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view tests/test-releasenotes-merging.t @ 42743:8c9a6adec67a
rust-discovery: using the children cache in add_missing
The DAG range computation often needs to get back to very old
revisions, and turns out to be disproportionately long, given
that the end goal is to remove the descendents of the given
missing revisons from the undecided set.
The fast iteration capabilities available in the Rust case make
it possible to avoid the DAG range entirely, at the cost of
precomputing the children cache, and to simply iterate on
children of the given missing revisions.
This is a case where staying on the same side of the interface
between the two languages has clear benefits.
On discoveries with initial undecided sets
small enough to bypass sampling entirely, the total cost of
computing the children cache and the subsequent iteration
becomes better than the Python + C counterpart, which relies on
reachableroots2.
For example, on a repo with more than one million revisions with
an initial undecided set of 11 elements, we get these figures:
Rust version with simple iteration
addcommons: 57.287us
first undecided computation: 184.278334ms
first children cache computation: 131.056us
addmissings iteration: 42.766us
first addinfo total: 185.24 ms
Python + C version
first addcommons: 0.29 ms
addcommons 0.21 ms
first undecided computation 191.35 ms
addmissings 45.75 ms
first addinfo total: 237.77 ms
On discoveries with large undecided sets, the initial price paid
makes the first addinfo slower than the Python + C version,
but that's more than compensated by the gain in sampling and
subsequent iterations.
Here's an extreme example with an undecided set of a million revisions:
Rust version:
first undecided computation: 293.842629ms
first children cache computation: 407.911297ms
addmissings iteration: 34.312869ms
first addinfo total: 776.02 ms
taking initial sample
query 2: sampling time: 1318.38 ms
query 2; still undecided: 1005013, sample size is: 200
addmissings: 143.062us
Python + C version:
first undecided computation 298.13 ms
addmissings 80.13 ms
first addinfo total: 399.62 ms
taking initial sample
query 2: sampling time: 3957.23 ms
query 2; still undecided: 1005013, sample size is: 200
addmissings 52.88 ms
Differential Revision: https://phab.mercurial-scm.org/D6428
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Tue, 16 Apr 2019 01:16:39 +0200 |
parents | 3748098d072a |
children |
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#require fuzzywuzzy $ cat >> $HGRCPATH << EOF > [extensions] > releasenotes= > EOF $ hg init simple-repo $ cd simple-repo A fix directive from commit message is added to release notes $ touch fix1 $ hg -q commit -A -l - << EOF > commit 1 > > .. fix:: > > Fix from commit message. > EOF $ cat >> $TESTTMP/single-fix-bullet << EOF > Bug Fixes > ========= > > * Fix from release notes. > EOF $ hg releasenotes -r . $TESTTMP/single-fix-bullet $ cat $TESTTMP/single-fix-bullet Bug Fixes ========= * Fix from release notes. * Fix from commit message. Processing again ignores the already added bullet. $ hg releasenotes -r . $TESTTMP/single-fix-bullet $ cat $TESTTMP/single-fix-bullet Bug Fixes ========= * Fix from release notes. * Fix from commit message. $ cd .. Sections are unioned $ hg init subsections $ cd subsections $ touch fix1 $ hg -q commit -A -l - << EOF > Commit 1 > > .. feature:: Commit Message Feature > > This describes a feature from a commit message. > EOF $ cat >> $TESTTMP/single-feature-section << EOF > New Features > ============ > > Notes Feature > ------------- > > This describes a feature from a release notes file. > EOF $ hg releasenotes -r . $TESTTMP/single-feature-section $ cat $TESTTMP/single-feature-section New Features ============ Notes Feature ------------- This describes a feature from a release notes file. Commit Message Feature ---------------------- This describes a feature from a commit message. Doing it again won't add another section $ hg releasenotes -r . $TESTTMP/single-feature-section Commit Message Feature already exists in feature section; ignoring $ cat $TESTTMP/single-feature-section New Features ============ Notes Feature ------------- This describes a feature from a release notes file. Commit Message Feature ---------------------- This describes a feature from a commit message. $ cd .. Bullets from rev merge with those from notes file. $ hg init bullets $ cd bullets $ touch fix1 $ hg -q commit -A -l - << EOF > commit 1 > > .. fix:: > > this is fix1. > EOF $ touch fix2 $ hg -q commit -A -l - << EOF > commit 2 > > .. fix:: > > this is fix2. > EOF $ hg releasenotes -r 'all()' $TESTTMP/relnotes-bullet-problem $ cat $TESTTMP/relnotes-bullet-problem Bug Fixes ========= * this is fix1. * this is fix2. $ touch fix3 $ hg -q commit -A -l - << EOF > commit 3 > > .. fix:: > > this is fix3. > EOF $ hg releasenotes -r . $TESTTMP/relnotes-bullet-problem $ cat $TESTTMP/relnotes-bullet-problem Bug Fixes ========= * this is fix1. * this is fix2. * this is fix3. $ cd .. Ignores commit messages containing issueNNNN based on issue number. $ hg init simple-fuzzrepo $ cd simple-fuzzrepo $ touch fix1 $ hg -q commit -A -l - << EOF > commit 1 > > .. fix:: > > Resolved issue4567. > EOF $ cat >> $TESTTMP/issue-number-notes << EOF > Bug Fixes > ========= > > * Fixed issue1234 related to XYZ. > > * Fixed issue4567 related to ABC. > > * Fixed issue3986 related to PQR. > EOF $ hg releasenotes -r . $TESTTMP/issue-number-notes "issue4567" already exists in notes; ignoring $ cat $TESTTMP/issue-number-notes Bug Fixes ========= * Fixed issue1234 related to XYZ. * Fixed issue4567 related to ABC. * Fixed issue3986 related to PQR. $ cd .. Adds short commit messages (words < 10) without comparison unless there is an exact match. $ hg init tempdir $ cd tempdir $ touch feature1 $ hg -q commit -A -l - << EOF > commit 1 > > .. feature:: > > Adds a new feature 1. > EOF $ hg releasenotes -r . $TESTTMP/short-sentence-notes $ touch feature2 $ hg -q commit -A -l - << EOF > commit 2 > > .. feature:: > > Adds a new feature 2. > EOF $ hg releasenotes -r . $TESTTMP/short-sentence-notes $ cat $TESTTMP/short-sentence-notes New Features ============ * Adds a new feature 1. * Adds a new feature 2. $ cd .. Ignores commit messages based on fuzzy comparison. $ hg init fuzznotes $ cd fuzznotes $ touch fix1 $ hg -q commit -A -l - << EOF > commit 1 > > .. fix:: > > This is a fix with another line. > And it is a big one. > EOF $ cat >> $TESTTMP/fuzz-ignore-notes << EOF > Bug Fixes > ========= > > * Fixed issue4567 by improving X. > > * This is the first line. This is next line with one newline. > > This is another line written after two newlines. This is going to be a big one. > > * This fixes another problem. > EOF $ hg releasenotes -r . $TESTTMP/fuzz-ignore-notes "This is a fix with another line. And it is a big one." already exists in notes file; ignoring $ cat $TESTTMP/fuzz-ignore-notes Bug Fixes ========= * Fixed issue4567 by improving X. * This is the first line. This is next line with one newline. This is another line written after two newlines. This is going to be a big one. * This fixes another problem.