OpenCloudOS-Kernel/include
Alexey Budankov 101592b490 perf/core: Store context switch out type in PERF_RECORD_SWITCH[_CPU_WIDE]
Store preempting context switch out event into Perf trace as a part of
PERF_RECORD_SWITCH[_CPU_WIDE] record.

Percentage of preempting and non-preempting context switches help
understanding the nature of workloads (CPU or IO bound) that are running
on a machine;

The event is treated as preemption one when task->state value of the
thread being switched out is TASK_RUNNING. Event type encoding is
implemented using PERF_RECORD_MISC_SWITCH_OUT_PREEMPT bit;

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/9ff84e83-a0ca-dd82-a6d0-cb951689be74@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-04-17 09:47:39 -03:00
..
acpi xen: fixes for 4.17-rc1 2018-04-12 11:04:35 -07:00
asm-generic asm-generic fixes for v4.17-rc1 2018-04-12 09:15:48 -07:00
clocksource ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
crypto crypto: api - Remove unused crypto_type lookup function 2018-03-31 01:32:57 +08:00
drm
dt-bindings The large diff this time around is from the addition of a new clk driver 2018-04-13 15:51:06 -07:00
keys
kvm
linux Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-04-15 16:12:35 -07:00
math-emu
media media updates for v4.17-rc1 2018-04-10 10:10:30 -07:00
memory
misc
net slip: Check if rstate is initialized before uncompressing 2018-04-11 10:33:46 -04:00
pcmcia
ras
rdma Merge candidates for 4.17 merge window 2018-04-06 17:35:43 -07:00
scsi SCSI for-linus on 20180404 2018-04-05 15:05:53 -07:00
soc ARM: SoC driver updates for 4.17 2018-04-05 21:29:35 -07:00
sound sound updates for 4.17-rc1 2018-04-05 10:42:07 -07:00
target
trace NFS client updates for Linux 4.17 2018-04-12 12:55:50 -07:00
uapi perf/core: Store context switch out type in PERF_RECORD_SWITCH[_CPU_WIDE] 2018-04-17 09:47:39 -03:00
video
xen xen/pvh: Indicate XENFEAT_linux_rsdp_unrestricted to Xen 2018-04-10 09:22:22 -04:00