Mercurial > hg
view tests/test-setdiscovery.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 | eec20025ada3 |
children | 607a0de9bae3 |
line wrap: on
line source
Function to test discovery between two repos in both directions, using both the local shortcut (which is currently not activated by default) and the full remotable protocol: $ testdesc() { # revs_a, revs_b, dagdesc > if [ -d foo ]; then rm -rf foo; fi > hg init foo > cd foo > hg debugbuilddag "$3" > hg clone . a $1 --quiet > hg clone . b $2 --quiet > echo > echo "% -- a -> b tree" > hg -R a debugdiscovery b --verbose --old > echo > echo "% -- a -> b set" > hg -R a debugdiscovery b --verbose --debug --config progress.debug=true > echo > echo "% -- a -> b set (tip only)" > hg -R a debugdiscovery b --verbose --debug --config progress.debug=true --rev tip > echo > echo "% -- b -> a tree" > hg -R b debugdiscovery a --verbose --old > echo > echo "% -- b -> a set" > hg -R b debugdiscovery a --verbose --debug --config progress.debug=true > echo > echo "% -- b -> a set (tip only)" > hg -R b debugdiscovery a --verbose --debug --config progress.debug=true --rev tip > cd .. > } Small superset: $ testdesc '-ra1 -ra2' '-rb1 -rb2 -rb3' ' > +2:f +1:a1:b1 > <f +4 :a2 > +5 :b2 > <f +3 :b3' % -- a -> b tree comparing with b searching for changes unpruned common: 01241442b3c2 66f7d451a68b b5714e113bc0 elapsed time: * seconds (glob) heads summary: total common heads: 2 also local heads: 2 also remote heads: 1 local heads: 2 common: 2 missing: 0 remote heads: 3 common: 1 unknown: 2 local changesets: 7 common: 7 missing: 0 common heads: 01241442b3c2 b5714e113bc0 % -- a -> b set comparing with b query 1; heads searching for changes all local heads known remotely elapsed time: * seconds (glob) heads summary: total common heads: 2 also local heads: 2 also remote heads: 1 local heads: 2 common: 2 missing: 0 remote heads: 3 common: 1 unknown: 2 local changesets: 7 common: 7 missing: 0 common heads: 01241442b3c2 b5714e113bc0 % -- a -> b set (tip only) comparing with b query 1; heads searching for changes all local heads known remotely elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 1 also remote heads: 0 local heads: 2 common: 1 missing: 1 remote heads: 3 common: 0 unknown: 3 local changesets: 7 common: 6 missing: 1 common heads: b5714e113bc0 % -- b -> a tree comparing with a searching for changes unpruned common: 01241442b3c2 b5714e113bc0 elapsed time: * seconds (glob) heads summary: total common heads: 2 also local heads: 1 also remote heads: 2 local heads: 3 common: 1 missing: 2 remote heads: 2 common: 2 unknown: 0 local changesets: 15 common: 7 missing: 8 common heads: 01241442b3c2 b5714e113bc0 % -- b -> a set comparing with a query 1; heads searching for changes all remote heads known locally elapsed time: * seconds (glob) heads summary: total common heads: 2 also local heads: 1 also remote heads: 2 local heads: 3 common: 1 missing: 2 remote heads: 2 common: 2 unknown: 0 local changesets: 15 common: 7 missing: 8 common heads: 01241442b3c2 b5714e113bc0 % -- b -> a set (tip only) comparing with a query 1; heads searching for changes all remote heads known locally elapsed time: * seconds (glob) heads summary: total common heads: 2 also local heads: 1 also remote heads: 2 local heads: 3 common: 1 missing: 2 remote heads: 2 common: 2 unknown: 0 local changesets: 15 common: 7 missing: 8 common heads: 01241442b3c2 b5714e113bc0 Many new: $ testdesc '-ra1 -ra2' '-rb' ' > +2:f +3:a1 +3:b > <f +30 :a2' % -- a -> b tree comparing with b searching for changes unpruned common: bebd167eb94d elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 1 also remote heads: 0 local heads: 2 common: 1 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 35 common: 5 missing: 30 common heads: bebd167eb94d % -- a -> b set comparing with b query 1; heads searching for changes taking initial sample searching: 2 queries query 2; still undecided: 29, sample size is: 29 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 1 also remote heads: 0 local heads: 2 common: 1 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 35 common: 5 missing: 30 common heads: bebd167eb94d % -- a -> b set (tip only) comparing with b query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 31, sample size is: 31 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 2 common: 0 missing: 2 remote