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Differential D4371

treemanifest: use visitchildrenset when doing a walk
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Authored by spectral on Aug 24 2018, 1:36 AM.

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rHG3ba9ef0fb693: treemanifest: use visitchildrenset when doing a walk
Summary

For this series, starting at 'introduce lazy loading of subdirs' and ending with
this commit, we get the following timing numbers, using roughly the same
methodology and setup that we did in an earlier commit.

"before" is 6268fed3.

diff --git:
repo  | N | T | before (mean +- stdev) | after (mean +- stdev) | % of before
------+---+---+------------------------+-----------------------+------------
m-u   |   |   | 1.585 s +-  0.034 s    | 1.574 s +-  0.045 s   |  99.3%
m-u   |   | x | 1.591 s +-  0.024 s    | 1.601 s +-  0.034 s   | 100.6%
m-u   | x |   | 1.579 s +-  0.032 s    | 1.603 s +-  0.029 s   | 101.5%
m-u   | x | x | 109.8 ms +-   2.1 ms   | 108.8 ms +-   2.2 ms  |  99.1%
l-d-r |   |   | 234.6 ms +-   5.1 ms   | 240.1 ms +-   7.9 ms  | 102.3%
l-d-r |   | x | 238.3 ms +-   8.1 ms   | 232.2 ms +-   6.3 ms  |  97.4%
l-d-r | x |   | 120.0 ms +-   2.7 ms   | 119.6 ms +-   2.1 ms  |  99.7%
l-d-r | x | x | 120.2 ms +-   1.6 ms   | 119.1 ms +-   1.6 ms  |  99.1%

diff -c . --git:
repo  | N | T | before (mean +- stdev) | after (mean +- stdev) | % of before
------+---+---+------------------------+-----------------------+------------
m-u   |   |   | 356.9 ms +-   5.6 ms   | 355.9 ms +-   5.6 ms  |  99.7%
m-u   |   | x | 209.1 ms +-   3.3 ms   | 205.8 ms +-   2.6 ms  |  98.4%
m-u   | x |   | 418.3 ms +-  14.0 ms   | 350.8 ms +-   7.7 ms  |  83.9% <--
m-u   | x | x | 168.3 ms +-   1.5 ms   | 168.1 ms +-   2.7 ms  |  99.9%
l-d-r |   |   | 100.5 ms +-   2.1 ms   | 99.1 ms +-   1.6 ms   |  98.6%
l-d-r |   | x | 5.672 s +-  0.133 s    | 4.335 s +-  0.051 s   |  76.4% <--
l-d-r | x |   | 102.8 ms +-   2.8 ms   | 100.4 ms +-   1.7 ms  |  97.7%
l-d-r | x | x | 1.025 s +-  0.028 s    | 875.9 ms +-  12.1 ms  |  85.5% <--

rebase -r . --keep -d .^^:
repo  | N | T | before (mean +- stdev) | after (mean +- stdev) | % of before
------+---+---+------------------------+-----------------------+------------
m-u   |   |   | 6.654 s +-  0.137 s    | 6.718 s +-  0.046 s   | 101.0%
m-u   |   | x | 6.672 s +-  0.104 s    | 6.716 s +-  0.143 s   | 100.7%
m-u   | x |   | 6.661 s +-  0.072 s    | 6.658 s +-  0.066 s   | 100.0%
m-u   | x | x | 696.0 ms +-  49.0 ms   | 696.2 ms +-  54.8 ms  | 100.0%
l-d-r |   |   | 789.1 ms +-  12.5 ms   | 793.5 ms +-  17.3 ms  | 100.6%
l-d-r |   | x | 7.621 s +-  0.194 s    | 7.144 s +-  0.116 s   |  93.7% <--
l-d-r | x |   | 335.4 ms +-   9.7 ms   | 339.6 ms +-  10.8 ms  | 101.3%
l-d-r | x | x | 6.315 s +-  0.085 s    | 5.633 s +-  0.105 s   |  89.2% <--

status --change . --copies:
repo  | N | T | before (mean +- stdev) | after (mean +- stdev) | % of before
------+---+---+------------------------+-----------------------+------------
m-u   |   |   | 331.2 ms +-   7.0 ms   | 335.1 ms +-   6.5 ms  | 101.2%
m-u   |   | x | 184.0 ms +-   3.8 ms   | 183.1 ms +-   3.4 ms  |  99.5%
m-u   | x |   | 330.5 ms +-   7.2 ms   | 332.7 ms +-   6.9 ms  | 100.7%
m-u   | x | x | 148.7 ms +-   3.5 ms   | 147.5 ms +-   2.2 ms  |  99.2%
l-d-r |   |   | 97.3 ms +-   1.3 ms    | 98.2 ms +-   2.5 ms   | 100.9%
l-d-r |   | x | 5.196 s +-  0.030 s    | 4.281 s +-  0.025 s   |  82.4% <--
l-d-r | x |   | 101.4 ms +-   3.1 ms   | 100.9 ms +-   1.8 ms  |  99.5%
l-d-r | x | x | 1.015 s +-  0.018 s    | 861.2 ms +-  11.2 ms  |  84.8% <--

