adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup HG_HOOKTYPE=pretxnchangegroup HG_NODE=27547f69f25460a52fff66ad004e58da7ad3fb56 HG_NODE_LAST=27547f69f25460a52fff66ad004e58da7ad3fb56 HG_PENDING=$TESTTMP/clone HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo remote: changegroup2 adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup HG_HOOKTYPE=pretxnchangegroup HG_NODE=f838bfaca5c7226600ebcfd84f3c3c13a28d3757 HG_NODE_LAST=f838bfaca5c7226600ebcfd84f3c3c13a28d3757 HG_PENDING=$TESTTMP/clone HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo new changesets 27547f69f254:f838bfaca5c7 changegroup hook: HG_HOOKNAME=changegroup HG_HOOKTYPE=changegroup HG_NODE=27547f69f25460a52fff66ad004e58da7ad3fb56 HG_NODE_LAST=27547f69f25460a52fff66ad004e58da7ad3fb56 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo incoming hook: HG_HOOKNAME=incoming HG_HOOKTYPE=incoming HG_NODE=27547f69f25460a52fff66ad004e58da7ad3fb56 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo changegroup hook: HG_HOOKNAME=changegroup HG_HOOKTYPE=changegroup HG_NODE=f838bfaca5c7226600ebcfd84f3c3c13a28d3757 HG_NODE_LAST=f838bfaca5c7226600ebcfd84f3c3c13a28d3757 HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo incoming hook: HG_HOOKNAME=incoming HG_HOOKTYPE=incoming HG_NODE=f838bfaca5c7226600ebcfd84f3c3c13a28d3757 HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo pullop.cgresult is 1 (run 'hg update' to get a working copy) $ hg update 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg log -G @ 2:f838bfaca5c7 public test C | o 1:27547f69f254 public test B | o 0:4a2df7238c3b public test A Add more changesets with multiple heads to the original repository $ cd ../repo $ echo D > D $ hg commit -A -m D -q $ hg up -r 1 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ echo E > E $ hg commit -A -m E -q $ echo F > F $ hg commit -A -m F -q $ hg up -r 1 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ echo G > G $ hg commit -A -m G -q $ hg up -r 3 2 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo H > H $ hg commit -A -m H -q $ hg log -G @ 7:5cd59d311f65 draft test H | | o 6:1d14c3ce6ac0 draft test G | | | | o 5:7f219660301f draft test F | | | | | o 4:8a5212ebc852 draft test E | |/ o | 3:b3325c91a4d9 draft test D | | o | 2:f838bfaca5c7 draft test C |/ o 1:27547f69f254 draft test B | o 0:4a2df7238c3b draft test A New heads are reported during transfer and properly accounted for in pullop.cgresult $ cd ../clone $ hg pull pulling from $TESTTMP/repo searching for changes remote: changegroup1 adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files (+1 heads) pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup HG_HOOKTYPE=pretxnchangegroup HG_NODE=b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e HG_NODE_LAST=8a5212ebc8527f9fb821601504794e3eb11a1ed3 HG_PENDING=$TESTTMP/clone HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo remote: changegroup2 adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files (+1 heads) pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup HG_HOOKTYPE=pretxnchangegroup HG_NODE=7f219660301fe4c8a116f714df5e769695cc2b46 HG_NODE_LAST=5cd59d311f6508b8e0ed28a266756c859419c9f1 HG_PENDING=$TESTTMP/clone HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo new changesets b3325c91a4d9:5cd59d311f65 changegroup hook: HG_HOOKNAME=changegroup HG_HOOKTYPE=changegroup HG_NODE=b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e HG_NODE_LAST=8a5212ebc8527f9fb821601504794e3eb11a1ed3 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo incoming hook: HG_HOOKNAME=incoming HG_HOOKTYPE=incoming HG_NODE=b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo incoming hook: HG_HOOKNAME=incoming HG_HOOKTYPE=incoming HG_NODE=8a5212ebc8527f9fb821601504794e3eb11a1ed3 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo