rust-format: pin the formatted to a specific nightly version Version 1.50 change the way rust-format behave. We pin the version for now, we can figure out something better later.

copies: clarify the return of _merge_copies_dict I misused that function twice in the past few days, so lets clarify the API. Differential Revision: https://phab.mercurial-scm.org/D9418

copies: avoid unwanted side effect from one branch to another Without this copy, change in a one descendant branch (With "remove" change only) could affect computation on another descendant branches. This was not caugh by the test because the test graph are "too simple". I started writing more test in that regards, but I a submitting this changes earlier because I want to get more code landed to allow other optimisation work to happens. Differential Revision: https://phab.mercurial-scm.org/D9416

rhg: use `format_bytes!` for error messages This change also includes a formatting changing with the new `rustfmt` version, but I'm expecting it to have already been applied in another patch by the time this lands. Differential Revision: https://phab.mercurial-scm.org/D9407

packaging: don't use plain 'python' if another python has been specified Before this change, packaging on CentOS 8 failed because 'python' is used instead of 'python3'. Change was tested with: - make docker-centos7 - make docker-centos8 - make docker-ubuntu-bionic Differential Revision: https://phab.mercurial-scm.org/D9464

packaging: add pygit2 to the py3 Windows installers This is needed to be able to use the git extension. The extension no longer complains about the library being not installed, but `hg log -r .` on a repo that works in WSL yielded a TypeError: ... File "mercurial.hg", line 188, in _peerorrepo File "mercurial.localrepo", line 3224, in instance File "mercurial.localrepo", line 623, in makelocalrepository File "hgext.git", line 117, in _makestore File "hgext.git", line 48, in __init__ TypeError: Repository unable to unpack backend. Differential Revision: https://phab.mercurial-scm.org/D9405

upgrade: directly use the upgrade action constant This make the code simpler and will make it simpler to add more case in the future. Differential Revision: https://phab.mercurial-scm.org/D9467

upgrade: rename UPGRADE_FILELOG to UPGRADE_FILELOGS They are multiple filelog to upgrade, so this seems more accurate. Differential Revision: https://phab.mercurial-scm.org/D9466

bisect: add `-G` to an `hg log` command in a test This helps readers see what shape of DAG to expect Differential Revision: https://phab.mercurial-scm.org/D9373

bisect: refactor to work on a list of revspecs This will allow adding a `--rev` flag that can be passed more than once. Differential Revision: https://phab.mercurial-scm.org/D9372

copies: simplify the call to _merge_copies_dict Let's get the argument into the right order, then call the function once. Differential Revision: https://phab.mercurial-scm.org/D9417

copies: fast path no-op merge If the two sides of the merge are the same (they come an unaltered common ancestors) we don't need any merging. Differential Revision: https://phab.mercurial-scm.org/D9415

copies-rust: encapsulate internal sets on `changes` The goal is to eventually stop creating the underlying set. So we need to encapsulate the call first. Differential Revision: https://phab.mercurial-scm.org/D9306

copies-rust: pre-indent some code to clarify the next patch The next patch will need this new indentation, having it done explicitly beforehand makes that next patch clearer. Differential Revision: https://phab.mercurial-scm.org/D9305

copies-rust: combine the iteration over remove and copies into one In the underlying data, the copies information and the removal information are interleaved. And in the consumer code, the consumption could be interleaved too. So, we make the processing closer to the underlying data by fusing the two iterators into one. Later, we will directly consume the underlying data and that logic to combine the two iterators will be unnecessary. Differential Revision: https://phab.mercurial-scm.org/D9304