status --copies:
repo  | N | T | before (mean +- stdev) | after (mean +- stdev) | % of before
------+---+---+------------------------+-----------------------+------------
m-u   |   |   | 2.356 s +-  0.032 s    | 2.369 s +-  0.027 s   | 100.6%
m-u   |   | x | 2.371 s +-  0.041 s    | 2.385 s +-  0.028 s   | 100.6%
m-u   | x |   | 2.366 s +-  0.036 s    | 2.379 s +-  0.030 s   | 100.5%
m-u   | x | x | 121.8 ms +-   3.8 ms   | 121.1 ms +-   2.7 ms  |  99.4%
l-d-r |   |   | 726.2 ms +-  12.9 ms   | 723.1 ms +-  12.7 ms  |  99.6%
l-d-r |   | x | 738.7 ms +-  11.2 ms   | 741.3 ms +-  11.1 ms  | 100.4%
l-d-r | x |   | 215.9 ms +-   3.6 ms   | 214.7 ms +-   5.9 ms  |  99.4%
l-d-r | x | x | 213.1 ms +-   2.5 ms   | 212.8 ms +-   4.5 ms  |  99.9%

update $rev^; ~/src/hg/hg{hg}/hg update $rev:
repo  | N | T | before (mean +- stdev) | after (mean +- stdev) | % of before
------+---+---+------------------------+-----------------------+------------
m-u   |   |   | 3.922 s +-  0.045 s    | 3.937 s +-  0.034 s   | 100.4%
m-u   |   | x | 3.673 s +-  0.028 s    | 3.660 s +-  0.035 s   |  99.6%
m-u   | x |   | 3.959 s +-  0.073 s    | 3.904 s +-  0.051 s   |  98.6%
m-u   | x | x | 417.0 ms +-  13.0 ms   | 406.2 ms +-   6.5 ms  |  97.4%
l-d-r |   |   | 534.3 ms +-  12.2 ms   | 537.9 ms +-   8.8 ms  | 100.7%
l-d-r |   | x | 10.671 s +-  0.275 s   | 10.111 s +-  0.114 s  |  94.8% <--
l-d-r | x |   | 309.7 ms +-   3.5 ms   | 307.9 ms +-   4.0 ms  |  99.4%
l-d-r | x | x | 1.837 s +-  0.014 s    | 1.887 s +-  0.035 s   | 102.7%

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Event Timeline

spectral created this revision.Aug 24 2018, 1:36 AM
spectral updated this revision to Diff 10837.Sep 7 2018, 4:07 PM
spectral edited the summary of this revision. (Show Details)Sep 7 2018, 4:48 PM
spectral edited the summary of this revision. (Show Details)Sep 7 2018, 9:22 PM
spectral updated this revision to Diff 10839.
Closed by commit rHG3ba9ef0fb693: treemanifest: use visitchildrenset when doing a walk (authored by spectral). · Explain WhySep 11 2018, 8:36 AM
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathPackages
Mmercurial/manifest.py (10 lines)

Diff 10839

mercurial/manifest.py

fset.discard('.') fset.discard('.')
for fn in sorted(fset): for fn in sorted(fset):
if not self.hasdir(fn): if not self.hasdir(fn):
match.bad(fn, None) match.bad(fn, None)
def _walk(self, match): def _walk(self, match):
'''Recursively generates matching file names for walk().''' '''Recursively generates matching file names for walk().'''
if not match.visitdir(self._dir[:-1] or '.'): visit = match.visitchildrenset(self._dir[:-1] or '.')
if not visit:
return return
# yield this dir's files and walk its submanifests # yield this dir's files and walk its submanifests
self._load() self._load()
self._loadalllazy() visit = self._loadchildrensetlazy(visit)
for p in sorted(list(self._dirs) + list(self._files)): for p in sorted(list(self._dirs) + list(self._files)):
if p in self._files: if p in self._files:
fullp = self._subpath(p) fullp = self._subpath(p)
if match(fullp): if match(fullp):
yield fullp yield fullp
else: else:
if not visit or p[:-1] in visit:
for f in self._dirs[p]._walk(match): for f in self._dirs[p]._walk(match):
yield f yield f
def matches(self, match): def matches(self, match):
'''generate a new manifest filtered by the match argument''' '''generate a new manifest filtered by the match argument'''
if match.always(): if match.always():
return self.copy() return self.copy()
return self._matches(match) return self._matches(match)