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| author | Jason Evans <jasone@canonware.com> | 2015-03-06 20:05:16 -0800 |
|---|---|---|
| committer | Jason Evans <jasone@canonware.com> | 2015-03-06 20:18:34 -0800 |
| commit | f044bb219e9bfcc585f64f097e5ab0b5837c0451 (patch) | |
| tree | 8dc7080777b80e597e4eed3e1ad003243c300c49 /include/jemalloc/internal/chunk.h | |
| parent | 4d871f73af6b8310564dfcb63357dbfe8b1a1529 (diff) | |
| download | jemalloc-f044bb219e9bfcc585f64f097e5ab0b5837c0451.tar.gz | |
Change default chunk size from 4 MiB to 256 KiB.
Recent changes have improved huge allocation scalability, which removes
upward pressure to set the chunk size so large that huge allocations are
rare. Smaller chunks are more likely to completely drain, so set the
default to the smallest size that doesn't leave excessive unusable
trailing space in chunk headers.
Diffstat (limited to 'include/jemalloc/internal/chunk.h')
| -rw-r--r-- | include/jemalloc/internal/chunk.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/jemalloc/internal/chunk.h b/include/jemalloc/internal/chunk.h index 1a968a5..1af5b24 100644 --- a/include/jemalloc/internal/chunk.h +++ b/include/jemalloc/internal/chunk.h @@ -5,7 +5,7 @@ * Size and alignment of memory chunks that are allocated by the OS's virtual * memory system. */ -#define LG_CHUNK_DEFAULT 22 +#define LG_CHUNK_DEFAULT 18 /* Return the chunk address for allocation address a. */ #define CHUNK_ADDR2BASE(a) \ |