Mercurial > hg
view tests/revlog-formatv0.py @ 18272:95ef7a87c053
performance: speedup computation of hidden revisions
In their current state, revset calls can be very costlys, as we
test predicates on the entire repository. The hidden filter is very
widely used, and needs to be very fast.
This change drops revset calls in favor of direct revision manipulation.
Performance test on my Mercurial checkout
- 19857 total changesets,
- 1584 obsolete changesets,
- 13310 obsolescence markers.
Before:
! hidden
! wall 0.077553
After this changes:
! hidden
! wall 0.011230
Performance test on a Mozilla central checkout:
- 117293 total changesets,
- 1 obsolete changeset,
- 1 obsolescence marker.
Before:
! hidden
! wall 0.389472
After:
! hidden
! wall 0.000079
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
---|---|
date | Fri, 04 Jan 2013 05:44:01 +0100 |
parents | 581066a319e5 |
children | 05982f7ab231 |
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#!/usr/bin/env python # Copyright 2010 Intevation GmbH # Author(s): # Thomas Arendsen Hein <thomas@intevation.de> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. """Create a Mercurial repository in revlog format 0 changeset: 0:a1ef0b125355 tag: tip user: user date: Thu Jan 01 00:00:00 1970 +0000 files: empty description: empty file """ import os, sys files = [ ('formatv0/.hg/00changelog.i', '000000000000004400000000000000000000000000000000000000' '000000000000000000000000000000000000000000000000000000' '0000a1ef0b125355d27765928be600cfe85784284ab3'), ('formatv0/.hg/00changelog.d', '756163613935613961356635353036303562366138343738336237' '61623536363738616436356635380a757365720a3020300a656d70' '74790a0a656d7074792066696c65'), ('formatv0/.hg/00manifest.i', '000000000000003000000000000000000000000000000000000000' '000000000000000000000000000000000000000000000000000000' '0000aca95a9a5f550605b6a84783b7ab56678ad65f58'), ('formatv0/.hg/00manifest.d', '75656d707479006238306465356431333837353835343163356630' '35323635616431343461623966613836643164620a'), ('formatv0/.hg/data/empty.i', '000000000000000000000000000000000000000000000000000000' '000000000000000000000000000000000000000000000000000000' '0000b80de5d138758541c5f05265ad144ab9fa86d1db'), ('formatv0/.hg/data/empty.d', ''), ] def makedirs(name): """recursive directory creation""" parent = os.path.dirname(name) if parent: makedirs(parent) os.mkdir(name) makedirs(os.path.join(*'formatv0/.hg/data'.split('/'))) for name, data in files: f = open(name, 'wb') f.write(data.decode('hex')) f.close() sys.exit(0)