Alexander Shishkin 487f05e18a perf/core: Optimize event rescheduling on active contexts ... When new events are added to an active context, we go and reschedule all cpu groups and all task groups in order to preserve the priority (cpu pinned, task pinned, cpu flexible, task flexible), but in reality we only need to reschedule groups of the same priority as that of the events being added, and below. This patch changes the behavior so that only groups that need to be rescheduled are rescheduled. Reported-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: vince@deater.net Link: http://lkml.kernel.org/r/20170119164330.22887-3-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2017-01-30 12:01:15 +01:00
..
callchain.c	perf core: Per event callchain limit	2016-05-30 12:41:44 -03:00
core.c	perf/core: Optimize event rescheduling on active contexts	2017-01-30 12:01:15 +01:00
hw_breakpoint.c	perf: Collapse and fix event_function_call() users	2016-01-21 18:54:24 +01:00
internal.h	bpf, events: fix offset in skb copy handler	2016-07-25 10:34:11 -07:00
Makefile	ftrace: allow architectures to specify ftrace compile options	2015-01-29 09:19:19 +01:00
ring_buffer.c	perf/core: Fix aux_mmap_count vs aux_refcount order	2016-09-10 11:15:36 +02:00
uprobes.c	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-12-23 16:49:12 -08:00