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platforms define as 512K. For 64-bit platforms as 32MB. The lower

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Ulrich Drepper
2006-08-22 06:42:35 +00:00
parent e404fb16fc
commit bd2c234116
3 changed files with 6 additions and 6 deletions
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8
malloc/malloc.c
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@ -1427,12 +1427,12 @@ int __posix_memalign(void **, size_t, size_t);
#ifndef DEFAULT_MMAP_THRESHOLD_MAX
/* For 32-bit platforms we cannot increase the maximum mmap
threshold much because it is also the minimum value for the
maximum heap size and its alignment. Going above 1MB wastes too
much address space. */
maximum heap size and its alignment. Going above 512k (i.e., 1M
for new heaps) wastes too much address space. */
# if __WORDSIZE == 32
# define DEFAULT_MMAP_THRESHOLD_MAX (1024 * 1024)
# define DEFAULT_MMAP_THRESHOLD_MAX (512 * 1024)
# else
# define DEFAULT_MMAP_THRESHOLD_MAX (8 * 1024 * 1024 * sizeof(long))
# define DEFAULT_MMAP_THRESHOLD_MAX (4 * 1024 * 1024 * sizeof(long))
# endif
#endif