Mercurial > hg
view tests/test-wireproto-caching.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 | a0886a4d6dce |
children | 95c4cca641f6 |
line wrap: on
line source
$ . $TESTDIR/wireprotohelpers.sh $ cat >> $HGRCPATH << EOF > [extensions] > blackbox = > [blackbox] > track = simplecache > EOF $ hg init server $ enablehttpv2 server $ cd server $ cat >> .hg/hgrc << EOF > [extensions] > simplecache = $TESTDIR/wireprotosimplecache.py > EOF $ echo a0 > a $ echo b0 > b $ hg -q commit -A -m 'commit 0' $ echo a1 > a $ hg commit -m 'commit 1' $ echo b1 > b $ hg commit -m 'commit 2' $ echo a2 > a $ echo b2 > b $ hg commit -m 'commit 3' $ hg log -G -T '{rev}:{node} {desc}' @ 3:50590a86f3ff5d1e9a1624a7a6957884565cc8e8 commit 3 | o 2:4d01eda50c6ac5f7e89cbe1880143a32f559c302 commit 2 | o 1:4432d83626e8a98655f062ec1f2a43b07f7fbbb0 commit 1 | o 0:3390ef850073fbc2f0dfff2244342c8e9229013a commit 0 $ hg --debug debugindex -m rev linkrev nodeid p1 p2 0 0 992f4779029a3df8d0666d00bb924f69634e2641 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 1 1 a988fb43583e871d1ed5750ee074c6d840bbbfc8 992f4779029a3df8d0666d00bb924f69634e2641 0000000000000000000000000000000000000000 2 2 a8853dafacfca6fc807055a660d8b835141a3bb4 a988fb43583e871d1ed5750ee074c6d840bbbfc8 0000000000000000000000000000000000000000 3 3 3fe11dfbb13645782b0addafbe75a87c210ffddc a8853dafacfca6fc807055a660d8b835141a3bb4 0000000000000000000000000000000000000000 $ hg serve -p $HGPORT -d --pid-file hg.pid -E error.log $ cat hg.pid > $DAEMON_PIDS Performing the same request should result in same result, with 2nd response coming from cache. $ sendhttpv2peer << EOF > command manifestdata > nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41'] > tree eval:b'' > fields eval:[b'parents'] > EOF creating http peer for wire protocol version 2 sending manifestdata command response: gen[ { b'totalitems': 1 }, { b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A', b'parents': [ b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' ] } ] $ sendhttpv2peer << EOF > command manifestdata > nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41'] > tree eval:b'' > fields eval:[b'parents'] > EOF creating http peer for wire protocol version 2 sending manifestdata command response: gen[ { b'totalitems': 1 }, { b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A', b'parents': [ b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' ] } ] Sending different request doesn't yield cache hit. $ sendhttpv2peer << EOF > command manifestdata > nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41', b'\xa9\x88\xfb\x43\x58\x3e\x87\x1d\x1e\xd5\x75\x0e\xe0\x74\xc6\xd8\x40\xbb\xbf\xc8'] > tree eval:b'' > fields eval:[b'parents'] > EOF creating http peer for wire protocol version 2 sending manifestdata command response: gen[ { b'totalitems': 2 }, { b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A', b'parents': [ b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' ] }, { b'node': b'\xa9\x88\xfbCX>\x87\x1d\x1e\xd5u\x0e\xe0t\xc6\xd8@\xbb\xbf\xc8', b'parents': [ b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A', b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' ] } ] $ cat .hg/blackbox.log *> cacher constructed for manifestdata (glob) *> cache miss for 47abb8efa5f01b8964d74917793ad2464db0fa2c (glob) *> storing cache entry for 47abb8efa5f01b8964d74917793ad2464db0fa2c (glob) *> cacher constructed for manifestdata (glob) *> cache hit for 47abb8efa5f01b8964d74917793ad2464db0fa2c (glob) *> cacher constructed for manifestdata (glob) *> cache miss for 37326a83e9843f15161fce9d1e92d06b795d5e8e (glob) *> storing cache entry for 37326a83e9843f15161fce9d1e92d06b795d5e8e (glob) $ cat error.log $ killdaemons.py $ rm .hg/blackbox.log Try with object caching mode $ cat >> .hg/hgrc << EOF > [simplecache] > cacheobjects = true > EOF $ hg serve -p $HGPORT -d --pid-file hg.pid -E error.log $ cat hg.pid > $DAEMON_PIDS $ sendhttpv2peer << EOF > command manifestdata > nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41'] > tree eval:b'' > fields eval:[b'parents'] > EOF creating http peer for wire protocol version 2 sending manifestdata command response: gen[ { b'totalitems': 1 }, { b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A', b'parents': [ b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' ] } ] $ sendhttpv2peer << EOF > command manifestdata > nodes