annotate rewrite-log @ 2474:1e32e2fe8a67

Fix cold cache diff performance cold cache diff performance has regressed in two ways. localrepo.changes has optimizations for diffing against the working dir parent that expect node1 to be None. commands.revpair() usage means that commands.dodiff() never sends node1 == None. This is fixed in localrepo.changes by checking against the dirstate parents. In the non-dirstate parents case, localrepo.changes does a loop comparing files without first sorting the file names, leading to random access across the disk.
author Chris Mason <mason@suse.com>
date Wed, 21 Jun 2006 09:28:48 -0700
parents 5f471a75d607
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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5f471a75d607 Simple script to recompress a log file
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1 #!/usr/bin/env python
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2 import sys, os
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3 from mercurial import hg
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4
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5 f = sys.argv[1]
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6
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7 r1 = hg.revlog(open, f + ".i", f + ".d")
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8 r2 = hg.revlog(open, f + ".i2", f + ".d2")
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9
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10 tr = hg.transaction(open, "journal")
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11
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12 for i in xrange(r1.count()):
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13 n = r1.node(i)
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14 p1, p2 = r1.parents(n)
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15 l = r1.linkrev(n)
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16 t = r1.revision(n)
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17 n2 = r2.addrevision(t, tr, l, p1, p2)
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18 tr.close()
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19
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20 os.rename(f + ".i", f + ".i.old")
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21 os.rename(f + ".d", f + ".d.old")
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22 os.rename(f + ".i2", f + ".i")
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23 os.rename(f + ".d2", f + ".d")