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update

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git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5434
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Nicholas Nethercote 2005-12-25 03:33:12 +00:00
parent e830c38ce8
commit 856002e089
1 changed files with 3 additions and 0 deletions
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3
docs/internals/performance.txt
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@ -23,6 +23,9 @@ Post 3.1.0:
- Julian changed findSb to slowly move superblocks to the front of the list
as they were accessed. This sped up perf/heap by 25--50%, and some big
programs (eg. ktuberling) programs by a couple of percent.
- Nick reduced the iteration count of the loop in swizzle() from 20 to 5,
which gave almost identical results while saving 2% in perf/tinycc and 10%
in perf/heap on a 3GHz Prescott P4.
COMPVBITS branch:
- Nick converted to compress V bits, initial version saved 0--5% on most