changegroup hook: HG_HOOKNAME=changegroup HG_HOOKTYPE=changegroup HG_NODE=7f219660301fe4c8a116f714df5e769695cc2b46 HG_NODE_LAST=5cd59d311f6508b8e0ed28a266756c859419c9f1 HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo incoming hook: HG_HOOKNAME=incoming HG_HOOKTYPE=incoming HG_NODE=7f219660301fe4c8a116f714df5e769695cc2b46 HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo incoming hook: HG_HOOKNAME=incoming HG_HOOKTYPE=incoming HG_NODE=1d14c3ce6ac0582d2809220d33e8cd7a696e0156 HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo incoming hook: HG_HOOKNAME=incoming HG_HOOKTYPE=incoming HG_NODE=5cd59d311f6508b8e0ed28a266756c859419c9f1 HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo pullop.cgresult is 3 (run 'hg heads' to see heads, 'hg merge' to merge) $ hg log -G o 7:5cd59d311f65 public test H | | o 6:1d14c3ce6ac0 public test G | | | | o 5:7f219660301f public test F | | | | | o 4:8a5212ebc852 public test E | |/ o | 3:b3325c91a4d9 public test D | | @ | 2:f838bfaca5c7 public test C |/ o 1:27547f69f254 public test B | o 0:4a2df7238c3b public test A Removing a head from the original repository by merging it $ cd ../repo $ hg merge -r 6 -q $ hg commit -m Merge $ echo I > I $ hg commit -A -m H -q $ hg log -G @ 9:9d18e5bd9ab0 draft test H | o 8:71bd7b46de72 draft test Merge |\ | o 7:5cd59d311f65 draft test H | | o | 6:1d14c3ce6ac0 draft test G | | | | o 5:7f219660301f draft test F | | | +---o 4:8a5212ebc852 draft test E | | | o 3:b3325c91a4d9 draft test D | | | o 2:f838bfaca5c7 draft test C |/ o 1:27547f69f254 draft test B | o 0:4a2df7238c3b draft test A Removed heads are reported during transfer and properly accounted for in pullop.cgresult $ cd ../clone $ hg pull pulling from $TESTTMP/repo searching for changes remote: changegroup1 adding changesets adding manifests adding file changes added 1 changesets with 0 changes to 0 files (-1 heads) pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup HG_HOOKTYPE=pretxnchangegroup HG_NODE=71bd7b46de72e69a32455bf88d04757d542e6cf4 HG_NODE_LAST=71bd7b46de72e69a32455bf88d04757d542e6cf4 HG_PENDING=$TESTTMP/clone HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo remote: changegroup2 adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup HG_HOOKTYPE=pretxnchangegroup HG_NODE=9d18e5bd9ab09337802595d49f1dad0c98df4d84 HG_NODE_LAST=9d18e5bd9ab09337802595d49f1dad0c98df4d84 HG_PENDING=$TESTTMP/clone HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo new changesets 71bd7b46de72:9d18e5bd9ab0 changegroup hook: HG_HOOKNAME=changegroup HG_HOOKTYPE=changegroup HG_NODE=71bd7b46de72e69a32455bf88d04757d542e6cf4 HG_NODE_LAST=71bd7b46de72e69a32455bf88d04757d542e6cf4 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo incoming hook: HG_HOOKNAME=incoming HG_HOOKTYPE=incoming HG_NODE=71bd7b46de72e69a32455bf88d04757d542e6cf4 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo changegroup hook: HG_HOOKNAME=changegroup HG_HOOKTYPE=changegroup HG_NODE=9d18e5bd9ab09337802595d49f1dad0c98df4d84 HG_NODE_LAST=9d18e5bd9ab09337802595d49f1dad0c98df4d84 HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo incoming hook: HG_HOOKNAME=incoming HG_HOOKTYPE=incoming HG_NODE=9d18e5bd9ab09337802595d49f1dad0c98df4d84 HG_PHASES_MOVED=1 HG_SOURCE=pull HG_TXNID=TXN:$ID$ HG_TXNNAME=pull file:/*/$TESTTMP/repo (glob) HG_URL=file:$TESTTMP/repo pullop.cgresult is -2 (run 'hg update' to get a working copy) $ hg log -G o 9:9d18e5bd9ab0 public test H | o 8:71bd7b46de72 public test Merge |\ | o 7:5cd59d311f65 public test H | | o | 6:1d14c3ce6ac0 public test G | | | | o 5:7f219660301f public test F | | | +---o 4:8a5212ebc852 public test E | | | o 3:b3325c91a4d9 public test D | | | @ 2:f838bfaca5c7 public test C |/ o 1:27547f69f254 public test B | o 0:4a2df7238c3b public test A