Qi Wang ec532e2c5c Implement per-CPU arena. ... The new feature, opt.percpu_arena, determines thread-arena association dynamically based CPU id. Three modes are supported: "percpu", "phycpu" and disabled. "percpu" uses the current core id (with help from sched_getcpu()) directly as the arena index, while "phycpu" will assign threads on the same physical CPU to the same arena. In other words, "percpu" means # of arenas == # of CPUs, while "phycpu" has # of arenas == 1/2 * (# of CPUs). Note that no runtime check on whether hyper threading is enabled is added yet. When enabled, threads will be migrated between arenas when a CPU change is detected. In the current design, to reduce overhead from reading CPU id, each arena tracks the thread accessed most recently. When a new thread comes in, we will read CPU id and update arena if necessary.		2017-03-08 23:19:01 -08:00
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include/test	Disentangle assert and util	2017-03-06 15:08:43 -08:00
integration	Implement per-CPU arena.	2017-03-08 23:19:01 -08:00
src	Replace tabs following #define with spaces.	2017-01-20 21:45:53 -08:00
stress	Remove extraneous parens around return arguments.	2017-01-20 21:43:07 -08:00
unit	Implement per-CPU arena.	2017-03-08 23:19:01 -08:00
test.sh.in	Use MALLOC_CONF rather than malloc_conf for tests.	2017-02-23 08:57:02 -08:00