![]() Allow the measurement of thread versus process context switch performance. The default stays at 'process' based measurement, like lmbench's lat_ctx benchmark. Sample output: comet:~/tip/tools/perf> taskset 1 ./perf bench sched pipe # Running sched/pipe benchmark... # Executed 1000000 pipe operations between two processes Total time: 4.138 [sec] 4.138729 usecs/op 241620 ops/sec comet:~/tip/tools/perf> taskset 1 ./perf bench sched pipe --threaded # Running sched/pipe benchmark... # Executed 1000000 pipe operations between two threads Total time: 3.667 [sec] 3.667667 usecs/op 272652 ops/sec Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Link: http://lkml.kernel.org/r/20130917114256.GA31159@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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.. | ||
bench.h | ||
mem-memcpy-arch.h | ||
mem-memcpy-x86-64-asm-def.h | ||
mem-memcpy-x86-64-asm.S | ||
mem-memcpy.c | ||
mem-memset-arch.h | ||
mem-memset-x86-64-asm-def.h | ||
mem-memset-x86-64-asm.S | ||
mem-memset.c | ||
numa.c | ||
sched-messaging.c | ||
sched-pipe.c |