Mercurial > hg
view tests/test-context.py @ 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> |
---|---|
date | Thu, 12 Apr 2012 14:05:59 -0700 |
parents | bd23d5f28bbb |
children | 503bb3af70fe |
line wrap: on
line source
import os from mercurial import hg, ui, context, encoding u = ui.ui() repo = hg.repository(u, 'test1', create=1) os.chdir('test1') # create 'foo' with fixed time stamp f = open('foo', 'w') f.write('foo\n') f.close() os.utime('foo', (1000, 1000)) # add+commit 'foo' repo[None].add(['foo']) repo.commit(text='commit1', date="0 0") print "workingfilectx.date =", repo[None]['foo'].date() # test memctx with non-ASCII commit message def filectxfn(repo, memctx, path): return context.memfilectx("foo", "") ctx = context.memctx(repo, ['tip', None], encoding.tolocal("Gr\xc3\xbcezi!"), ["foo"], filectxfn) ctx.commit() for enc in "ASCII", "Latin-1", "UTF-8": encoding.encoding = enc print "%-8s: %s" % (enc, repo["tip"].description())