copies-rust: move is_ancestor caching within the rust code Now that the OrdMap merging is fast, smaller things start to matters. We move the caching of `is_ancestor` call within the Rust code. This avoid round-trip to Python and help us to shave more time on our slower case: Repo Cases Source-Rev Dest-Rev Old-Time New-Time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 2.780174 s, 2.137894 s, -0.642280 s, × 0.7690 mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 9.843481 s, 8.100385 s, -1.743096 s, × 0.8229 Note: I would happily have used native code for ancestors computation, however I failed (did not tried hard) to created a rust version that goes as fast as the current C version. Below are full tables for: - this change compared to the previous change - this change compared to filelog performance Repo Cases Source-Rev Dest-Rev Old-Time New-Time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ mercurial x_revs_x_added_0_copies ad6b123de1c7 39cfcef4f463 : 0.000049 s, 0.000047 s, -0.000002 s, × 0.9592 mercurial x_revs_x_added_x_copies 2b1c78674230 0c1d10351869 : 0.000182 s, 0.000181 s, -0.000001 s, × 0.9945 mercurial x000_revs_x000_added_x_copies 81f8ff2a9bf2 dd3267698d84 : 0.005872 s, 0.005852 s, -0.000020 s, × 0.9966 pypy x_revs_x_added_0_copies aed021ee8ae8 099ed31b181b : 0.000229 s, 0.000229 s, +0.000000 s, × 1.0000 pypy x_revs_x000_added_0_copies 4aa4e1f8e19a 359343b9ac0e : 0.000058 s, 0.000058 s, +0.000000 s, × 1.0000 pypy x_revs_x_added_x_copies ac52eb7bbbb0 72e022663155 : 0.000148 s, 0.000146 s, -0.000002 s, × 0.9865 pypy x_revs_x00_added_x_copies c3b14617fbd7 ace7255d9a26 : 0.001205 s, 0.001206 s, +0.000001 s, × 1.0008 pypy x_revs_x000_added_x000_copies df6f7a526b60 a83dc6a2d56f : 0.025662 s, 0.025275 s, -0.000387 s, × 0.9849 pypy x000_revs_xx00_added_0_copies 89a76aede314 2f22446ff07e : 0.080113 s, 0.080303 s, +0.000190 s, × 1.0024 pypy x000_revs_x000_added_x_copies 8a3b5bfd266e 2c68e87c3efe : 0.153030 s, 0.152641 s, -0.000389 s, × 0.9975 pypy x000_revs_x000_added_x000_copies 89a76aede314 7b3dda341c84 : 0.098774 s, 0.099107 s, +0.000333 s, × 1.0034 pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 2.780174 s, 2.137894 s, -0.642280 s, × 0.7690 pypy x0000_revs_xx000_added_0_copies bf2c629d0071 4ffed77c095c : 0.022218 s, 0.022202 s, -0.000016 s, × 0.9993 pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 0.252125 s, 0.228946 s, -0.023179 s, × 0.9081 netbeans x_revs_x_added_0_copies fb0955ffcbcd a01e9239f9e7 : 0.000186 s, 0.000186 s, +0.000000 s, × 1.0000 netbeans x_revs_x000_added_0_copies 6f360122949f 20eb231cc7d0 : 0.000133 s, 0.000133 s, +0.000000 s, × 1.0000 netbeans x_revs_x_added_x_copies 1ada3faf6fb6 5a39d12eecf4 : 0.000320 s, 0.000320 s, +0.000000 s, × 1.0000 netbeans x_revs_x00_added_x_copies 35be93ba1e2c 9eec5e90c05f : 0.001336 s, 0.001339 s, +0.000003 s, × 1.0022 netbeans x000_revs_xx00_added_0_copies eac3045b4fdd 51d4ae7f1290 : 0.015573 s, 0.015694 s, +0.000121 s, × 1.0078 netbeans x000_revs_x000_added_x_copies e2063d266acd 6081d72689dc : 0.018667 s, 0.018457 s, -0.000210 s, × 0.9888 netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 0.112534 s, 0.111691 s, -0.000843 s, × 0.9925 netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : 1.231869 s, 1.166017 s, -0.065852 s, × 0.9465 mozilla-central x_revs_x_added_0_copies 3697f962bb7b 7015fcdd43a2 : 0.000197 s, 0.000197 s, +0.000000 s, × 1.0000 mozilla-central x_revs_x000_added_0_copies dd390860c6c9 40d0c5bed75d : 0.000637 s, 0.000626 s, -0.000011 s, × 0.9827 mozilla-central x_revs_x_added_x_copies 8d198483ae3b 14207ffc2b2f : 0.000303 s, 0.000303 s, +0.000000 s, × 1.0000 mozilla-central x_revs_x00_added_x_copies 98cbc58cc6bc 446a150332c3 : 0.001663 s, 0.001679 s, +0.000016 s, × 1.0096 mozilla-central x_revs_x000_added_x000_copies 3c684b4b8f68 0a5e72d1b479 : 0.007008 s, 0.006947 s, -0.000061 s, × 0.9913 mozilla-central x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.127385 s, 0.133070 s, +0.005685 s, × 1.0446 mozilla-central x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.008740 s, 0.008705 s, -0.000035 s, × 0.9960 mozilla-central x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.005783 s, 0.005913 s, +0.000130 s, × 1.0225 mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 0.102184 s, 0.101373 s, -0.000811 s, × 0.9921 mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.046220 s, 0.046526 s, +0.000306 s, × 1.0066 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 0.315271 s, 0.313954 s, -0.001317 s, × 0.9958 mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : 3.478747 s, 3.367395 s, -0.111352 s, × 0.9680 mozilla-central x00000_revs_x00000_added_x000_copies 76caed42cf7c 1daa622bbe42 : 4.766435 s, 4.691820 s, -0.074615 s, × 0.9843 mozilla-try x_revs_x_added_0_copies aaf6dde0deb8 9790f499805a : 0.001214 s, 0.001199 s, -0.000015 s, × 0.9876 mozilla-try x_revs_x000_added_0_copies d8d0222927b4 5bb8ce8c7450 : 0.001221 s, 0.001216 s, -0.000005 s, × 0.9959 mozilla-try x_revs_x_added_x_copies 092fcca11bdb 936255a0384a : 0.000613 s, 0.000613 s, +0.000000 s, × 1.0000 mozilla-try x_revs_x00_added_x_copies b53d2fadbdb5 017afae788ec : 0.001904 s, 0.001906 s, +0.000002 s, × 1.0011 mozilla-try x_revs_x000_added_x000_copies 20408ad61ce5 6f0ee96e21ad : 0.093000 s, 0.092766 s, -0.000234 s, × 0.9975 mozilla-try x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.132194 s, 0.136074 s, +0.003880 s, × 1.0294 mozilla-try x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.009069 s, 0.009067 s, -0.000002 s, × 0.9998 mozilla-try x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.006169 s, 0.006243 s, +0.000074 s, × 1.0120 mozilla-try x000_revs_x000_added_x000_copies 1346fd0130e4 4c65cbdabc1f : 0.115540 s, 0.114463 s, -0.001077 s, × 0.9907 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 0.435381 s, 0.433683 s, -0.001698 s, × 0.9961 mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 0.415461 s, 0.411278 s, -0.004183 s, × 0.9899 mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 0.155946 s, 0.155133 s, -0.000813 s, × 0.9948 mozilla-try x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.048521 s, 0.048933 s, +0.000412 s, × 1.0085 mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 9.843481 s, 8.100385 s, -1.743096 s, × 0.8229 mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : 1.465128 s, 1.446720 s, -0.018408 s, × 0.9874 mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 1.374283 s, 1.369537 s, -0.004746 s, × 0.9965 mozilla-try x00000_revs_x0000_added_x0000_copies 8d3fafa80d4b eb884023b810 : 5.255158 s, 5.186079 s, -0.069079 s, × 0.9869 Repo Case Source-Rev Dest-Rev filelog sidedata Difference Factor -------------------------------------------------------------------------------------------------------------------------------------- mercurial x_revs_x_added_0_copies ad6b123de1c7 39cfcef4f463 : 0.000892 s, 0.000047 s, -0.000845 s, × 0.052691 mercurial x_revs_x_added_x_copies 2b1c78674230 0c1d10351869 : 0.001823 s, 0.000181 s, -0.001642 s, × 0.099287 mercurial x000_revs_x000_added_x_copies 81f8ff2a9bf2 dd3267698d84 : 0.018063 s, 0.005852 s, -0.012211 s, × 0.323977 pypy x_revs_x_added_0_copies aed021ee8ae8 099ed31b181b : 0.001505 s, 0.000229 s, -0.001276 s, × 0.152159 pypy x_revs_x000_added_0_copies 4aa4e1f8e19a 359343b9ac0e : 0.205895 s, 0.000058 s, -0.205837 s, × 0.000282 pypy x_revs_x_added_x_copies ac52eb7bbbb0 72e022663155 : 0.017021 s, 0.000146 s, -0.016875 s, × 0.008578 pypy x_revs_x00_added_x_copies c3b14617fbd7 ace7255d9a26 : 0.019422 s, 0.001206 s, -0.018216 s, × 0.062095 pypy x_revs_x000_added_x000_copies df6f7a526b60 a83dc6a2d56f : 0.767740 s, 0.025275 s, -0.742465 s, × 0.032921 pypy x000_revs_xx00_added_0_copies 89a76aede314 2f22446ff07e : 1.188515 s, 0.080303 s, -1.108212 s, × 0.067566 pypy x000_revs_x000_added_x_copies 8a3b5bfd266e 2c68e87c3efe : 1.251968 s, 0.152641 s, -1.099327 s, × 0.121921 pypy x000_revs_x000_added_x000_copies 89a76aede314 7b3dda341c84 : 1.616799 s, 0.099107 s, -1.517692 s, × 0.061298 pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 0.001057 s, 2.137894 s, +2.136837 s, × 2022.605487 pypy x0000_revs_xx000_added_0_copies bf2c629d0071 4ffed77c095c : 1.069485 s, 0.022202 s, -1.047283 s, × 0.020760 pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 1.350162 s, 0.228946 s, -1.121216 s, × 0.169569 netbeans x_revs_x_added_0_copies fb0955ffcbcd a01e9239f9e7 : 0.028008 s, 0.000186 s, -0.027822 s, × 0.006641 netbeans x_revs_x000_added_0_copies 6f360122949f 20eb231cc7d0 : 0.132281 s, 0.000133 s, -0.132148 s, × 0.001005 netbeans x_revs_x_added_x_copies 1ada3faf6fb6 5a39d12eecf4 : 0.025311 s, 0.000320 s, -0.024991 s, × 0.012643 netbeans x_revs_x00_added_x_copies 35be93ba1e2c 9eec5e90c05f : 0.052957 s, 0.001339 s, -0.051618 s, × 0.025285 netbeans x000_revs_xx00_added_0_copies eac3045b4fdd 51d4ae7f1290 : 0.038011 s, 0.015694 s, -0.022317 s, × 0.412880 netbeans x000_revs_x000_added_x_copies e2063d266acd 6081d72689dc : 0.198639 s, 0.018457 s, -0.180182 s, × 0.092917 netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 0.955713 s, 0.111691 s, -0.844022 s, × 0.116867 netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : 3.838886 s, 1.166017 s, -2.672869 s, × 0.303738 mozilla-central x_revs_x_added_0_copies 3697f962bb7b 7015fcdd43a2 : 0.024548 s, 0.000197 s, -0.024351 s, × 0.008025 mozilla-central x_revs_x000_added_0_copies dd390860c6c9 40d0c5bed75d : 0.143394 s, 0.000626 s, -0.142768 s, × 0.004366 mozilla-central x_revs_x_added_x_copies 8d198483ae3b 14207ffc2b2f : 0.026046 s, 0.000303 s, -0.025743 s, × 0.011633 mozilla-central x_revs_x00_added_x_copies 98cbc58cc6bc 446a150332c3 : 0.085440 s, 0.001679 s, -0.083761 s, × 0.019651 mozilla-central x_revs_x000_added_x000_copies 3c684b4b8f68 0a5e72d1b479 : 0.195656 s, 0.006947 s, -0.188709 s, × 0.035506 mozilla-central x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 2.190874 s, 0.133070 s, -2.057804 s, × 0.060738 mozilla-central x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.090208 s, 0.008705 s, -0.081503 s, × 0.096499 mozilla-central x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.747367 s, 0.005913 s, -0.741454 s, × 0.007912 mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 1.152863 s, 0.101373 s, -1.051490 s, × 0.087932 mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 6.598336 s, 0.046526 s, -6.551810 s, × 0.007051 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 3.255015 s, 0.313954 s, -2.941061 s, × 0.096452 mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : 15.668041 s, 3.367395 s, -12.300646 s, × 0.214921 mozilla-central x00000_revs_x00000_added_x000_copies 76caed42cf7c 1daa622bbe42 : 20.439638 s, 4.691820 s, -15.747818 s, × 0.229545 mozilla-try x_revs_x_added_0_copies aaf6dde0deb8 9790f499805a : 0.080923 s, 0.001199 s, -0.079724 s, × 0.014817 mozilla-try x_revs_x000_added_0_copies d8d0222927b4 5bb8ce8c7450 : 0.498456 s, 0.001216 s, -0.497240 s, × 0.002440 mozilla-try x_revs_x_added_x_copies 092fcca11bdb 936255a0384a : 0.020798 s, 0.000613 s, -0.020185 s, × 0.029474 mozilla-try x_revs_x00_added_x_copies b53d2fadbdb5 017afae788ec : 0.226930 s, 0.001906 s, -0.225024 s, × 0.008399 mozilla-try x_revs_x000_added_x000_copies 20408ad61ce5 6f0ee96e21ad : 1.113005 s, 0.092766 s, -1.020239 s, × 0.083347 mozilla-try x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 2.230671 s, 0.136074 s, -2.094597 s, × 0.061001 mozilla-try x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.089672 s, 0.009067 s, -0.080605 s, × 0.101113 mozilla-try x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.740221 s, 0.006243 s, -0.733978 s, × 0.008434 mozilla-try x000_revs_x000_added_x000_copies 1346fd0130e4 4c65cbdabc1f : 1.185881 s, 0.114463 s, -1.071418 s, × 0.096521 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 0.086072 s, 0.433683 s, +0.347611 s, × 5.038607 mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 0.081321 s, 0.411278 s, +0.329957 s, × 5.057464 mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 7.528370 s, 0.155133 s, -7.373237 s, × 0.020606 mozilla-try x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 6.757368 s, 0.048933 s, -6.708435 s, × 0.007241 mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 7.643752 s, 8.100385 s, +0.456633 s, × 1.059739 mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : 9.704242 s, 1.446720 s, -8.257522 s, × 0.149081 mozilla-try x00000_revs_x_added_0_copies 6a320851d377 1ebb79acd503 : 0.092845 s, killed mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 26.626870 s, 1.369537 s, -25.257333 s, × 0.051434 mozilla-try x00000_revs_x_added_x_copies 5173c4b6f97c 95d83ee7242d : 0.092953 s, killed mozilla-try x00000_revs_x000_added_x_copies 9126823d0e9c ca82787bb23c : 0.227131 s, killed mozilla-try x00000_revs_x0000_added_x0000_copies 8d3fafa80d4b eb884023b810 : 18.884666 s, 5.186079 s, -13.698587 s, × 0.274619 mozilla-try x00000_revs_x00000_added_x0000_copies 1b661134e2ca 1ae03d022d6d : 21.451622 s, killed mozilla-try x00000_revs_x00000_added_x000_copies 9b2a99adc05e 8e29777b48e6 : 25.152558 s, killed Differential Revision: https://phab.mercurial-scm.org/D9303

