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maps.RevMap: while loading, read lastpulled and firstpulled once

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Loading a million-entry revmap goes from 6.28 seconds to 3.82.
This commit is contained in:
Siddharth Agarwal 2014-11-02 01:23:47 -08:00
parent 96155571c7
commit 58517c3aab
1 changed files with 8 additions and 4 deletions
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12
hgsubversion/maps.py
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@ -222,6 +222,8 @@ class RevMap(dict):
@util.gcdisable
def _load(self):
lastpulled = self.meta.lastpulled
firstpulled = self.meta.firstpulled
for l in self.readmapfile(self.meta.revmap_file):
revnum, ha, branch = l.split(' ', 2)
if branch == '\n':
@ -229,11 +231,13 @@ class RevMap(dict):
else:
branch = branch[:-1]
revnum = int(revnum)
if revnum > self.meta.lastpulled or not self.meta.lastpulled:
self.meta.lastpulled = revnum
if revnum < self.meta.firstpulled or not self.meta.firstpulled:
self.meta.firstpulled = revnum
if revnum > lastpulled or not lastpulled:
lastpulled = revnum
if revnum < firstpulled or not firstpulled:
firstpulled = revnum
dict.__setitem__(self, (revnum, branch), node.bin(ha))
self.meta.lastpulled = lastpulled
self.meta.firstpulled = firstpulled
def _write(self):
f = open(self.meta.revmap_file, 'w')