sched, trace: Add a tracepoint for IPI-less remote wakeups
authorAndy Lutomirski <luto@amacapital.net>
Wed, 4 Jun 2014 17:31:15 +0000 (10:31 -0700)
committerIngo Molnar <mingo@kernel.org>
Thu, 5 Jun 2014 10:09:50 +0000 (12:09 +0200)
commitdfc68f29ae67f2a6e799b44e6a4eb3417dffbfcd
tree3c91426549e3e5e5c04104f083150e8aa7994cdc
parent84c407084137d4e491b07ea5ff8665d19106a5ac
sched, trace: Add a tracepoint for IPI-less remote wakeups

Remote wakeups of polling CPUs are a valuable performance
improvement; add a tracepoint to make it much easier to verify that
they're working.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: nicolas.pitre@linaro.org
Cc: daniel.lezcano@linaro.org
Cc: umgwanakikbuti@gmail.com
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/16205aee116772aa686814f9b13bccb562108047.1401902905.git.luto@amacapital.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
include/trace/events/sched.h
kernel/sched/core.c