copies-rust: leverage the immutability for efficient update The immutable OrdMap has a diff function. That function yield items for each difference (missing in minor; missing in major; present in both, but different). We reorganise the manifest merging code to use this new function. We gather the data we would need to inject into the `minor` or `major` dict and eventually update one of them. The semantic of the merge itself is kept as is. Why are we doing this? Last year we contributed a patch making that diff function quickly detect some of the identical subsection when comparing two OrdMap cloned from a common ancestors (because they point to the very same node in memory). As a result: - That diff function is very fast in most of our cases, - It is important to maximize the "common" part by minimising the amount of unnecessary changes we do in theses Map. This is why we gather update for both and update the one with the smaller update. In practice, this yield a massive speed up on all our slow cases. Some examples below.: Repo Cases Source-Rev Dest-Rev Old-Time New-Time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 33.527067 s, 2.780174 s, -30.746893 s, × 0.0829 netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : killed(>120), 1.231869 s mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : killed(>120), 3.478747 s mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 83.508590 s, 9.843481 s, -73.665109 s, × 0.1179 mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : 55.079813 s, 1.465128 s, -53.614685 s, × 0.0266 The performance compared to the Python code are now comparable (worst case are a score percent slower)" You an check the full table below for details. The big new is that, with this change, we are now faster filelog in most case, . Below is an highlight of some pretty nice win: Repo Case Source-Rev Dest-Rev filelog sidedata Difference Factor --------------------------------------------------------------------------------------------------------------------------------------- pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 1.354211 s, 0.252125 s, -1.102086 s, × 0.186179 netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 0.939593 s, 0.112534 s, -0.827059 s, × 0.119769 netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : 3.824967 s, 1.231869 s, -2.593098 s, × 0.322060 mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 1.142414 s, 0.102184 s, -1.040230 s, × 0.089446 mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 6.667504 s, 0.046220 s, -6.621284 s, × 0.006932 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 3.267274 s, 0.315271 s, -2.952003 s, × 0.096494 mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : 16.038104 s, 3.478747 s, -12.559357 s, × 0.216905 mozilla-central x00000_revs_x00000_added_x000_copies 76caed42cf7c 1daa622bbe42 : 20.639928 s, 4.766435 s, -15.873493 s, × 0.230933 They they are a handful of slower case where we perform less well. A good Share of them are really pathological "service" merge in mozilla-try, but not all of them. Repo Case Source-Rev Dest-Rev filelog sidedata Difference Factor --------------------------------------------------------------------------------------------------------------------------------------- pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 0.001055 s, 2.780174 s, +2.779119 s, × 2635.236019 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 0.088715 s, 0.435381 s, +0.346666 s, × 4.907637 mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 0.080765 s, 0.415461 s, +0.334696 s, × 5.144072 mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 7.598509 s, 9.843481 s, +2.244972 s, × 1.295449 mozilla-try x00000_revs_x_added_0_copies 6a320851d377 1ebb79acd503 : 0.092232 s, killed mozilla-try x00000_revs_x_added_x_copies 5173c4b6f97c 95d83ee7242d : 0.093892 s, killed mozilla-try x00000_revs_x000_added_x_copies 9126823d0e9c ca82787bb23c : 0.227503 s, killed mozilla-try x00000_revs_x00000_added_x0000_copies 1b661134e2ca 1ae03d022d6d : 21.145391 s, killed mozilla-try x00000_revs_x00000_added_x000_copies 9b2a99adc05e 8e29777b48e6 : 25.304164 s, killed Below are two different tables for full performance comparison - this changeset against the previous one (spoiler: it is much better) - this changeset against the python code (spoiler: still slower, but it gets more comparable) - this changeset against the filelog code (spoiler: better in many case, but not all) Repo Cases Source-Rev Dest-Rev Old-Time New-Time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ mercurial x_revs_x_added_0_copies ad6b123de1c7 39cfcef4f463 : 0.000049 s, 0.000049 s, +0.000000 s, × 1.0000 mercurial x_revs_x_added_x_copies 2b1c78674230 0c1d10351869 : 0.000179 s, 0.000182 s, +0.000003 s, × 1.0168 mercurial x000_revs_x000_added_x_copies 81f8ff2a9bf2 dd3267698d84 : 0.006494 s, 0.005872 s, -0.000622 s, × 0.9042 pypy x_revs_x_added_0_copies aed021ee8ae8 099ed31b181b : 0.000339 s, 0.000229 s, -0.000110 s, × 0.6755 pypy x_revs_x000_added_0_copies 4aa4e1f8e19a 359343b9ac0e : 0.000057 s, 0.000058 s, +0.000001 s, × 1.0175 pypy x_revs_x_added_x_copies ac52eb7bbbb0 72e022663155 : 0.000299 s, 0.000148 s, -0.000151 s, × 0.4950 pypy x_revs_x00_added_x_copies c3b14617fbd7 ace7255d9a26 : 0.001200 s, 0.001205 s, +0.000005 s, × 1.0042 pypy x_revs_x000_added_x000_copies df6f7a526b60 a83dc6a2d56f : 0.025120 s, 0.025662 s, +0.000542 s, × 1.0216 pypy x000_revs_xx00_added_0_copies 89a76aede314 2f22446ff07e : 0.506921 s, 0.080113 s, -0.426808 s, × 0.1580 pypy x000_revs_x000_added_x_copies 8a3b5bfd266e 2c68e87c3efe : 1.272060 s, 0.153030 s, -1.119030 s, × 0.1203 pypy x000_revs_x000_added_x000_copies 89a76aede314 7b3dda341c84 : 0.690941 s, 0.098774 s, -0.592167 s, × 0.1430 pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 33.527067 s, 2.780174 s, -30.746893 s, × 0.0829 pypy x0000_revs_xx000_added_0_copies bf2c629d0071 4ffed77c095c : 0.021970 s, 0.022218 s, +0.000248 s, × 1.0113 pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 1.772094 s, 0.252125 s, -1.519969 s, × 0.1423 netbeans x_revs_x_added_0_copies fb0955ffcbcd a01e9239f9e7 : 0.000185 s, 0.000186 s, +0.000001 s, × 1.0054 netbeans x_revs_x000_added_0_copies 6f360122949f 20eb231cc7d0 : 0.000135 s, 0.000133 s, -0.000002 s, × 0.9852 netbeans x_revs_x_added_x_copies 1ada3faf6fb6 5a39d12eecf4 : 0.000329 s, 0.000320 s, -0.000009 s, × 0.9726 netbeans x_revs_x00_added_x_copies 35be93ba1e2c 9eec5e90c05f : 0.001343 s, 0.001336 s, -0.000007 s, × 0.9948 netbeans x000_revs_xx00_added_0_copies eac3045b4fdd 51d4ae7f1290 : 0.029396 s, 0.015573 s, -0.013823 s, × 0.5298 netbeans x000_revs_x000_added_x_copies e2063d266acd 6081d72689dc : 0.040210 s, 0.018667 s, -0.021543 s, × 0.4642 netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 4.556794 s, 0.112534 s, -4.444260 s, × 0.0247 netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : killed , 1.231869 s mozilla-central x_revs_x_added_0_copies 3697f962bb7b 7015fcdd43a2 : 0.000199 s, 0.000197 s, -0.000002 s, × 0.9899 mozilla-central x_revs_x000_added_0_copies dd390860c6c9 40d0c5bed75d : 0.000639 s, 0.000637 s, -0.000002 s, × 0.9969 mozilla-central x_revs_x_added_x_copies 8d198483ae3b 14207ffc2b2f : 0.000542 s, 0.000303 s, -0.000239 s, × 0.5590 mozilla-central x_revs_x00_added_x_copies 98cbc58cc6bc 446a150332c3 : 0.001685 s, 0.001663 s, -0.000022 s, × 0.9869 mozilla-central x_revs_x000_added_x000_copies 3c684b4b8f68 0a5e72d1b479 : 0.006954 s, 0.007008 s, +0.000054 s, × 1.0078 mozilla-central x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.132938 s, 0.127385 s, -0.005553 s, × 0.9582 mozilla-central x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.008683 s, 0.008740 s, +0.000057 s, × 1.0066 mozilla-central x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.005956 s, 0.005783 s, -0.000173 s, × 0.9710 mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 0.963905 s, 0.102184 s, -0.861721 s, × 0.1060 mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.049239 s, 0.046220 s, -0.003019 s, × 0.9387 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 4.217003 s, 0.315271 s, -3.901732 s, × 0.0748 mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : killed , 3.478747 s mozilla-central x00000_revs_x00000_added_x000_copies 76caed42cf7c 1daa622bbe42 : killed , 4.766435 s mozilla-try x_revs_x_added_0_copies aaf6dde0deb8 9790f499805a : 0.001197 s, 0.001214 s, +0.000017 s, × 1.0142 mozilla-try x_revs_x000_added_0_copies d8d0222927b4 5bb8ce8c7450 : 0.001213 s, 0.001221 s, +0.000008 s, × 1.0066 mozilla-try x_revs_x_added_x_copies 092fcca11bdb 936255a0384a : 0.000762 s, 0.000613 s, -0.000149 s, × 0.8045 mozilla-try x_revs_x00_added_x_copies b53d2fadbdb5 017afae788ec : 0.001909 s, 0.001904 s, -0.000005 s, × 0.9974 mozilla-try x_revs_x000_added_x000_copies 20408ad61ce5 6f0ee96e21ad : 0.093021 s, 0.093000 s, -0.000021 s, × 0.9998 mozilla-try x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.134536 s, 0.132194 s, -0.002342 s, × 0.9826 mozilla-try x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.009071 s, 0.009069 s, -0.000002 s, × 0.9998 mozilla-try x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.006206 s, 0.006169 s, -0.000037 s, × 0.9940 mozilla-try x000_revs_x000_added_x000_copies 1346fd0130e4 4c65cbdabc1f : 1.150502 s, 0.115540 s, -1.034962 s, × 0.1004 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 1.114864 s, 0.435381 s, -0.679483 s, × 0.3905 mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 1.042658 s, 0.415461 s, -0.627197 s, × 0.3985 mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 0.447402 s, 0.155946 s, -0.291456 s, × 0.3486 mozilla-try x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.051132 s, 0.048521 s, -0.002611 s, × 0.9489 mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 83.508590 s, 9.843481 s, -73.665109 s, × 0.1179 mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : 55.079813 s, 1.465128 s, -53.614685 s, × 0.0266 mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 1.442793 s, 1.374283 s, -0.068510 s, × 0.9525 mozilla-try x00000_revs_x0000_added_x0000_copies 8d3fafa80d4b eb884023b810 : killed , 5.255158 s Repo Cases Source-Rev Dest-Rev Py-time Rust-time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ mercurial x_revs_x_added_0_copies ad6b123de1c7 39cfcef4f463 : 0.000044 s, 0.000049 s, +0.000005 s, × 1.1136 mercurial x_revs_x_added_x_copies 2b1c78674230 0c1d10351869 : 0.000138 s, 0.000182 s, +0.000044 s, × 1.3188 mercurial x000_revs_x000_added_x_copies 81f8ff2a9bf2 dd3267698d84 : 0.005052 s, 0.005872 s, +0.000820 s, × 1.1623 pypy x_revs_x_added_0_copies aed021ee8ae8 099ed31b181b : 0.000219 s, 0.000229 s, +0.000010 s, × 1.0457 pypy x_revs_x000_added_0_copies 4aa4e1f8e19a 359343b9ac0e : 0.000055 s, 0.000058 s, +0.000003 s, × 1.0545 pypy x_revs_x_added_x_copies ac52eb7bbbb0 72e022663155 : 0.000128 s, 0.000148 s, +0.000020 s, × 1.1562 pypy x_revs_x00_added_x_copies c3b14617fbd7 ace7255d9a26 : 0.001089 s, 0.001205 s, +0.000116 s, × 1.1065 pypy x_revs_x000_added_x000_copies df6f7a526b60 a83dc6a2d56f : 0.017407 s, 0.025662 s, +0.008255 s, × 1.4742 pypy x000_revs_xx00_added_0_copies 89a76aede314 2f22446ff07e : 0.094175 s, 0.080113 s, -0.014062 s, × 0.8507 pypy