Mercurial > hg > mercurial-crew-with-dirclash
view rewrite-log @ 1534:80a3d6a0af71
Optimize manifest.add
Testing shows that manifest.add is spending a significant percentage of
its time running calcoffsets and doing text = "".join(addlist). This
patch removes the need for both of these by storying the manifest in a
character array, and using a modified bisect search to find lines without
the help of a separate index of line offsets.
manifest.add was also reworked to push delta construction/combination into the
main loop.
Time to apply 2751 patches (without psyco, ext3 noatime,data=writeback):
Stock hg: 4m45s real 3m32s user 55s sys
patched: 2m48s real 1m53s user 43s sys
quilt: 2m30s real 45s user 50s sys
(quilt does much more io...)
author | mason@suse.com |
---|---|
date | Fri, 11 Nov 2005 18:20:22 -0800 |
parents | 5f471a75d607 |
children |
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#!/usr/bin/env python import sys, os from mercurial import hg f = sys.argv[1] r1 = hg.revlog(open, f + ".i", f + ".d") r2 = hg.revlog(open, f + ".i2", f + ".d2") tr = hg.transaction(open, "journal") for i in xrange(r1.count()): n = r1.node(i) p1, p2 = r1.parents(n) l = r1.linkrev(n) t = r1.revision(n) n2 = r2.addrevision(t, tr, l, p1, p2) tr.close() os.rename(f + ".i", f + ".i.old") os.rename(f + ".d", f + ".d.old") os.rename(f + ".i2", f + ".i") os.rename(f + ".d2", f + ".d")