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Commit b64aa553 authored by Petr Holasek's avatar Petr Holasek Committed by Arnaldo Carvalho de Melo
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perf bench numa: Show more stats of particular threads in verbose mode 



In verbose mode perf bench numa shows also GB/s speed, system and user cpu
time for each particular thread. Using of getrusage() can provide much more
per process or per thread stats in future.

Signed-off-by: default avatarPetr Holasek <pholasek@redhat.com>
Reviewed-by: default avatarIngo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1429198699-25039-3-git-send-email-pholasek@redhat.com


[ Rename 'usage' variable to not shadow util.h's usage() ]
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 762abdc0

tools/perf/bench/numa.c

+31 −1
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
#include <pthread.h>

#include <sys/mman.h>

#include <sys/time.h>

#include <sys/resource.h>

#include <sys/wait.h>

#include <sys/prctl.h>

#include <sys/types.h>
@@ -51,6 +52,9 @@ struct thread_data { 
	unsigned int		loops_done;

	u64			val;

	u64			runtime_ns;

	u64			system_time_ns;

	u64			user_time_ns;

	double			speed_gbs;

	pthread_mutex_t		*process_lock;

};
@@ -1034,6 +1038,7 @@ static void *worker_thread(void *__tdata) 
	u64 bytes_done;

	long work_done;

	u32 l;

	struct rusage rusage;



	bind_to_cpumask(td->bind_cpumask);

	bind_to_memnode(td->bind_node);
@@ -1186,6 +1191,13 @@ static void *worker_thread(void *__tdata) 
	timersub(&stop, &start0, &diff);

	td->runtime_ns = diff.tv_sec * 1000000000ULL;

	td->runtime_ns += diff.tv_usec * 1000ULL;

	td->speed_gbs = bytes_done / (td->runtime_ns / 1e9) / 1e9;



	getrusage(RUSAGE_THREAD, &rusage);

	td->system_time_ns = rusage.ru_stime.tv_sec * 1000000000ULL;

	td->system_time_ns += rusage.ru_stime.tv_usec * 1000ULL;

	td->user_time_ns = rusage.ru_utime.tv_sec * 1000000000ULL;

	td->user_time_ns += rusage.ru_utime.tv_usec * 1000ULL;



	free_data(thread_data, g->p.bytes_thread);
@@ -1412,7 +1424,7 @@ static int __bench_numa(const char *name) 
	double runtime_sec_min;

	int wait_stat;

	double bytes;

	int i, t;

	int i, t, p;



	if (init())

		return -1;
@@ -1548,6 +1560,24 @@ static int __bench_numa(const char *name) 
	print_res(name, bytes / runtime_sec_max / 1e9,

		"GB/sec,", "total-speed",	"GB/sec total speed");



	if (g->p.show_details >= 2) {

		char tname[32];

		struct thread_data *td;

		for (p = 0; p < g->p.nr_proc; p++) {

			for (t = 0; t < g->p.nr_threads; t++) {

				memset(tname, 0, 32);

				td = g->threads + p*g->p.nr_threads + t;

				snprintf(tname, 32, "process%d:thread%d", p, t);

				print_res(tname, td->speed_gbs,

					"GB/sec",	"thread-speed", "GB/sec/thread speed");

				print_res(tname, td->system_time_ns / 1e9,

					"secs",	"thread-system-time", "system CPU time/thread");

				print_res(tname, td->user_time_ns / 1e9,

					"secs",	"thread-user-time", "user CPU time/thread");

			}

		}

	}



	free(pids);



	deinit();