eval:[b'\x99\x2f\x47\x79\x02\x9a\x3d\xf8\xd0\x66\x6d\x00\xbb\x92\x4f\x69\x63\x4e\x26\x41'] > tree eval:b'' > fields eval:[b'parents'] > EOF creating http peer for wire protocol version 2 sending manifestdata command response: gen[ { b'totalitems': 1 }, { b'node': b'\x99/Gy\x02\x9a=\xf8\xd0fm\x00\xbb\x92OicN&A', b'parents': [ b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' ] } ] $ cat .hg/blackbox.log *> cacher constructed for manifestdata (glob) *> cache miss for 47abb8efa5f01b8964d74917793ad2464db0fa2c (glob) *> storing cache entry for 47abb8efa5f01b8964d74917793ad2464db0fa2c (glob) *> cacher constructed for manifestdata (glob) *> cache hit for 47abb8efa5f01b8964d74917793ad2464db0fa2c (glob) $ cat error.log $ killdaemons.py $ rm .hg/blackbox.log A non-cacheable command does not instantiate cacher $ hg serve -p $HGPORT -d --pid-file hg.pid -E error.log $ cat hg.pid > $DAEMON_PIDS $ sendhttpv2peer << EOF > command capabilities > EOF creating http peer for wire protocol version 2 sending capabilities command response: gen[ { b'commands': { b'branchmap': { b'args': {}, b'permissions': [ b'pull' ] }, b'capabilities': { b'args': {}, b'permissions': [ b'pull' ] }, b'changesetdata': { b'args': { b'fields': { b'default': set([]), b'required': False, b'type': b'set', b'validvalues': set([ b'bookmarks', b'parents', b'phase', b'revision' ]) }, b'revisions': { b'required': True, b'type': b'list' } }, b'permissions': [ b'pull' ] }, b'filedata': { b'args': { b'fields': { b'default': set([]), b'required': False, b'type': b'set', b'validvalues': set([ b'linknode', b'parents', b'revision' ]) }, b'haveparents': { b'default': False, b'required': False, b'type': b'bool' }, b'nodes': { b'required': True, b'type': b'list' }, b'path': { b'required': True, b'type': b'bytes' } }, b'permissions': [ b'pull' ] }, b'filesdata': { b'args': { b'fields': { b'default': set([]), b'required': False, b'type': b'set', b'validvalues': set([ b'firstchangeset', b'linknode', b'parents', b'revision' ]) }, b'haveparents': { b'default': False, b'required': False, b'type': b'bool' }, b'pathfilter': { b'default': None, b'required': False, b'type': b'dict' }, b'revisions': { b'required': True, b'type': b'list' } }, b'permissions': [ b'pull' ], b'recommendedbatchsize': 50000 }, b'heads': { b'args': { b'publiconly': { b'default': False, b'required': False, b'type': b'bool' } }, b'permissions': [ b'pull' ] }, b'known': { b'args': { b'nodes': { b'default': [], b'required': False, b'type': b'list' } }, b'permissions': [ b'pull' ] }, b'listkeys': { b'args': { b'namespace': { b'required': True, b'type': b'bytes' } }, b'permissions': [ b'pull' ] }, b'lookup': { b'args': { b'key': { b'required': True, b'type': b'bytes' } }, b'permissions': [ b'pull' ] }, b'manifestdata': { b'args': { b'fields': { b'default': set([]), b'required': False, b'type': b'set', b'validvalues': set([ b'parents', b'revision' ]) }, b'haveparents': { b'default': False, b'required': False, b'type': b'bool' }, b'nodes': { b'required': True, b'type': b'list' }, b'tree': { b'required': True, b'type': b'bytes' } }, b'permissions': [ b'pull' ], b'recommendedbatchsize': 100000 }, b'pushkey': { b'args': { b'key': { b'required': True, b'type': b'bytes' }, b'namespace': { b'required': True, b'type': b'bytes' }, b'new': { b'required': True, b'type': b'bytes' }, b'old': { b'required': True, b'type': b'bytes' } }, b'permissions': [ b'push' ] }, b'rawstorefiledata': { b'args': { b'files': { b'required': True, b'type': b'list' }, b'pathfilter': { b'default': None, b'required': False, b'type': b'list' } }, b'permissions': [ b'pull' ] } }, b'framingmediatypes': [ b'application/mercurial-exp-framing-0006' ], b'pathfilterprefixes': set([ b'path:', b'rootfilesin:' ]), b'rawrepoformats': [ b'generaldelta', b'revlogv1', b'sparserevlog' ] } ] $ test -f .hg/blackbox.log [1] An error is not cached $ sendhttpv2peer << EOF > command manifestdata > nodes eval:[b'\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa'] > tree eval:b'' > fields eval:[b'parents'] > EOF creating http peer for wire protocol version 2 sending manifestdata command abort: unknown node: \xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa! (esc) [255] $ cat .hg/blackbox.log *> cacher constructed for manifestdata (glob) *> cache miss for 2cba2a7d0d1575fea2fe68f597e97a7c2ac2f705 (glob) *> cacher exiting due to error (glob) $ killdaemons.py $ rm .hg/blackbox.log