Mercurial > hg
view tests/test-mac-packages.t @ 47120:7109a38830c9
dirstate-tree: Fold "tracked descendants" counter update in main walk
For the purpose of implementing `has_tracked_dir` (which means "has tracked
descendants) without an expensive sub-tree traversal, we maintaing a counter
of tracked descendants on each "directory" node of the tree-shaped dirstate.
Before this changeset, mutating or inserting a node at a given path would
involve:
* Walking the tree from root through ancestors to find the node or the spot
where to insert it
* Looking at the previous node if any to decide what counter update is needed
* Performing any node mutation
* Walking the tree *again* to update counters in ancestor nodes
When profiling `hg status` on a large repo, this second walk takes times
while loading a the dirstate from disk.
It turns out we have enough information to decide before he first tree walk
what counter update is needed. This changeset merges the two walks, gaining
~10% of the total time for `hg update` (in the same hyperfine benchmark as
the previous changeset).
---
Profiling was done by compiling with this `.cargo/config`:
[profile.release]
debug = true
then running with:
py-spy record -r 500 -n -o /tmp/hg.json --format speedscope -- \
./hg status -R $REPO --config experimental.dirstate-tree.in-memory=1
then visualizing the recorded JSON file in https://www.speedscope.app/
Differential Revision: https://phab.mercurial-scm.org/D10554
author | Simon Sapin <simon.sapin@octobus.net> |
---|---|
date | Fri, 30 Apr 2021 14:22:14 +0200 |
parents | 283a7da602ae |
children | 8d7eaff92f9c |
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#require test-repo slow osx osxpackaging $ . "$TESTDIR/helpers-testrepo.sh" $ testrepohgenv $ OUTPUTDIR="`pwd`" $ export OUTPUTDIR $ KEEPMPKG=yes $ export KEEPMPKG $ cd "$TESTDIR"/.. $ contrib/genosxversion.py --selftest ignoredarg $ make osx > "$OUTPUTDIR/build.log" 2>&1 $ cd "$OUTPUTDIR" $ ls -d *.pkg Mercurial-*-macosx10.*.pkg (glob) $ xar -xf Mercurial*.pkg Gather list of all installed files: $ lsbom mercurial.pkg/Bom > boms.txt We've had problems with the filter logic in the past. Make sure no .DS_Store files ended up in the final package: $ grep DS_S boms.txt [1] Spot-check some randomly selected files: $ grep bdiff boms.txt | cut -d ' ' -f 1,2,3 ./Library/Python/2.7/site-packages/mercurial/cext/bdiff.so 100755 0/0 ./Library/Python/2.7/site-packages/mercurial/cffi/bdiff.py 100644 0/0 ./Library/Python/2.7/site-packages/mercurial/cffi/bdiff.pyc 100644 0/0 ./Library/Python/2.7/site-packages/mercurial/cffi/bdiff.pyo 100644 0/0 ./Library/Python/2.7/site-packages/mercurial/cffi/bdiffbuild.py 100644 0/0 ./Library/Python/2.7/site-packages/mercurial/cffi/bdiffbuild.pyc 100644 0/0 ./Library/Python/2.7/site-packages/mercurial/cffi/bdiffbuild.pyo 100644 0/0 ./Library/Python/2.7/site-packages/mercurial/pure/bdiff.py 100644 0/0 ./Library/Python/2.7/site-packages/mercurial/pure/bdiff.pyc 100644 0/0 ./Library/Python/2.7/site-packages/mercurial/pure/bdiff.pyo 100644 0/0 $ grep zsh/site-functions/_hg boms.txt | cut -d ' ' -f 1,2,3 ./usr/local/share/zsh/site-functions/_hg 100644 0/0 $ grep hg-completion.bash boms.txt | cut -d ' ' -f 1,2,3 ./usr/local/hg/contrib/hg-completion.bash 100644 0/0 $ egrep 'man[15]' boms.txt | cut -d ' ' -f 1,2,3 ./usr/local/share/man/man1 40755 0/0 ./usr/local/share/man/man1/chg.1 100644 0/0 ./usr/local/share/man/man1/hg.1 100644 0/0 ./usr/local/share/man/man5 40755 0/0 ./usr/local/share/man/man5/hgignore.5 100644 0/0 ./usr/local/share/man/man5/hgrc.5 100644 0/0 $ grep bser boms.txt | cut -d ' ' -f 1,2,3 ./Library/Python/2.7/site-packages/hgext/fsmonitor/pywatchman/bser.so 100755 0/0 ./Library/Python/2.7/site-packages/hgext/fsmonitor/pywatchman/pybser.py 100644 0/0 ./Library/Python/2.7/site-packages/hgext/fsmonitor/pywatchman/pybser.pyc 100644 0/0 ./Library/Python/2.7/site-packages/hgext/fsmonitor/pywatchman/pybser.pyo 100644 0/0 $ grep localrepo boms.txt | cut -d ' ' -f 1,2,3 ./Library/Python/2.7/site-packages/mercurial/localrepo.py 100644 0/0 ./Library/Python/2.7/site-packages/mercurial/localrepo.pyc 100644 0/0 ./Library/Python/2.7/site-packages/mercurial/localrepo.pyo 100644 0/0 $ egrep 'bin/' boms.txt | cut -d ' ' -f 1,2,3 ./usr/local/bin/chg 100755 0/0 ./usr/local/bin/hg 100755 0/0 Make sure the built binary uses the system Python interpreter $ bsdtar xf mercurial.pkg/Payload usr/local/bin Use a glob to find this to avoid check-code whining about a fixed path. $ head -n 1 usr/local/b?n/hg #!/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python Note that we're not currently installing any /etc/mercurial stuff, including merge-tool configurations.