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Halve the size of the fast tt lookup cache. This improves ppc32

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performance quite a bit, since the cache is emptied quite often on
ppc32, and a smaller cache is less intrusive in the real machine's L2
cache.  On x86 the change doesn't seem to have much effect.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4947
This commit is contained in:
Julian Seward 2005-10-19 11:23:07 +00:00
parent 073c102b95
commit a55c24c5d7
1 changed files with 1 additions and 1 deletions
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2
coregrind/pub_core_transtab_asm.h
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@ -32,7 +32,7 @@
#define __PUB_CORE_TRANSTAB_ASM_H
/* Constants for the fast translation lookup cache. */
#define VG_TT_FAST_BITS 16
#define VG_TT_FAST_BITS 15
#define VG_TT_FAST_SIZE (1 << VG_TT_FAST_BITS)
#define VG_TT_FAST_MASK ((VG_TT_FAST_SIZE) - 1)