Mercurial > hg
view tests/test-filelog.py @ 18063:34a1a639d835
revset.children: ignore rev numbers that are too low
This replaces unnecessary parentrevs() calls with calculating min(parentset).
Even though the min operation is O(size of parentset), since parentrevs is
relatively expensive, this tradeoff almost always works in our favour. In a
repository with over 400,000 changesets, hg perfrevset "children(X)" takes:
Set X Before After
-1 0.51s 0.06s
-1000: 0.55s 0.08s
-10000: 0.56s 0.10s
-100000: 0.60s 0.25s
-100000:-99000 0.55s 0.19s
0:100000 0.60s 0.61s
all() 0.72s 0.74s
The relative performance is similar for Mercurial's own repository -- several
times faster in most cases, slightly slower for revisions close to 0 and
all().
author | Siddharth Agarwal <sid0@fb.com> |
---|---|
date | Fri, 07 Dec 2012 10:37:43 -0800 |
parents | 73e3e368bd42 |
children | 2761a791b113 |
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#!/usr/bin/env python """ Tests the behaviour of filelog w.r.t. data starting with '\1\n' """ from mercurial import ui, hg from mercurial.node import nullid, hex myui = ui.ui() repo = hg.repository(myui, path='.', create=True) fl = repo.file('foobar') def addrev(text, renamed=False): if renamed: # data doesn't matter. Just make sure filelog.renamed() returns True meta = dict(copyrev=hex(nullid), copy='bar') else: meta = {} lock = t = None try: lock = repo.lock() t = repo.transaction('commit') node = fl.add(text, meta, t, 0, nullid, nullid) return node finally: if t: t.close() if lock: lock.release() def error(text): print 'ERROR: ' + text textwith = '\1\nfoo' without = 'foo' node = addrev(textwith) if not textwith == fl.read(node): error('filelog.read for data starting with \\1\\n') if fl.cmp(node, textwith) or not fl.cmp(node, without): error('filelog.cmp for data starting with \\1\\n') if fl.size(0) != len(textwith): error('FIXME: This is a known failure of filelog.size for data starting ' 'with \\1\\n') node = addrev(textwith, renamed=True) if not textwith == fl.read(node): error('filelog.read for a renaming + data starting with \\1\\n') if fl.cmp(node, textwith) or not fl.cmp(node, without): error('filelog.cmp for a renaming + data starting with \\1\\n') if fl.size(1) != len(textwith): error('filelog.size for a renaming + data starting with \\1\\n') print 'OK.'