x000_revs_x000_added_x_copies 8a3b5bfd266e 2c68e87c3efe : 0.238009 s, 0.153030 s, -0.084979 s, × 0.6430 pypy x000_revs_x000_added_x000_copies 89a76aede314 7b3dda341c84 : 0.125876 s, 0.098774 s, -0.027102 s, × 0.7847 pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 3.581556 s, 2.780174 s, -0.801382 s, × 0.7762 pypy x0000_revs_xx000_added_0_copies bf2c629d0071 4ffed77c095c : 0.016721 s, 0.022218 s, +0.005497 s, × 1.3287 pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 0.242367 s, 0.252125 s, +0.009758 s, × 1.0403 netbeans x_revs_x_added_0_copies fb0955ffcbcd a01e9239f9e7 : 0.000165 s, 0.000186 s, +0.000021 s, × 1.1273 netbeans x_revs_x000_added_0_copies 6f360122949f 20eb231cc7d0 : 0.000114 s, 0.000133 s, +0.000019 s, × 1.1667 netbeans x_revs_x_added_x_copies 1ada3faf6fb6 5a39d12eecf4 : 0.000296 s, 0.000320 s, +0.000024 s, × 1.0811 netbeans x_revs_x00_added_x_copies 35be93ba1e2c 9eec5e90c05f : 0.001124 s, 0.001336 s, +0.000212 s, × 1.1886 netbeans x000_revs_xx00_added_0_copies eac3045b4fdd 51d4ae7f1290 : 0.013060 s, 0.015573 s, +0.002513 s, × 1.1924 netbeans x000_revs_x000_added_x_copies e2063d266acd 6081d72689dc : 0.017112 s, 0.018667 s, +0.001555 s, × 1.0909 netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 0.660350 s, 0.112534 s, -0.547816 s, × 0.1704 netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : 10.032499 s, 1.231869 s, -8.800630 s, × 0.1228 mozilla-central x_revs_x_added_0_copies 3697f962bb7b 7015fcdd43a2 : 0.000189 s, 0.000197 s, +0.000008 s, × 1.0423 mozilla-central x_revs_x000_added_0_copies dd390860c6c9 40d0c5bed75d : 0.000462 s, 0.000637 s, +0.000175 s, × 1.3788 mozilla-central x_revs_x_added_x_copies 8d198483ae3b 14207ffc2b2f : 0.000270 s, 0.000303 s, +0.000033 s, × 1.1222 mozilla-central x_revs_x00_added_x_copies 98cbc58cc6bc 446a150332c3 : 0.001474 s, 0.001663 s, +0.000189 s, × 1.1282 mozilla-central x_revs_x000_added_x000_copies 3c684b4b8f68 0a5e72d1b479 : 0.004806 s, 0.007008 s, +0.002202 s, × 1.4582 mozilla-central x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.085150 s, 0.127385 s, +0.042235 s, × 1.4960 mozilla-central x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.007064 s, 0.008740 s, +0.001676 s, × 1.2373 mozilla-central x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.004741 s, 0.005783 s, +0.001042 s, × 1.2198 mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 0.190133 s, 0.102184 s, -0.087949 s, × 0.5374 mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.035651 s, 0.046220 s, +0.010569 s, × 1.2965 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 0.440694 s, 0.315271 s, -0.125423 s, × 0.7154 mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : 18.454163 s, 3.478747 s, -14.975416 s, × 0.1885 mozilla-central x00000_revs_x00000_added_x000_copies 76caed42cf7c 1daa622bbe42 : 31.562719 s, 4.766435 s, -26.796284 s, × 0.1510 mozilla-try x_revs_x_added_0_copies aaf6dde0deb8 9790f499805a : 0.001189 s, 0.001214 s, +0.000025 s, × 1.0210 mozilla-try x_revs_x000_added_0_copies d8d0222927b4 5bb8ce8c7450 : 0.001204 s, 0.001221 s, +0.000017 s, × 1.0141 mozilla-try x_revs_x_added_x_copies 092fcca11bdb 936255a0384a : 0.000586 s, 0.000613 s, +0.000027 s, × 1.0461 mozilla-try x_revs_x00_added_x_copies b53d2fadbdb5 017afae788ec : 0.001845 s, 0.001904 s, +0.000059 s, × 1.0320 mozilla-try x_revs_x000_added_x000_copies 20408ad61ce5 6f0ee96e21ad : 0.063822 s, 0.093000 s, +0.029178 s, × 1.4572 mozilla-try x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.088038 s, 0.132194 s, +0.044156 s, × 1.5016 mozilla-try x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.007389 s, 0.009069 s, +0.001680 s, × 1.2274 mozilla-try x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.004868 s, 0.006169 s, +0.001301 s, × 1.2673 mozilla-try x000_revs_x000_added_x000_copies 1346fd0130e4 4c65cbdabc1f : 0.222450 s, 0.115540 s, -0.106910 s, × 0.5194 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 0.370675 s, 0.435381 s, +0.064706 s, × 1.1746 mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 0.358020 s, 0.415461 s, +0.057441 s, × 1.1604 mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 0.145235 s, 0.155946 s, +0.010711 s, × 1.0737 mozilla-try x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.037606 s, 0.048521 s, +0.010915 s, × 1.2902 mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 7.382439 s, 9.843481 s, +2.461042 s, × 1.3334 mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : 7.273506 s, 1.465128 s, -5.808378 s, × 0.2014 mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 1.074593 s, 1.374283 s, +0.299690 s, × 1.2789 mozilla-try x00000_revs_x0000_added_x0000_copies 8d3fafa80d4b eb884023b810 : 27.746195 s, 5.255158 s, -22.491037 s, × 0.1894 Repo Case Source-Rev Dest-Rev filelog sidedata Difference Factor --------------------------------------------------------------------------------------------------------------------------------------- mercurial x_revs_x_added_0_copies ad6b123de1c7 39cfcef4f463 : 0.000906 s, 0.000049 s, -0.000857 s, × 0.054084 mercurial x_revs_x_added_x_copies 2b1c78674230 0c1d10351869 : 0.001832 s, 0.000182 s, -0.001650 s, × 0.099345 mercurial x000_revs_x000_added_x_copies 81f8ff2a9bf2 dd3267698d84 : 0.018101 s, 0.005872 s, -0.012229 s, × 0.324402 pypy x_revs_x_added_0_copies aed021ee8ae8 099ed31b181b : 0.001508 s, 0.000229 s, -0.001279 s, × 0.151857 pypy x_revs_x000_added_0_copies 4aa4e1f8e19a 359343b9ac0e : 0.207438 s, 0.000058 s, -0.207380 s, × 0.000280 pypy x_revs_x_added_x_copies ac52eb7bbbb0 72e022663155 : 0.016956 s, 0.000148 s, -0.016808 s, × 0.008728 pypy x_revs_x00_added_x_copies c3b14617fbd7 ace7255d9a26 : 0.019129 s, 0.001205 s, -0.017924 s, × 0.062993 pypy x_revs_x000_added_x000_copies df6f7a526b60 a83dc6a2d56f : 0.772050 s, 0.025662 s, -0.746388 s, × 0.033239 pypy x000_revs_xx00_added_0_copies 89a76aede314 2f22446ff07e : 1.181775 s, 0.080113 s, -1.101662 s, × 0.067790 pypy x000_revs_x000_added_x_copies 8a3b5bfd266e 2c68e87c3efe : 1.255717 s, 0.153030 s, -1.102687 s, × 0.121867 pypy x000_revs_x000_added_x000_copies 89a76aede314 7b3dda341c84 : 1.628132 s, 0.098774 s, -1.529358 s, × 0.060667 pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 0.001055 s, 2.780174 s, +2.779119 s, × 2635.236019 pypy x0000_revs_xx000_added_0_copies bf2c629d0071 4ffed77c095c : 1.056756 s, 0.022218 s, -1.034538 s, × 0.021025 pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 1.354211 s, 0.252125 s, -1.102086 s, × 0.186179 netbeans x_revs_x_added_0_copies fb0955ffcbcd a01e9239f9e7 : 0.027759 s, 0.000186 s, -0.027573 s, × 0.006701 netbeans x_revs_x000_added_0_copies 6f360122949f 20eb231cc7d0 : 0.133382 s, 0.000133 s, -0.133249 s, × 0.000997 netbeans x_revs_x_added_x_copies 1ada3faf6fb6 5a39d12eecf4 : 0.025353 s, 0.000320 s, -0.025033 s, × 0.012622 netbeans x_revs_x00_added_x_copies 35be93ba1e2c 9eec5e90c05f : 0.052939 s, 0.001336 s, -0.051603 s, × 0.025237 netbeans x000_revs_xx00_added_0_copies eac3045b4fdd 51d4ae7f1290 : 0.037532 s, 0.015573 s, -0.021959 s, × 0.414926 netbeans x000_revs_x000_added_x_copies e2063d266acd 6081d72689dc : 0.195401 s, 0.018667 s, -0.176734 s, × 0.095532 netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 0.939593 s, 0.112534 s, -0.827059 s, × 0.119769 netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : 3.824967 s, 1.231869 s, -2.593098 s, × 0.322060 mozilla-central x_revs_x_added_0_copies 3697f962bb7b 7015fcdd43a2 : 0.024626 s, 0.000197 s, -0.024429 s, × 0.008000 mozilla-central x_revs_x000_added_0_copies dd390860c6c9 40d0c5bed75d : 0.141098 s, 0.000637 s, -0.140461 s, × 0.004515 mozilla-central x_revs_x_added_x_copies 8d198483ae3b 14207ffc2b2f : 0.025973 s, 0.000303 s, -0.025670 s, × 0.011666 mozilla-central x_revs_x00_added_x_copies 98cbc58cc6bc 446a150332c3 : 0.085098 s, 0.001663 s, -0.083435 s, × 0.019542 mozilla-central x_revs_x000_added_x000_copies 3c684b4b8f68 0a5e72d1b479 : 0.196623 s, 0.007008 s, -0.189615 s, × 0.035642 mozilla-central x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 2.182911 s, 0.127385 s, -2.055526 s, × 0.058356 mozilla-central x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.088865 s, 0.008740 s, -0.080125 s, × 0.098351 mozilla-central x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.731211 s, 0.005783 s, -0.725428 s, × 0.007909 mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 1.142414 s, 0.102184 s, -1.040230 s, × 0.089446 mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 6.667504 s, 0.046220 s, -6.621284 s, × 0.006932 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 3.267274 s, 0.315271 s, -2.952003 s, × 0.096494 mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : 16.038104 s, 3.478747 s, -12.559357 s, × 0.216905 mozilla-central x00000_revs_x00000_added_x000_copies 76caed42cf7c 1daa622bbe42 : 20.639928 s, 4.766435 s, -15.873493 s, × 0.230933 mozilla-try x_revs_x_added_0_copies aaf6dde0deb8 9790f499805a : 0.080513 s, 0.001214 s, -0.079299 s, × 0.015078 mozilla-try x_revs_x000_added_0_copies d8d0222927b4 5bb8ce8c7450 : 0.502965 s, 0.001221 s, -0.501744 s, × 0.002428 mozilla-try x_revs_x_added_x_copies 092fcca11bdb 936255a0384a : 0.021408 s, 0.000613 s, -0.020795 s, × 0.028634 mozilla-try x_revs_x00_added_x_copies b53d2fadbdb5 017afae788ec : 0.228498 s, 0.001904 s, -0.226594 s, × 0.008333 mozilla-try x_revs_x000_added_x000_copies 20408ad61ce5 6f0ee96e21ad : 1.118490 s, 0.093000 s, -1.025490 s, × 0.083148 mozilla-try x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 2.188390 s, 0.132194 s, -2.056196 s, × 0.060407 mozilla-try x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.089755 s, 0.009069 s, -0.080686 s, × 0.101042 mozilla-try x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.750223 s, 0.006169 s, -0.744054 s, × 0.008223 mozilla-try x000_revs_x000_added_x000_copies 1346fd0130e4 4c65cbdabc1f : 1.189708 s, 0.115540 s, -1.074168 s, × 0.097116 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 0.088715 s, 0.435381 s, +0.346666 s, × 4.907637 mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 0.080765 s, 0.415461 s, +0.334696 s, × 5.144072 mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 7.487310 s, 0.155946 s, -7.331364 s, × 0.020828 mozilla-try x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 6.676682 s, 0.048521 s, -6.628161 s, × 0.007267 mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 7.598509 s, 9.843481 s, +2.244972 s, × 1.295449 mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : 9.871850 s, 1.465128 s, -8.406722 s, × 0.148415 mozilla-try x00000_revs_x_added_0_copies 6a320851d377 1ebb79acd503 : 0.092232 s, killed mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 26.471560 s, 1.374283 s, -25.097277 s, × 0.051915 mozilla-try x00000_revs_x_added_x_copies 5173c4b6f97c 95d83ee7242d : 0.093892 s, killed mozilla-try x00000_revs_x000_added_x_copies 9126823d0e9c ca82787bb23c : 0.227503 s, killed mozilla-try x00000_revs_x0000_added_x0000_copies 8d3fafa80d4b eb884023b810 : 19.064699 s, 5.255158 s, -13.809541 s, × 0.275649 mozilla-try x00000_revs_x00000_added_x0000_copies 1b661134e2ca 1ae03d022d6d : 21.145391 s, killed mozilla-try x00000_revs_x00000_added_x000_copies 9b2a99adc05e 8e29777b48e6 : 25.304164 s, killed Differential Revision: https://phab.mercurial-scm.org/D9302

