mirror of
https://github.com/torvalds/linux.git
synced 2024-11-28 07:01:32 +00:00
dfbca41f34
Currently the freq invariant accounting (in __update_entity_runnable_avg() and sched_rt_avg_update()) get the scale factor from a weak function call, this means that even for archs that default on their implementation the compiler cannot see into this function and optimize the extra scaling math away. This is sad, esp. since its a 64-bit multiplication which can be quite costly on some platforms. So replace the weak function with #ifdef and __always_inline goo. This is not quite as nice from an arch support PoV but should at least result in compile time errors if done wrong. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Ben Segall <bsegall@google.com> Cc: Morten.Rasmussen@arm.com Cc: Paul Turner <pjt@google.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: dietmar.eggemann@arm.com Cc: efault@gmx.de Cc: kamalesh@linux.vnet.ibm.com Cc: nicolas.pitre@linaro.org Cc: preeti@linux.vnet.ibm.com Cc: riel@redhat.com Link: http://lkml.kernel.org/r/20150323131905.GF23123@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|---|---|---|
| .. | ||
| auto_group.c | ||
| auto_group.h | ||
| clock.c | ||
| completion.c | ||
| core.c | ||
| cpuacct.c | ||
| cpuacct.h | ||
| cpudeadline.c | ||
| cpudeadline.h | ||
| cpupri.c | ||
| cpupri.h | ||
| cputime.c | ||
| deadline.c | ||
| debug.c | ||
| fair.c | ||
| features.h | ||
| idle_task.c | ||
| idle.c | ||
| Makefile | ||
| proc.c | ||
| rt.c | ||
| sched.h | ||
| stats.c | ||
| stats.h | ||
| stop_task.c | ||
| wait.c | ||