# HG changeset patch
# User Boris Feld <boris.f...@octobus.net>
# Date 1542931777 -3600
# Fri Nov 23 01:09:37 2018 +0100
# Node ID fb12c8325cea684942d949ff5ee913d90bf2d6e0
# Parent ef17ac4ed0534a809c978c5677355d436ce90db9
# EXP-Topic perf-branchmap
# Available At https://bitbucket.org/octobus/mercurial-devel/
# hg pull https://bitbucket.org/octobus/mercurial-devel/ -r
fb12c8325cea
perf: add a `--clear-caches` to `perfbranchmapupdate`
This flag will help to measure the time we spend loading various cache that
support the branchmap update.
Example for an 500 000 revisions repository:
hg perfbranchmapupdate --base 'not tip' --target 'tip'
! wall 0.000860 comb 0.000000 user 0.000000 sys 0.000000 (best of 336)
hg perfbranchmapupdate --base 'not tip' --target 'tip' --clear-caches
! wall 0.029494 comb 0.030000 user 0.030000 sys 0.000000 (best of 100)
diff --git a/contrib/perf.py b/contrib/perf.py
--- a/contrib/perf.py
+++ b/contrib/perf.py
@@ -2186,10 +2186,16 @@ def perfbranchmap(ui, repo, *filternames
@command(b'perfbranchmapupdate', [
(b'', b'base', [], b'subset of revision to start from'),
(b'', b'target', [], b'subset of revision to end with'),
+ (b'', b'clear-caches', False, b'clear cache between each runs')
] + formatteropts)
def perfbranchmapupdate(ui, repo, base=(), target=(), **opts):
"""benchmark branchmap update from for <base> revs to <target> revs
+ if `--clear-caches` is passed, the following items will be reset before
+ each update:
+ * the changelog instance and associated indexes
+ * the rev-branch-cache instance
+
Examples:
# update for the one last revision
@@ -2202,6 +2208,7 @@ def perfbranchmapupdate(ui, repo, base=(
from mercurial import repoview
opts = _byteskwargs(opts)
timer, fm = gettimer(ui, opts)
+ clearcaches = opts['clear_caches']
unfi = repo.unfiltered()
x = [None] # used to pass data between closure
@@ -2267,6 +2274,9 @@ def perfbranchmapupdate(ui, repo, base=(
def setup():
x[0] = base.copy()
+ if clearcaches:
+ unfi._revbranchcache = None
+ clearchangelog(repo)
def bench():
x[0].update(targetrepo, newrevs)
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