phabricator: use the `http.timeout` config for conduit call Adding some timeout definitely help looping faster through the "bad connection" that I suffer from. So lets make it available. Differential Revision: https://phab.mercurial-scm.org/D9453

phabricator: introduce a `phabricator.retry` option For the past 2 days, my connection to phab.mercurial-scm.org became extremely poor. In practice this mean that any conduit call has a fairly high change to hang and die. Giving the amount of call done by the phabricator extension, it means the when I am lucky I can get 1 or 2 Diff to update after a few try, but anything sizeable doesn't have any hope to get through. This changesets introduce a new option for the fabricator extension to try retry failed command itself. So that I can get Diff through. As you can guess, this changeset managed to reach Phabricator thanks to itself. Differential Revision: https://phab.mercurial-scm.org/D9449

packaging: drop Disco (19.04) and add Focal (20.04) Disco support ended in January 2020, and Focal does not have an announced EOL. Something is now installing and configuring `tzdata`, which was throwing up an interactive prompt to configure the timezone. Aside from being hostile to automation, the prompt didn't actually accept input and hung the process. This propagates the host's timezone into the image via environment variable in order to skip the prompt, and avoid hardcoding a value. Differential Revision: https://phab.mercurial-scm.org/D9396

make: drop Trusty and Artful targets These were removed from the packaging makefile in 0363bb086c57. Differential Revision: https://phab.mercurial-scm.org/D9395

packaging: add `HG_DOCKER_OWN_USER` to `dockerdeb` like exists in `dockerrpm` I was getting build failures when it was trying to write to the working directory on CentOS 7 without this. It is basically the same as was added to the RPM builder in 4c0d4bbdc395. For some reason, this doesn't work with Xenial, and the only solution I found was to invoke it with UID 1000 on the host side. It doesn't EOL until April 2024, but it also has python 3.5.2, so this build complication is the least of the problems with supporting it after py2 is dropped. Differential Revision: https://phab.mercurial-scm.org/D9394

heptapod-ci: do not publish changeset when doing the local clone Otherwise, checks and script relying on some changeset being draft fails. Differential Revision: https://phab.mercurial-scm.org/D9461

copies-rust: pre-indent some code to clarify the next changeset The next changeset will massively rewrite the next function. However having a clear diff on the core semantic of the function will help making the next changesets clearer. So we do most of the churn beforehand. Differential Revision: https://phab.mercurial-scm.org/D9301

