| commit | 3f6bb8a32e5f5efd78ac08c41e623651cc242a89 | |
| author | Wilco Dijkstra <wdijkstr@arm.com> | |
| Tue, 24 Oct 2017 11:39:24 +0000 (24 12:39 +0100) | ||
| committer | Wilco Dijkstra <wdijkstr@arm.com> | |
| Tue, 24 Oct 2017 11:39:24 +0000 (24 12:39 +0100) | ||
| tree | 268b445ef692deca0158cdd4832b0cc925538703 | treesnapshot (tar.gz zip) |
| parent | 1d479c8c33bab8c47f66c2199a353b5459881be3 | commitdiff |
Add single-threaded path to malloc/realloc/calloc/memalloc
This patch adds a single-threaded fast path to malloc, realloc,
calloc and memalloc. When we're single-threaded, we can bypass
arena_get (which always locks the arena it returns) and just use
the main arena. Also avoid retrying a different arena since
there is just the main arena.
* malloc/malloc.c (__libc_malloc): Add SINGLE_THREAD_P path.
(__libc_realloc): Likewise.
(_mid_memalign): Likewise.
(__libc_calloc): Likewise.
This patch adds a single-threaded fast path to malloc, realloc,
calloc and memalloc. When we're single-threaded, we can bypass
arena_get (which always locks the arena it returns) and just use
the main arena. Also avoid retrying a different arena since
there is just the main arena.
* malloc/malloc.c (__libc_malloc): Add SINGLE_THREAD_P path.
(__libc_realloc): Likewise.
(_mid_memalign): Likewise.
(__libc_calloc): Likewise.
| ChangeLog | diffblobblamehistory | |
| malloc/malloc.c | diffblobblamehistory |