contrib/plan9/proto
author Martin Geisler <mg@aragost.com>
Mon, 23 Jul 2012 15:55:26 -0600
branchstable
changeset 17236 9fb8312dbdbd
parent 16489 cf137319c6cd
permissions -rw-r--r--
encoding: add fast-path for ASCII uppercase. This copies the performance hack from encoding.lower (c481761033bd). The case-folding logic that kicks in on case-insensitive filesystems hits encoding.upper hard: with a repository with 75k files, the timings went from hg perfstatus ! wall 3.156000 comb 3.156250 user 1.625000 sys 1.531250 (best of 3) to hg perfstatus ! wall 2.390000 comb 2.390625 user 1.078125 sys 1.312500 (best of 5) This is a 24% decrease. For comparison, Mercurial 2.0 gives: hg perfstatus ! wall 2.172000 comb 2.171875 user 0.984375 sys 1.187500 (best of 5) so we're only 10% slower than before we added the extra case-folding logic. The same decrease is seen when executing 'hg status' as normal, where we go from: hg status --time time: real 4.322 secs (user 2.219+0.000 sys 2.094+0.000) to hg status --time time: real 3.307 secs (user 1.750+0.000 sys 1.547+0.000)
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	mercurial	- sys sys
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			9diff.rc	- sys sys
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				python2.5	- sys sys
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					site-packages	- sys sys
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						hgext	- sys sys
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						mercurial	- sys sys
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						mercurial-VERSION-py2.5.egg-info	- sys sys
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	src	- sys sys
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		cmd	- sys sys
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			hg	- sys sys
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