copies-rust: use immutable "OrdMap" to store copies information The large majority of time is currently spent coping and merging directories. the `IM` crate offer "immutable" Map, that use "copy on write" internally. The new object use the same API as the standard HashMap. So switching to it is trivial and it reduce copying cost significantly. More importantly, using immutable structure will unlock new possibility for a massive speed up of the "merging" part. This will came in a later changesets. Performance wise, we get very significant boost in the worst case. Below is some highlight of how we fare compared to the previous changeset. Repo Cases Source-Rev Dest-Rev Old-Time New-Time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 62.468362 s, 33.527067 s, -28.941295 s, × 0.5367 mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 3.619850 s, 0.963905 s, -2.655945 s, × 0.2663 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 11.926587 s, 4.217003 s, -7.709584 s, × 0.3536 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 10.674920 s, 1.114864 s, -9.560056 s, × 0.1044 mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 19.647038 s, 1.442793 s, -18.204245 s, × 0.0734 And we sometimes catch up with the performance of the python code as highlighted below: Repo Cases Source-Rev Dest-Rev Py-time Rust-time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 1.074593 s, 1.442793 s, +0.368200 s, × 1.3426 However, multiple case remains significantly slower, as highlighted below Repo Cases Source-Rev Dest-Rev Py-time Rust-time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 0.190133 s, 0.963905 s, +0.773772 s, × 5.0696 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 0.440694 s, 4.217003 s, +3.776309 s, × 9.5690 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 0.370675 s, 1.114864 s, +0.744189 s, × 3.0077 pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 3.581556 s, 33.527067 s, +29.945511 s, × 9.3610 Below are two different tables for full performance comparison - this changeset against the previous one (spoiler: it is much better) - this changeset against the python code (spoiler: still slower, but it gets more comparable) This changeset compared to the previous one =========================================== Repo Cases Source-Rev Dest-Rev Old-Time New-Time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ mercurial x_revs_x_added_0_copies ad6b123de1c7 39cfcef4f463 : 0.000046 s, 0.000049 s, +0.000003 s, × 1.0652 mercurial x_revs_x_added_x_copies 2b1c78674230 0c1d10351869 : 0.000173 s, 0.000179 s, +0.000006 s, × 1.0347 mercurial x000_revs_x000_added_x_copies 81f8ff2a9bf2 dd3267698d84 : 0.006303 s, 0.006494 s, +0.000191 s, × 1.0303 pypy x_revs_x_added_0_copies aed021ee8ae8 099ed31b181b : 0.000229 s, 0.000339 s, +0.000110 s, × 1.4803 pypy x_revs_x000_added_0_copies 4aa4e1f8e19a 359343b9ac0e : 0.000056 s, 0.000057 s, +0.000001 s, × 1.0179 pypy x_revs_x_added_x_copies ac52eb7bbbb0 72e022663155 : 0.000143 s, 0.000299 s, +0.000156 s, × 2.0909 pypy x_revs_x00_added_x_copies c3b14617fbd7 ace7255d9a26 : 0.001166 s, 0.001200 s, +0.000034 s, × 1.0292 pypy x_revs_x000_added_x000_copies df6f7a526b60 a83dc6a2d56f : 0.022931 s, 0.025120 s, +0.002189 s, × 1.0955 pypy x000_revs_xx00_added_0_copies 89a76aede314 2f22446ff07e : 0.852446 s, 0.506921 s, -0.345525 s, × 0.5947 pypy x000_revs_x000_added_x_copies 8a3b5bfd266e 2c68e87c3efe : 2.221824 s, 1.272060 s, -0.949764 s, × 0.5725 pypy x000_revs_x000_added_x000_copies 89a76aede314 7b3dda341c84 : 1.194162 s, 0.690941 s, -0.503221 s, × 0.5786 pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 62.468362 s, 33.527067 s, -28.941295 s, × 0.5367 pypy x0000_revs_xx000_added_0_copies bf2c629d0071 4ffed77c095c : 0.022116 s, 0.021970 s, -0.000146 s, × 0.9934 pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 2.972788 s, 1.772094 s, -1.200694 s, × 0.5961 netbeans x_revs_x_added_0_copies fb0955ffcbcd a01e9239f9e7 : 0.000180 s, 0.000185 s, +0.000005 s, × 1.0278 netbeans x_revs_x000_added_0_copies 6f360122949f 20eb231cc7d0 : 0.000123 s, 0.000135 s, +0.000012 s, × 1.0976 netbeans x_revs_x_added_x_copies 1ada3faf6fb6 5a39d12eecf4 : 0.000315 s, 0.000329 s, +0.000014 s, × 1.0444 netbeans x_revs_x00_added_x_copies 35be93ba1e2c 9eec5e90c05f : 0.001297 s, 0.001343 s, +0.000046 s, × 1.0355 netbeans x000_revs_xx00_added_0_copies eac3045b4fdd 51d4ae7f1290 : 0.024884 s, 0.029396 s, +0.004512 s, × 1.1813 netbeans x000_revs_x000_added_x_copies e2063d266acd 6081d72689dc : 0.032653 s, 0.040210 s, +0.007557 s, × 1.2314 netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 4.230118 s, 4.556794 s, +0.326676 s, × 1.0772 mozilla-central x_revs_x_added_0_copies 3697f962bb7b 7015fcdd43a2 : 0.000197 s, 0.000199 s, +0.000002 s, × 1.0102 mozilla-central x_revs_x000_added_0_copies dd390860c6c9 40d0c5bed75d : 0.000622 s, 0.000639 s, +0.000017 s, × 1.0273 mozilla-central x_revs_x_added_x_copies 8d198483ae3b 14207ffc2b2f : 0.000296 s, 0.000542 s, +0.000246 s, × 1.8311 mozilla-central x_revs_x00_added_x_copies 98cbc58cc6bc 446a150332c3 : 0.001626 s, 0.001685 s, +0.000059 s, × 1.0363 mozilla-central x_revs_x000_added_x000_copies 3c684b4b8f68 0a5e72d1b479 : 0.006218 s, 0.006954 s, +0.000736 s, × 1.1184 mozilla-central x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.132760 s, 0.132938 s, +0.000178 s, × 1.0013 mozilla-central x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.029001 s, 0.008683 s, -0.020318 s, × 0.2994 mozilla-central x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.005886 s, 0.005956 s, +0.000070 s, × 1.0119 mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 3.619850 s, 0.963905 s, -2.655945 s, × 0.2663 mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.058678 s, 0.049239 s, -0.009439 s, × 0.8391 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 11.926587 s, 4.217003 s, -7.709584 s, × 0.3536 mozilla-try x_revs_x_added_0_copies aaf6dde0deb8 9790f499805a : 0.001204 s, 0.001197 s, -0.000007 s, × 0.9942 mozilla-try x_revs_x000_added_0_copies d8d0222927b4 5bb8ce8c7450 : 0.001217 s, 0.001213 s, -0.000004 s, × 0.9967 mozilla-try x_revs_x_added_x_copies 092fcca11bdb 936255a0384a : 0.000605 s, 0.000762 s, +0.000157 s, × 1.2595 mozilla-try x_revs_x00_added_x_copies b53d2fadbdb5 017afae788ec : 0.001876 s, 0.001909 s, +0.000033 s, × 1.0176 mozilla-try x_revs_x000_added_x000_copies 20408ad61ce5 6f0ee96e21ad : 0.078190 s, 0.093021 s, +0.014831 s, × 1.1897 mozilla-try x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.135428 s, 0.134536 s, -0.000892 s, × 0.9934 mozilla-try x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.029123 s, 0.009071 s, -0.020052 s, × 0.3115 mozilla-try x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.006141 s, 0.006206 s, +0.000065 s, × 1.0106 mozilla-try x000_revs_x000_added_x000_copies 1346fd0130e4 4c65cbdabc1f : 4.857827 s, 1.150502 s, -3.707325 s, × 0.2368 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 10.674920 s, 1.114864 s, -9.560056 s, × 0.1044 mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 9.789462 s, 1.042658 s, -8.746804 s, × 0.1065 mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 1.087890 s, 0.447402 s, -0.640488 s, × 0.4113 mozilla-try x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.060556 s, 0.051132 s, -0.009424 s, × 0.8444 mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : killed , 83.508590 s mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : killed , 55.079813 s mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 19.647038 s, 1.442793 s, -18.204245 s, × 0.0734 This changeset compared to the Python Code ========================================== Repo Cases Source-Rev Dest-Rev Py-time Rust-time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ mercurial x_revs_x_added_0_copies ad6b123de1c7 39cfcef4f463 : 0.000044 s, 0.000049 s, +0.000005 s, × 1.1136 mercurial x_revs_x_added_x_copies 2b1c78674230 0c1d10351869 : 0.000138 s, 0.000179 s, +0.000041 s, × 1.2971 mercurial x000_revs_x000_added_x_copies 81f8ff2a9bf2 dd3267698d84 : 0.005052 s, 0.006494 s, +0.001442 s, × 1.2854 pypy x_revs_x_added_0_copies aed021ee8ae8 099ed31b181b : 0.000219 s, 0.000339 s, +0.000120 s, × 1.5479 pypy x_revs_x000_added_0_copies 4aa4e1f8e19a 359343b9ac0e : 0.000055 s, 0.000057 s, +0.000002 s, × 1.0364 pypy x_revs_x_added_x_copies ac52eb7bbbb0 72e022663155 : 0.000128 s, 0.000299 s, +0.000171 s, × 2.3359 pypy x_revs_x00_added_x_copies c3b14617fbd7 ace7255d9a26 : 0.001089 s, 0.001200 s, +0.000111 s, × 1.1019 pypy x_revs_x000_added_x000_copies df6f7a526b60 a83dc6a2d56f : 0.017407 s, 0.025120 s, +0.007713 s, × 1.4431 pypy x000_revs_xx00_added_0_copies 89a76aede314 2f22446ff07e : 0.094175 s, 0.506921 s, +0.412746 s, × 5.3828 pypy x000_revs_x000_added_x_copies 8a3b5bfd266e 2c68e87c3efe : 0.238009 s, 1.272060 s, +1.034051 s, × 5.3446 pypy x000_revs_x000_added_x000_copies 89a76aede314 7b3dda341c84 : 0.125876 s, 0.690941 s, +0.565065 s, × 5.4891 pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 3.581556 s, 33.527067 s, +29.945511 s, × 9.3610 pypy x0000_revs_xx000_added_0_copies bf2c629d0071 4ffed77c095c : 0.016721 s, 0.021970 s, +0.005249 s, × 1.3139 pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 0.242367 s, 1.772094 s, +1.529727 s, × 7.3116 netbeans x_revs_x_added_0_copies fb0955ffcbcd a01e9239f9e7 : 0.000165 s, 0.000185 s, +0.000020 s, × 1.1212 netbeans x_revs_x000_added_0_copies 6f360122949f 20eb231cc7d0 : 0.000114 s, 0.000135 s, +0.000021 s, × 1.1842 netbeans x_revs_x_added_x_copies 1ada3faf6fb6 5a39d12eecf4 : 0.000296 s, 0.000329 s, +0.000033 s, × 1.1115 netbeans x_revs_x00_added_x_copies 35be93ba1e2c 9eec5e90c05f : 0.001124 s, 0.001343 s, +0.000219 s, × 1.1948 netbeans x000_revs_xx00_added_0_copies eac3045b4fdd 51d4ae7f1290 : 0.013060 s, 0.029396 s, +0.016336 s, × 2.2508 netbeans x000_revs_x000_added_x_copies e2063d266acd 6081d72689dc : 0.017112 s, 0.040210 s, +0.023098 s, × 2.3498 netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 0.660350 s, 4.556794 s, +3.896444 s, × 6.9006 netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : 10.032499 s, killed mozilla-central x_revs_x_added_0_copies 3697f962bb7b 7015fcdd43a2 : 0.000189 s, 0.000199 s, +0.000010 s, × 1.0529 mozilla-central x_revs_x000_added_0_copies dd390860c6c9 40d0c5bed75d : 0.000462 s, 0.000639 s, +0.000177 s, × 1.3831 mozilla-central x_revs_x_added_x_copies 8d198483ae3b 14207ffc2b2f : 0.000270 s, 0.000542 s, +0.000272 s, × 2.0074 mozilla-central x_revs_x00_added_x_copies 98cbc58cc6bc 446a150332c3 : 0.001474 s, 0.001685 s, +0.000211 s, × 1.1431 mozilla-central x_revs_x000_added_x000_copies 3c684b4b8f68 0a5e72d1b479 : 0.004806 s, 0.006954 s, +0.002148 s, × 1.4469 mozilla-central x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.085150 s, 0.132938 s, +0.047788 s, × 1.5612 mozilla-central x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.007064 s, 0.008683 s, +0.001619 s, × 1.2292 mozilla-central x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.004741 s, 0.005956 s, +0.001215 s, × 1.2563 mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 0.190133 s, 0.963905 s, +0.773772 s, × 5.0696 mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.035651 s, 0.049239 s, +0.013588 s, × 1.3811 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 0.440694 s, 4.217003 s, +3.776309 s, × 9.5690 mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : 18.454163 s, killed mozilla-central x00000_revs_x00000_added_x000_copies 76caed42cf7c 1daa622bbe42 : 31.562719 s, killed mozilla-try x_revs_x_added_0_copies aaf6dde0deb8 9790f499805a : 0.001189 s, 0.001197 s, +0.000008 s, × 1.0067 mozilla-try x_revs_x000_added_0_copies d8d0222927b4 5bb8ce8c7450 : 0.001204 s, 0.001213 s, +0.000009 s, × 1.0075 mozilla-try x_revs_x_added_x_copies 092fcca11bdb 936255a0384a : 0.000586 s, 0.000762 s, +0.000176 s, × 1.3003 mozilla-try x_revs_x00_added_x_copies b53d2fadbdb5 017afae788ec : 0.001845 s, 0.001909 s, +0.000064 s, × 1.0347 mozilla-try x_revs_x000_added_x000_copies 20408ad61ce5 6f0ee96e21ad : 0.063822 s, 0.093021 s, +0.029199 s, × 1.4575 mozilla-try x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.088038 s, 0.134536 s, +0.046498 s, × 1.5282 mozilla-try x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.007389 s, 0.009071 s, +0.001682 s, × 1.2276 mozilla-try x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.004868 s, 0.006206 s, +0.001338 s, × 1.2749 mozilla-try x000_revs_x000_added_x000_copies 1346fd0130e4 4c65cbdabc1f : 0.222450 s, 1.150502 s, +0.928052 s, × 5.1720 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 0.370675 s, 1.114864 s, +0.744189 s, × 3.0077 mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 0.358020 s, 1.042658 s, +0.684638 s, × 2.9123 mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 0.145235 s, 0.447402 s, +0.302167 s, × 3.0805 mozilla-try x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.037606 s, 0.051132 s, +0.013526 s, × 1.3597 mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 7.382439 s, 83.508590 s, +76.126151 s, × 11.3118 mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : 7.273506 s, 55.079813 s, +47.806307 s, × 7.5727 mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 1.074593 s, 1.442793 s, +0.368200 s, × 1.3426 mozilla-try x00000_revs_x0000_added_x0000_copies 8d3fafa80d4b eb884023b810 : 27.746195 s, killed Differential Revision: https://phab.mercurial-scm.org/D9300

