Mercurial > hg
view tests/test-push-hook-lock.t @ 16414:e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
This greatly speeds up node->rev lookups, with results that are
often user-perceptible: for instance, "hg --time log" of the node
associated with rev 1000 on a linux-2.6 repo improves from 0.3
seconds to 0.03. I have not found any instances of slowdowns.
The new perfnodelookup command in contrib/perf.py demonstrates the
speedup more dramatically, since it performs no I/O. For a single
lookup, the new code is about 40x faster.
These changes also prepare the ground for the possibility of further
improving the performance of prefix-based node lookups.
author | Bryan O'Sullivan <bryano@fb.com> |
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date | Thu, 12 Apr 2012 14:05:59 -0700 |
parents | 28e2e3804f2e |
children | 4e0b696a1cb3 |
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$ hg init 1 $ echo '[ui]' >> 1/.hg/hgrc $ echo 'timeout = 10' >> 1/.hg/hgrc $ echo foo > 1/foo $ hg --cwd 1 ci -A -m foo adding foo $ hg clone 1 2 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone 2 3 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo '[hooks]' >> 2/.hg/hgrc $ echo 'changegroup.push = hg push -qf ../1' >> 2/.hg/hgrc $ echo bar >> 3/foo $ hg --cwd 3 ci -m bar $ hg --cwd 3 push ../2 pushing to ../2 searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files