heads: 1 common: 0 unknown: 1 local changesets: 35 common: 2 missing: 33 common heads: 66f7d451a68b % -- b -> a tree comparing with a searching for changes unpruned common: 66f7d451a68b bebd167eb94d elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 1 local heads: 1 common: 0 missing: 1 remote heads: 2 common: 1 unknown: 1 local changesets: 8 common: 5 missing: 3 common heads: bebd167eb94d % -- b -> a set comparing with a query 1; heads searching for changes taking initial sample searching: 2 queries query 2; still undecided: 2, sample size is: 2 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 1 local heads: 1 common: 0 missing: 1 remote heads: 2 common: 1 unknown: 1 local changesets: 8 common: 5 missing: 3 common heads: bebd167eb94d % -- b -> a set (tip only) comparing with a query 1; heads searching for changes taking initial sample searching: 2 queries query 2; still undecided: 2, sample size is: 2 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 1 local heads: 1 common: 0 missing: 1 remote heads: 2 common: 1 unknown: 1 local changesets: 8 common: 5 missing: 3 common heads: bebd167eb94d Both sides many new with stub: $ testdesc '-ra1 -ra2' '-rb' ' > +2:f +2:a1 +30 :b > <f +30 :a2' % -- a -> b tree comparing with b searching for changes unpruned common: 2dc09a01254d elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 1 also remote heads: 0 local heads: 2 common: 1 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 34 common: 4 missing: 30 common heads: 2dc09a01254d % -- a -> b set comparing with b query 1; heads searching for changes taking initial sample searching: 2 queries query 2; still undecided: 29, sample size is: 29 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 1 also remote heads: 0 local heads: 2 common: 1 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 34 common: 4 missing: 30 common heads: 2dc09a01254d % -- a -> b set (tip only) comparing with b query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 31, sample size is: 31 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 2 common: 0 missing: 2 remote heads: 1 common: 0 unknown: 1 local changesets: 34 common: 2 missing: 32 common heads: 66f7d451a68b % -- b -> a tree comparing with a searching for changes unpruned common: 2dc09a01254d 66f7d451a68b elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 1 local heads: 1 common: 0 missing: 1 remote heads: 2 common: 1 unknown: 1 local changesets: 34 common: 4 missing: 30 common heads: 2dc09a01254d % -- b -> a set comparing with a query 1; heads searching for changes taking initial sample searching: 2 queries query 2; still undecided: 29, sample size is: 29 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 1 local heads: 1 common: 0 missing: 1 remote heads: 2 common: 1 unknown: 1 local changesets: 34 common: 4 missing: 30 common heads: 2dc09a01254d % -- b -> a set (tip only) comparing with a query 1; heads searching for changes taking initial sample searching: 2 queries query 2; still undecided: 29, sample size is: 29 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 1 local heads: 1 common: 0 missing: 1 remote heads: 2 common: 1 unknown: 1 local changesets: 34 common: 4 missing: 30 common heads: 2dc09a01254d Both many new: $ testdesc '-ra' '-rb' ' > +2:f +30 :b > <f +30 :a' % -- a -> b tree comparing with b searching for changes unpruned common: 66f7d451a68b elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 32 common: 2 missing: 30 common heads: 66f7d451a68b % -- a -> b set comparing with b query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 31, sample size is: 31 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 32 common: 2 missing: 30 common heads: 66f7d451a68b % -- a -> b set (tip only) comparing with b query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 31, sample size is: 31 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 32 common: 2 missing: 30 common heads: 66f7d451a68b % -- b -> a tree comparing with a searching for changes unpruned common: 66f7d451a68b elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 32 common: 2 missing: 30 common heads: 66f7d451a68b % -- b -> a set comparing with a query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 31, sample size is: 31 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 32 common: 2 missing: 30 common heads: 66f7d451a68b % -- b -> a set (tip