Dave Watson 4a0dbb5ac8 Use pairing heap for arena->runs_avail ... Use pairing heap instead of red black tree in arena runs_avail. The extra links are unioned with the bitmap_t, so this change doesn't use any extra memory. Canaries show this change to be a 1% cpu win, and 2% latency win. In particular, large free()s, and small bin frees are now O(1) (barring coalescing). I also tested changing bin->runs to be a pairing heap, but saw a much smaller win, and it would mean increasing the size of arena_run_s by two pointers, so I left that as an rb-tree for now.		2016-03-08 13:48:27 -08:00
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jemalloc	Use pairing heap for arena->runs_avail	2016-03-08 13:48:27 -08:00
msvc_compat	Remove errno overrides.	2016-02-29 10:45:49 -08:00