Mercurial > hg > mercurial-crew-with-dirclash
annotate 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 |
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date | Fri, 11 Nov 2005 18:20:22 -0800 |
parents | 5f471a75d607 |
children |
rev | line source |
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141 | 1 #!/usr/bin/env python |
2 import sys, os | |
3 from mercurial import hg | |
4 | |
5 f = sys.argv[1] | |
6 | |
7 r1 = hg.revlog(open, f + ".i", f + ".d") | |
8 r2 = hg.revlog(open, f + ".i2", f + ".d2") | |
9 | |
10 tr = hg.transaction(open, "journal") | |
11 | |
12 for i in xrange(r1.count()): | |
13 n = r1.node(i) | |
14 p1, p2 = r1.parents(n) | |
15 l = r1.linkrev(n) | |
16 t = r1.revision(n) | |
17 n2 = r2.addrevision(t, tr, l, p1, p2) | |
18 tr.close() | |
19 | |
20 os.rename(f + ".i", f + ".i.old") | |
21 os.rename(f + ".d", f + ".d.old") | |
22 os.rename(f + ".i2", f + ".i") | |
23 os.rename(f + ".d2", f + ".d") |