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Bug 1044077 - Tweak some jemalloc constants. r=glandium.

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This commit is contained in:
Nicholas Nethercote 2015-07-14 20:35:37 -07:00
parent 67c6415331
commit a7eaacb3fa
2 changed files with 13 additions and 13 deletions
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22
memory/mozjemalloc/jemalloc.c
View File

@ -4227,7 +4227,7 @@ arena_malloc_small(arena_t *arena, size_t size, bool zero)
if (zero == false) {
#ifdef MALLOC_FILL
if (opt_junk)
memset(ret, 0xa5, size);
memset(ret, 0xe4, size);
else if (opt_zero)
memset(ret, 0, size);
#endif
@ -4263,7 +4263,7 @@ arena_malloc_large(arena_t *arena, size_t size, bool zero)
if (zero == false) {
#ifdef MALLOC_FILL
if (opt_junk)
memset(ret, 0xa5, size);
memset(ret, 0xe4, size);
else if (opt_zero)
memset(ret, 0, size);
#endif
@ -4365,7 +4365,7 @@ arena_palloc(arena_t *arena, size_t alignment, size_t size, size_t alloc_size)
#ifdef MALLOC_FILL
if (opt_junk)
memset(ret, 0xa5, size);
memset(ret, 0xe4, size);
else if (opt_zero)
memset(ret, 0, size);
#endif
@ -4586,7 +4586,7 @@ arena_dalloc_small(arena_t *arena, arena_chunk_t *chunk, void *ptr,
#ifdef MALLOC_FILL
if (opt_poison)
memset(ptr, 0x5a, size);
memset(ptr, 0xe5, size);
#endif
arena_run_reg_dalloc(run, bin, ptr, size);
@ -4679,7 +4679,7 @@ arena_dalloc_large(arena_t *arena, arena_chunk_t *chunk, void *ptr)
#ifdef MALLOC_STATS
if (opt_poison)
#endif
memset(ptr, 0x5a, size);
memset(ptr, 0xe5, size);
#endif
#ifdef MALLOC_STATS
arena->stats.allocated_large -= size;
@ -4818,7 +4818,7 @@ arena_ralloc_large(void *ptr, size_t size, size_t oldsize)
/* Same size class. */
#ifdef MALLOC_FILL
if (opt_poison && size < oldsize) {
memset((void *)((uintptr_t)ptr + size), 0x5a, oldsize -
memset((void *)((uintptr_t)ptr + size), 0xe5, oldsize -
size);
}
#endif
@ -4835,7 +4835,7 @@ arena_ralloc_large(void *ptr, size_t size, size_t oldsize)
#ifdef MALLOC_FILL
/* Fill before shrinking in order avoid a race. */
if (opt_poison) {
memset((void *)((uintptr_t)ptr + size), 0x5a,
memset((void *)((uintptr_t)ptr + size), 0xe5,
oldsize - size);
}
#endif
@ -4905,7 +4905,7 @@ arena_ralloc(void *ptr, size_t size, size_t oldsize)
IN_PLACE:
#ifdef MALLOC_FILL
if (opt_poison && size < oldsize)
memset((void *)((uintptr_t)ptr + size), 0x5a, oldsize - size);
memset((void *)((uintptr_t)ptr + size), 0xe5, oldsize - size);
else if (opt_zero && size > oldsize)
memset((void *)((uintptr_t)ptr + oldsize), 0, size - oldsize);
#endif
@ -5125,9 +5125,9 @@ huge_palloc(size_t size, size_t alignment, bool zero)
if (zero == false) {
if (opt_junk)
# ifdef MALLOC_DECOMMIT
memset(ret, 0xa5, psize);
memset(ret, 0xe4, psize);
# else
memset(ret, 0xa5, csize);
memset(ret, 0xe4, csize);
# endif
else if (opt_zero)
# ifdef MALLOC_DECOMMIT
@ -5154,7 +5154,7 @@ huge_ralloc(void *ptr, size_t size, size_t oldsize)
size_t psize = PAGE_CEILING(size);
#ifdef MALLOC_FILL
if (opt_poison && size < oldsize) {
memset((void *)((uintptr_t)ptr + size), 0x5a, oldsize
memset((void *)((uintptr_t)ptr + size), 0xe5, oldsize
- size);
}
#endif

4
memory/mozjemalloc/jemalloc_types.h
View File

@ -55,8 +55,8 @@ typedef struct {
* Run-time configuration settings.
*/
jemalloc_bool opt_abort; /* abort(3) on error? */
jemalloc_bool opt_junk; /* Fill allocated memory with 0xa5/0x5a? */
jemalloc_bool opt_poison; /* Fill free memory with 0xa5/0x5a? */
jemalloc_bool opt_junk; /* Fill allocated memory with 0xe4? */
jemalloc_bool opt_poison; /* Fill free memory with 0xe5? */
jemalloc_bool opt_utrace; /* Trace all allocation events? */
jemalloc_bool opt_sysv; /* SysV semantics? */
jemalloc_bool opt_xmalloc; /* abort(3) on OOM? */