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Optimize Valgrind integration.

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Forcefully disable tcache if running inside Valgrind, and remove
Valgrind calls in tcache-specific code.

Restructure Valgrind-related code to move most Valgrind calls out of the
fast path functions.

Take advantage of static knowledge to elide some branches in
JEMALLOC_VALGRIND_REALLOC().
This commit is contained in:
Jason Evans
2014-04-15 16:35:08 -07:00
parent ecd3e59ca3
commit bd87b01999
12 changed files with 231 additions and 136 deletions
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7
include/jemalloc/internal/tcache.h
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@@ -314,13 +314,11 @@ tcache_alloc_small(tcache_t *tcache, size_t size, bool zero)
} else if (opt_zero)
memset(ret, 0, size);
}
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
} else {
if (config_fill && opt_junk) {
arena_alloc_junk_small(ret, &arena_bin_info[binind],
true);
}
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
memset(ret, 0, size);
}
@@ -369,11 +367,8 @@ tcache_alloc_large(tcache_t *tcache, size_t size, bool zero)
else if (opt_zero)
memset(ret, 0, size);
}
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
} else {
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
} else
memset(ret, 0, size);
}
if (config_stats)
tbin->tstats.nrequests++;