only) comparing with a query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 31, sample size is: 31 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 32 common: 2 missing: 30 common heads: 66f7d451a68b Both many new skewed: $ testdesc '-ra' '-rb' ' > +2:f +30 :b > <f +50 :a' % -- a -> b tree comparing with b searching for changes unpruned common: 66f7d451a68b elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 52 common: 2 missing: 50 common heads: 66f7d451a68b % -- a -> b set comparing with b query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 51, sample size is: 51 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 52 common: 2 missing: 50 common heads: 66f7d451a68b % -- a -> b set (tip only) comparing with b query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 51, sample size is: 51 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 52 common: 2 missing: 50 common heads: 66f7d451a68b % -- b -> a tree comparing with a searching for changes unpruned common: 66f7d451a68b elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 32 common: 2 missing: 30 common heads: 66f7d451a68b % -- b -> a set comparing with a query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 31, sample size is: 31 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 32 common: 2 missing: 30 common heads: 66f7d451a68b % -- b -> a set (tip only) comparing with a query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 31, sample size is: 31 2 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 32 common: 2 missing: 30 common heads: 66f7d451a68b Both many new on top of long history: $ testdesc '-ra' '-rb' ' > +1000:f +30 :b > <f +50 :a' % -- a -> b tree comparing with b searching for changes unpruned common: 7ead0cba2838 elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 1050 common: 1000 missing: 50 common heads: 7ead0cba2838 % -- a -> b set comparing with b query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 1049, sample size is: 11 sampling from both directions searching: 3 queries query 3; still undecided: 31, sample size is: 31 3 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 1050 common: 1000 missing: 50 common heads: 7ead0cba2838 % -- a -> b set (tip only) comparing with b query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 1049, sample size is: 11 sampling from both directions searching: 3 queries query 3; still undecided: 31, sample size is: 31 3 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 1050 common: 1000 missing: 50 common heads: 7ead0cba2838 % -- b -> a tree comparing with a searching for changes unpruned common: 7ead0cba2838 elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 1030 common: 1000 missing: 30 common heads: 7ead0cba2838 % -- b -> a set comparing with a query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 1029, sample size is: 11 sampling from both directions searching: 3 queries query 3; still undecided: 15, sample size is: 15 3 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 1030 common: 1000 missing: 30 common heads: 7ead0cba2838 % -- b -> a set (tip only) comparing with a query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 1029, sample size is: 11 sampling from both directions searching: 3 queries query 3; still undecided: 15, sample size is: 15 3 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 1 common: 0 missing: 1 remote heads: 1 common: 0 unknown: 1 local changesets: 1030 common: 1000 missing: 30 common heads: 7ead0cba2838 One with >200 heads, which used to use up all of the sample: $ hg init manyheads $ cd manyheads $ echo "+300:r @a" >dagdesc $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads $ echo "@b *r+3" >>dagdesc # one more head $ hg debugbuilddag <dagdesc reading DAG from stdin $ hg heads -t --template . | wc -c \s*261 (re) $ hg clone -b a . a adding changesets adding manifests adding file changes added 1340 changesets with 0 changes to 0 files (+259 heads) new changesets 1ea73414a91b:1c51e2c80832 updating to branch a 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone -b b . b adding changesets adding manifests adding file changes added 304 changesets with 0 changes to 0 files new changesets 1ea73414a91b:513314ca8b3a updating to branch b 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R a debugdiscovery b --debug --verbose --config progress.debug=true comparing with