Mercurial > hg
view tests/test-convert-svn-source.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 | e095a9688a31 |
children | 7e5be4a7cda7 |
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#require svn svn-bindings $ filter_svn_output () { > egrep -v 'Committing|Updating|(^$)' | sed -e 's/done$//' || true > } $ cat >> $HGRCPATH <<EOF > [extensions] > convert = > [convert] > svn.trunk = mytrunk > EOF $ svnadmin create svn-repo $ SVNREPOPATH=`pwd`/svn-repo $ SVNREPOURL="`"$PYTHON" $TESTDIR/svnurlof.py \"$SVNREPOPATH\"`" $ INVALIDREVISIONID=svn:x2147622-4a9f-4db4-a8d3-13562ff547b2/proj%20B/mytrunk@1 $ VALIDREVISIONID=svn:a2147622-4a9f-4db4-a8d3-13562ff547b2/proj%20B/mytrunk/mytrunk@1 Now test that it works with trunk/tags layout, but no branches yet. Initial svn import $ mkdir projB $ cd projB $ mkdir mytrunk $ mkdir tags $ cd .. $ svn import -m "init projB" projB "$SVNREPOURL/proj%20B" | filter_svn_output | sort Adding projB/mytrunk Adding projB/tags Committed revision 1. Update svn repository $ svn co "$SVNREPOURL/proj%20B/mytrunk" B | filter_svn_output Checked out revision 1. $ cd B $ echo hello > 'letter .txt' $ svn add 'letter .txt' | filter_svn_output A letter .txt $ svn ci -m hello | filter_svn_output Adding letter .txt Transmitting file data . Committed revision 2. $ svn-safe-append.py world 'letter .txt' $ svn ci -m world | filter_svn_output Sending letter .txt Transmitting file data . Committed revision 3. $ svn copy -m "tag v0.1" "$SVNREPOURL/proj%20B/mytrunk" "$SVNREPOURL/proj%20B/tags/v0.1" | filter_svn_output Committed revision 4. $ svn-safe-append.py 'nice day today!' 'letter .txt' $ svn ci -m "nice day" | filter_svn_output Sending letter .txt Transmitting file data . Committed revision 5. $ cd .. Convert to hg once and also test localtimezone option NOTE: This doesn't check all time zones -- it merely determines that the configuration option is taking effect. An arbitrary (U.S.) time zone is used here. TZ=US/Hawaii is selected since it does not use DST (unlike other U.S. time zones) and is always a fixed difference from UTC. $ TZ=US/Hawaii hg convert --config convert.localtimezone=True "$SVNREPOURL/proj%20B" B-hg initializing destination B-hg repository scanning source... sorting... converting... 3 init projB 2 hello 1 world 0 nice day updating tags Update svn repository again $ cd B $ svn-safe-append.py "see second letter" 'letter .txt' $ echo "nice to meet you" > letter2.txt $ svn add letter2.txt | filter_svn_output A letter2.txt $ svn ci -m "second letter" | filter_svn_output Sending letter .txt Adding letter2.txt Transmitting file data .. Committed revision 6. $ svn copy -m "tag v0.2" "$SVNREPOURL/proj%20B/mytrunk" "$SVNREPOURL/proj%20B/tags/v0.2" | filter_svn_output Committed revision 7. $ svn-safe-append.py "blah-blah-blah" letter2.txt $ svn ci -m "work in progress" | filter_svn_output Sending letter2.txt Transmitting file data . Committed revision 8. $ cd .. $ hg convert -s svn "$SVNREPOURL/proj%20B/non-existent-path" dest initializing destination dest repository abort: no revision found in module /proj B/non-existent-path [255] ######################################## Test incremental conversion $ TZ=US/Hawaii hg convert --config convert.localtimezone=True "$SVNREPOURL/proj%20B" B-hg scanning source... sorting... converting... 1 second letter 0 work in progress updating tags $ cd B-hg $ hg log -G --template '{rev} {desc|firstline} date: {date|date} files: {files}\n' o 7 update tags date: * +0000 files: .hgtags (glob) | o 6 work in progress date: * -1000 files: letter2.txt (glob) | o 5 second letter date: * -1000 files: letter .txt letter2.txt (glob) | o 4 update tags date: * +0000 files: .hgtags (glob) | o 3 nice day date: * -1000 files: letter .txt (glob) | o 2 world date: * -1000 files: letter .txt (glob) | o 1 hello date: * -1000 files: letter .txt (glob) | o 0 init projB date: * -1000 files: (glob) $ hg tags -q tip v0.2 v0.1 $ cd .. Test filemap $ echo 'include letter2.txt' > filemap $ hg convert --filemap filemap "$SVNREPOURL/proj%20B/mytrunk" fmap initializing destination fmap repository scanning source... sorting... converting... 