copies: use the rust code for `combine_changeset_copies` Changeset centric copy tracing now use the rust code. The rust code focussed on simplicity and will be optimised later. So the performance is not great yet. Now that all the pieces are in place we can start working on performance in the coming changesets. Below is a table that summarize how slower we got: Repo Cases Source-Rev Dest-Rev Py-time Rust-time Difference Factor ------------------------------------------------------------------------------------------------------------------------------------ mercurial x_revs_x_added_0_copies ad6b123de1c7 39cfcef4f463 : 0.000049 s, 0.000046 s, -0.000003 s, × 0.9388 mercurial x_revs_x_added_x_copies 2b1c78674230 0c1d10351869 : 0.000112 s, 0.000173 s, +0.000061 s, × 1.5446 mercurial x000_revs_x000_added_x_copies 81f8ff2a9bf2 dd3267698d84 : 0.004216 s, 0.006303 s, +0.002087 s, × 1.4950 pypy x_revs_x_added_0_copies aed021ee8ae8 099ed31b181b : 0.000204 s, 0.000229 s, +0.000025 s, × 1.1225 pypy x_revs_x000_added_0_copies 4aa4e1f8e19a 359343b9ac0e : 0.000058 s, 0.000056 s, -0.000002 s, × 0.9655 pypy x_revs_x_added_x_copies ac52eb7bbbb0 72e022663155 : 0.000112 s, 0.000143 s, +0.000031 s, × 1.2768 pypy x_revs_x00_added_x_copies c3b14617fbd7 ace7255d9a26 : 0.000339 s, 0.001166 s, +0.000827 s, × 3.4395 pypy x_revs_x000_added_x000_copies df6f7a526b60 a83dc6a2d56f : 0.010214 s, 0.022931 s, +0.012717 s, × 2.2451 pypy x000_revs_xx00_added_0_copies 89a76aede314 2f22446ff07e : 0.047497 s, 0.852446 s, +0.804949 s, × 17.9474 pypy x000_revs_x000_added_x_copies 8a3b5bfd266e 2c68e87c3efe : 0.075297 s, 2.221824 s, +2.146527 s, × 29.5075 pypy x000_revs_x000_added_x000_copies 89a76aede314 7b3dda341c84 : 0.057322 s, 1.194162 s, +1.136840 s, × 20.8325 pypy x0000_revs_x_added_0_copies d1defd0dc478 c9cb1334cc78 : 0.796264 s, 62.468362 s, +61.672098 s, × 78.4518 pypy x0000_revs_xx000_added_0_copies bf2c629d0071 4ffed77c095c : 0.020491 s, 0.022116 s, +0.001625 s, × 1.0793 pypy x0000_revs_xx000_added_x000_copies 08ea3258278e d9fa043f30c0 : 0.121612 s, 2.972788 s, +2.851176 s, × 24.4449 netbeans x_revs_x_added_0_copies fb0955ffcbcd a01e9239f9e7 : 0.000143 s, 0.000180 s, +0.000037 s, × 1.2587 netbeans x_revs_x000_added_0_copies 6f360122949f 20eb231cc7d0 : 0.000112 s, 0.000123 s, +0.000011 s, × 1.0982 netbeans x_revs_x_added_x_copies 1ada3faf6fb6 5a39d12eecf4 : 0.000232 s, 0.000315 s, +0.000083 s, × 1.3578 netbeans x_revs_x00_added_x_copies 35be93ba1e2c 9eec5e90c05f : 0.000721 s, 0.001297 s, +0.000576 s, × 1.7989 netbeans x000_revs_xx00_added_0_copies eac3045b4fdd 51d4ae7f1290 : 0.010115 s, 0.024884 s, +0.014769 s, × 2.4601 netbeans x000_revs_x000_added_x_copies e2063d266acd 6081d72689dc : 0.015461 s, 0.032653 s, +0.017192 s, × 2.1120 netbeans x000_revs_x000_added_x000_copies ff453e9fee32 411350406ec2 : 0.060756 s, 4.230118 s, +4.169362 s, × 69.6247 netbeans x0000_revs_xx000_added_x000_copies 588c2d1ced70 1aad62e59ddd : 0.605842 s, killed mozilla-central x_revs_x_added_0_copies 3697f962bb7b 7015fcdd43a2 : 0.000164 s, 0.000197 s, +0.000033 s, × 1.2012 mozilla-central x_revs_x000_added_0_copies dd390860c6c9 40d0c5bed75d : 0.000331 s, 0.000622 s, +0.000291 s, × 1.8792 mozilla-central x_revs_x_added_x_copies 8d198483ae3b 14207ffc2b2f : 0.000249 s, 0.000296 s, +0.000047 s, × 1.1888 mozilla-central x_revs_x00_added_x_copies 98cbc58cc6bc 446a150332c3 : 0.000711 s, 0.001626 s, +0.000915 s, × 2.2869 mozilla-central x_revs_x000_added_x000_copies 3c684b4b8f68 0a5e72d1b479 : 0.003438 s, 0.006218 s, +0.002780 s, × 1.8086 mozilla-central x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.069869 s, 0.132760 s, +0.062891 s, × 1.9001 mozilla-central x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.005701 s, 0.029001 s, +0.023300 s, × 5.0870 mozilla-central x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.005757 s, 0.005886 s, +0.000129 s, × 1.0224 mozilla-central x000_revs_x000_added_x000_copies 7c97034feb78 4407bd0c6330 : 0.061826 s, 3.619850 s, +3.558024 s, × 58.5490 mozilla-central x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.043354 s, 0.058678 s, +0.015324 s, × 1.3535 mozilla-central x0000_revs_xx000_added_x000_copies f78c615a656c 96a38b690156 : 0.198979 s, 11.926587 s, +11.727608 s, × 59.9389 mozilla-central x00000_revs_x0000_added_x0000_copies 6832ae71433c 4c222a1d9a00 : 2.067096 s, killed mozilla-central x00000_revs_x00000_added_x000_copies 76caed42cf7c 1daa622bbe42 : 3.102616 s, killed mozilla-try x_revs_x_added_0_copies aaf6dde0deb8 9790f499805a : 0.001212 s, 0.001204 s, -0.000008 s, × 0.9934 mozilla-try x_revs_x000_added_0_copies d8d0222927b4 5bb8ce8c7450 : 0.001237 s, 0.001217 s, -0.000020 s, × 0.9838 mozilla-try x_revs_x_added_x_copies 092fcca11bdb 936255a0384a : 0.000557 s, 0.000605 s, +0.000048 s, × 1.0862 mozilla-try x_revs_x00_added_x_copies b53d2fadbdb5 017afae788ec : 0.001532 s, 0.001876 s, +0.000344 s, × 1.2245 mozilla-try x_revs_x000_added_x000_copies 20408ad61ce5 6f0ee96e21ad : 0.035166 s, 0.078190 s, +0.043024 s, × 2.2235 mozilla-try x_revs_x0000_added_x0000_copies effb563bb7e5 c07a39dc4e80 : 0.070336 s, 0.135428 s, +0.065092 s, × 1.9254 mozilla-try x000_revs_xx00_added_0_copies 6100d773079a 04a55431795e : 0.006080 s, 0.029123 s, +0.023043 s, × 4.7900 mozilla-try x000_revs_x000_added_x_copies 9f17a6fc04f9 2d37b966abed : 0.006099 s, 0.006141 s, +0.000042 s, × 1.0069 mozilla-try x000_revs_x000_added_x000_copies 1346fd0130e4 4c65cbdabc1f : 0.064317 s, 4.857827 s, +4.793510 s, × 75.5294 mozilla-try x0000_revs_x_added_0_copies 63519bfd42ee a36a2a865d92 : 0.303263 s, 10.674920 s, +10.371657 s, × 35.2002 mozilla-try x0000_revs_x_added_x_copies 9fe69ff0762d bcabf2a78927 : 0.292804 s, 9.789462 s, +9.496658 s, × 33.4335 mozilla-try x0000_revs_xx000_added_x_copies 156f6e2674f2 4d0f2c178e66 : 0.107594 s, 1.087890 s, +0.980296 s, × 10.1111 mozilla-try x0000_revs_xx000_added_0_copies 9eec5917337d 67118cc6dcad : 0.045202 s, 0.060556 s, +0.015354 s, × 1.3397 mozilla-try x0000_revs_xx000_added_x000_copies 89294cd501d9 7ccb2fc7ccb5 : 1.926277 s, killed mozilla-try x0000_revs_x0000_added_x0000_copies e928c65095ed e951f4ad123a : 0.794492 s, killed mozilla-try x00000_revs_x_added_0_copies 6a320851d377 1ebb79acd503 : 84.521497 s, killed mozilla-try x00000_revs_x00000_added_0_copies dc8a3ca7010e d16fde900c9c : 0.965937 s, 19.647038 s, +18.681101 s, × 20.3399 mozilla-try x00000_revs_x_added_x_copies 5173c4b6f97c 95d83ee7242d : 83.367146 s, killed mozilla-try x00000_revs_x000_added_x_copies 9126823d0e9c ca82787bb23c : 84.260895 s, killed mozilla-try x00000_revs_x0000_added_x0000_copies 8d3fafa80d4b eb884023b810 : 3.274537 s, killed mozilla-try x00000_revs_x00000_added_x0000_copies 1b661134e2ca 1ae03d022d6d : 42.235843 s, killed mozilla-try x00000_revs_x00000_added_x000_copies 9b2a99adc05e 8e29777b48e6 : 49.872829 s, killed Differential Revision: https://phab.mercurial-scm.org/D9299

