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  • Pierre-Yves David's avatar
    19884e678792
    copies-rust: leverage the immutability for efficient update · 19884e678792
    Pierre-Yves David authored
    The immutable OrdMap has a diff function. That function yield items for each
    difference (missing in minor, missing in major or 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 that makes a common
    ancestors, that diff function quickly detect some of the identical subsection
    when comparing two OrdMap cloned from the 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 minimise the amount of unnecessary changes we do in theses
      Map, to maximize the "common" part. 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 example 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
    19884e678792
    History
    copies-rust: leverage the immutability for efficient update
    Pierre-Yves David authored
    The immutable OrdMap has a diff function. That function yield items for each
    difference (missing in minor, missing in major or 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 that makes a common
    ancestors, that diff function quickly detect some of the identical subsection
    when comparing two OrdMap cloned from the 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 minimise the amount of unnecessary changes we do in theses
      Map, to maximize the "common" part. 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 example 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
copy_tracing.rs 10.98 KiB