5 init projB 4 hello 3 world 2 nice day 1 second letter 0 work in progress $ hg -R fmap branch -q default $ hg log -G -R fmap --template '{rev} {desc|firstline} files: {files}\n' o 1 work in progress files: letter2.txt | o 0 second letter files: letter2.txt Convert with --full adds and removes files that didn't change $ cd B $ echo >> "letter .txt" $ svn ci -m 'nothing' | filter_svn_output Sending letter .txt Transmitting file data . Committed revision 9. $ cd .. $ echo 'rename letter2.txt letter3.txt' > filemap $ hg convert --filemap filemap --full "$SVNREPOURL/proj%20B/mytrunk" fmap scanning source... sorting... converting... 0 nothing $ hg -R fmap st --change tip A letter .txt A letter3.txt R letter2.txt test invalid splicemap1 $ cat > splicemap <<EOF > $INVALIDREVISIONID $VALIDREVISIONID > EOF $ hg convert --splicemap splicemap "$SVNREPOURL/proj%20B/mytrunk" smap initializing destination smap repository abort: splicemap entry svn:x2147622-4a9f-4db4-a8d3-13562ff547b2/proj%20B/mytrunk@1 is not a valid revision identifier [255] Test stop revision $ hg convert --rev 1 "$SVNREPOURL/proj%20B/mytrunk" stoprev initializing destination stoprev repository scanning source... sorting... converting... 0 init projB $ hg -R stoprev branch -q default Check convert_revision extra-records. This is also the only place testing more than one extra field in a revision. $ cd stoprev $ hg tip --debug | grep extra extra: branch=default extra: convert_revision=svn:........-....-....-....-............/proj B/mytrunk@1 (re) $ cd .. Test converting empty heads (issue3347). Also tests getting logs directly without debugsvnlog. $ svnadmin create svn-empty $ svnadmin load -q svn-empty < "$TESTDIR/svn/empty.svndump" $ hg --config convert.svn.trunk= --config convert.svn.debugsvnlog=0 convert svn-empty assuming destination svn-empty-hg initializing destination svn-empty-hg repository scanning source... sorting... converting... 1 init projA 0 adddir $ hg --config convert.svn.trunk= convert "$SVNREPOURL/../svn-empty/trunk" assuming destination trunk-hg initializing destination trunk-hg repository scanning source... sorting... converting... 1 init projA 0 adddir Test that a too-new repository format is properly rejected: $ mv svn-empty/format format $ echo 999 > svn-empty/format It's important that this command explicitly specify svn, otherwise it can have surprising side effects (like falling back to a perforce depot that can be seen from the test environment and slurping from that.) $ hg convert --source-type svn svn-empty this-will-fail initializing destination this-will-fail repository file:/*/$TESTTMP/svn-empty does not look like a Subversion repository to libsvn version 1.*.* (glob) abort: svn-empty: missing or unsupported repository [255] $ mv format svn-empty/format enable svn subrepos $ cat >> $HGRCPATH <<EOF > [subrepos] > svn:allowed = true > EOF try converting when we have an svn subrepo and a merge in hg superrepo (issue5657) $ cd "$TESTTMP" $ hg init withmerge $ cd withmerge $ echo "subrepo = [svn]$SVNREPOURL" >.hgsub $ hg add .hgsub $ svn checkout "$SVNREPOURL" subrepo | sort A subrepo/proj B A subrepo/proj B/mytrunk A subrepo/proj B/mytrunk/letter .txt A subrepo/proj B/mytrunk/letter2.txt A subrepo/proj B/tags A subrepo/proj B/tags/v0.1 A subrepo/proj B/tags/v0.1/letter .txt A subrepo/proj B/tags/v0.2 A subrepo/proj B/tags/v0.2/letter .txt A subrepo/proj B/tags/v0.2/letter2.txt Checked out revision 9. $ hg ci -m "Adding svn subrepo" $ touch file1.txt $ hg add file1.txt $ hg ci -m "Adding file1" $ hg up 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ touch file2.txt $ hg add file2.txt $ hg ci -m "Adding file2" created new head $ hg merge 1 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg ci -m "merged" $ cd .. $ hg --config extensions.convert= convert withmerge withmerge-converted initializing destination withmerge-converted repository scanning source... sorting... converting... 3 Adding svn subrepo 2 Adding file1 1 Adding file2 0 merged $ cd withmerge-converted $ hg up | sort 4 files updated, 0 files merged, 0 files removed, 0 files unresolved A subrepo/proj B A subrepo/proj B/mytrunk A subrepo/proj B/mytrunk/letter .txt A subrepo/proj B/mytrunk/letter2.txt A subrepo/proj B/tags A subrepo/proj B/tags/v0.1 A subrepo/proj B/tags/v0.1/letter .txt A subrepo/proj B/tags/v0.2 A subrepo/proj B/tags/v0.2/letter .txt A subrepo/proj B/tags/v0.2/letter2.txt Checked out revision 9. $ ls file1.txt file2.txt subrepo