tests: simplify and extend pull-bundle test using debugbuilddag Differential Revision: https://phab.mercurial-scm.org/D9443

helptext: document the mechanism for extensions to report a version Differential Revision: https://phab.mercurial-scm.org/D9448

heptapod-ci: add a explicite "test" phases We are about to add more stage Differential Revision: https://phab.mercurial-scm.org/D9454

test: fix some expect output in a traceback The lines moved around because of 89a2afe31e82. Differential Revision: https://phab.mercurial-scm.org/D9447

help: fix a grammar/typo in hg help dates Differential Revision: https://phab.mercurial-scm.org/D9442

rust: fix non-utf8 char in requirements.rs Apparently Phabricator detect `rust/hg-core/src/requirements.rs` file as non utf8 ‽, and mark it as binary. During application it ended up being non-utf8 and this made Rust (and as a result heptapod) very angry:: error: couldn't read hg-core/src/requirements.rs: stream did not contain valid UTF-8 --> hg-core/src/lib.rs:11:9 | 11 | pub mod requirements; | ^^^^^^^^^^^^ error: aborting due to previous error error: could not compile `hg-core`. The after "fixing", the file content has no character matching the following regexp: [^0-9-a-zA-Z /(|).,{}!\[\]:"&=>?_*-;<`'#] So we should be fine, unless Phabricator does something funny again. Differential Revision: https://phab.mercurial-scm.org/D9444

run-tests: use a context manager when looking for available ports Differential Revision: https://phab.mercurial-scm.org/D9441 Differential Revision: https://phab.mercurial-scm.org/D9452

dispatch: print the version of each extension in the bug report, if available Sometimes the wrong extensions is blamed, so we might as well print the version info for all of them. Additionally, since the internal extensions are never blamed, this is a good way to make the pygit2 version available in a bug report. Differential Revision: https://phab.mercurial-scm.org/D9440

dispatch: sort the loaded extension names in the bug report This makes a long list of extensions easier to read. On very rare occasion I've seen issues where the load order mattered, however that info should still be obtainable with `hg config extensions`. Differential Revision: https://phab.mercurial-scm.org/D9439

dispatch: quote the extension when printing the bug report I think this reads better in the wall of text. Differential Revision: https://phab.mercurial-scm.org/D9438

dispatch: print the version of the extension being blamed in a bug report I don't know of a lot of extensions using this, but it seems like useful info in a bug report. Differential Revision: https://phab.mercurial-scm.org/D9437

git: show the version of `pygit2` with verbose version output This seems like useful info to have when debugging. I followed the precedent of hg-git, which prints something like: hggit external 0.9.0a1 (dulwich 0.19.15) We don't have a version number assigned (because it's internal), so it's just the parenthetical. Differential Revision: https://phab.mercurial-scm.org/D9436

git: add the standard `testedwith` attribute Otherwise this shows up as an external extension. Differential Revision: https://phab.mercurial-scm.org/D9435

tests: add a comment that we're purposely testing py2 extension attributes Avoid someone unknowingly removing test coverage. There are tests for a properly byteified `testedwith` a few lines down. I don't see similar for `buglink`, but it's a trivial conversion to bytes, so I'm not concerned about testing the expected/wanted extension state. Differential Revision: https://phab.mercurial-scm.org/D9434

extensions: avoid a crash when the version isn't properly byteified on py3 We already force bytestr on the `testedwith` and `buglink` attributes in dispatch.py when generating a bug report with a similar comment about not every extension being ported to py3. We should do the same here, so the function can be properly typed. Differential Revision: https://phab.mercurial-scm.org/D9433

formatting: drop a few extra double quotes in docstrings These were made obvious by the reformatting in D9430. Differential Revision: https://phab.mercurial-scm.org/D9432

copies: introduce the hg-cpython wrapper for `combine_changeset_copies` This patch focus on the `hg-cpython` part of this work. Bridging the python code with the new rust code in `hg-core`. The next patch will actually plug this in the python code. The rust code use multiple Python callback, python related error within this callback are not expected unless they are a programming error or a data corruption. In addition, these callback will slowly be replaced by native Rust code. For these reasons, we use will deal with unexpected error within this callback using rust Panic and let the `rust-cpython` layer deal with raising a Python exception. The code dealing with the ChangedFile instance is repeating itself a lot. I did not factor these duplication out because that whole code will get replaced by entirely different one in a handful of changesets. Differential Revision: https://phab.mercurial-scm.org/D9298

copies: introduce a basic Rust function for `combine_changeset_copies` This new function mirror the python code. This first implementation does a lot of data copies and is therefore quite slow. However my goal here is to create a simple "frame" from where to start adding optimization. This patch focus on the `hg-core` part of this work. Coming patches will do the necessary `hg-cpython` work to be able to use this from Python. Differential Revision: https://phab.mercurial-scm.org/D9297

hghave: adjust the detection of `pylint` for modern versions I have pylint 2.6.0 installed locally, and it only has a single space. I have no idea when this changed. Differential Revision: https://phab.mercurial-scm.org/D9431

formating: upgrade to black 20.8b1 This required a couple of small tweaks to un-confuse black, but now it works. Big formatting changes come from: * Dramatically improved collection-splitting logic upstream * Black having a strong (correct IMO) opinion that """ is better than ''' Differential Revision: https://phab.mercurial-scm.org/D9430

osutil: reformat triple-quoted string so black doesn't confuse itself Differential Revision: https://phab.mercurial-scm.org/D9429

merge: remove spurious ' and trailing whitespace from triple-quoted string Differential Revision: https://phab.mercurial-scm.org/D9428