b query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 1240, sample size is: 100 sampling from both directions searching: 3 queries query 3; still undecided: 1140, sample size is: 200 sampling from both directions searching: 4 queries query 4; still undecided: \d+, sample size is: 200 (re) sampling from both directions searching: 5 queries query 5; still undecided: \d+, sample size is: 200 (re) sampling from both directions searching: 6 queries query 6; still undecided: \d+, sample size is: \d+ (re) 6 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 260 common: 0 missing: 260 remote heads: 1 common: 0 unknown: 1 local changesets: 1340 common: 300 missing: 1040 common heads: 3ee37d65064a $ hg -R a debugdiscovery b --debug --verbose --config progress.debug=true --rev tip comparing with b query 1; heads searching for changes taking quick initial sample searching: 2 queries query 2; still undecided: 303, sample size is: 9 sampling from both directions searching: 3 queries query 3; still undecided: 3, sample size is: 3 3 total queries in *.????s (glob) elapsed time: * seconds (glob) heads summary: total common heads: 1 also local heads: 0 also remote heads: 0 local heads: 260 common: 0 missing: 260 remote heads: 1 common: 0 unknown: 1 local changesets: 1340 common: 300 missing: 1040 common heads: 3ee37d65064a Test actual protocol when pulling one new head in addition to common heads $ hg clone -U b c $ hg -R c id -ir tip 513314ca8b3a $ hg -R c up -qr default $ touch c/f $ hg -R c ci -Aqm "extra head" $ hg -R c id -i e64a39e7da8b $ hg serve -R c -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log $ cat hg.pid >> $DAEMON_PIDS $ hg -R b incoming http://localhost:$HGPORT/ -T '{node|short}\n' comparing with http://localhost:$HGPORT/ searching for changes e64a39e7da8b $ killdaemons.py $ cut -d' ' -f6- access.log | grep -v cmd=known # cmd=known uses random sampling "GET /?cmd=capabilities HTTP/1.1" 200 - "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D513314ca8b3ae4dac8eec56966265b00fcf866db x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:$USUAL_BUNDLE_CAPS$&cg=1&common=513314ca8b3ae4dac8eec56966265b00fcf866db&heads=e64a39e7da8b0d54bc63e81169aff001c13b3477 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull $ cat errors.log $ cd .. Issue 4438 - test coverage for 3ef893520a85 issues. $ mkdir issue4438 $ cd issue4438 #if false generate new bundles: $ hg init r1 $ for i in `"$PYTHON" $TESTDIR/seq.py 101`; do hg -R r1 up -qr null && hg -R r1 branch -q b$i && hg -R r1 ci -qmb$i; done $ hg clone -q r1 r2 $ for i in `"$PYTHON" $TESTDIR/seq.py 10`; do hg -R r1 up -qr null && hg -R r1 branch -q c$i && hg -R r1 ci -qmc$i; done $ hg -R r2 branch -q r2change && hg -R r2 ci -qmr2change $ hg -R r1 bundle -qa $TESTDIR/bundles/issue4438-r1.hg $ hg -R r2 bundle -qa $TESTDIR/bundles/issue4438-r2.hg #else use existing bundles: $ hg init r1 $ hg -R r1 -q unbundle $TESTDIR/bundles/issue4438-r1.hg $ hg -R r1 -q up $ hg init r2 $ hg -R r2 -q unbundle $TESTDIR/bundles/issue4438-r2.hg $ hg -R r2 -q up #endif Set iteration order could cause wrong and unstable results - fixed in 73cfaa348650: $ hg -R r1 outgoing r2 -T'{rev} ' comparing with r2 searching for changes 101 102 103 104 105 106 107 108 109 110 (no-eol) The case where all the 'initialsamplesize' samples already were common would give 'all remote heads known locally' without checking the remaining heads - fixed in 86c35b7ae300: $ cat >> $TESTTMP/unrandomsample.py << EOF > import random > def sample(population, k): > return sorted(population)[:k] > random.sample = sample > EOF $ cat >> r1/.hg/hgrc << EOF > [extensions] > unrandomsample = $TESTTMP/unrandomsample.py > EOF $ hg -R r1 outgoing r2 -T'{rev} ' --config extensions.blackbox= \ > --config blackbox.track='command commandfinish discovery' comparing with r2 searching for changes 101 102 103 104 105 106 107 108 109 110 (no-eol) $ hg -R r1 --config extensions.blackbox= blackbox --config blackbox.track= * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> serve --cmdserver chgunix * (glob) (chg !) * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* (glob) * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> found 101 common and 1 unknown server heads, 2 roundtrips in *.????s (glob) * @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* exited 0 after *.?? seconds (glob) $ cd ..