[tip:perf/core] perf bench numa: Use NSEC_PER_U?SEC

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  a8ad8329b91551bbfc3a317f3655dffcd8c18591
Gitweb:     http://git.kernel.org/tip/a8ad8329b91551bbfc3a317f3655dffcd8c18591
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Mon, 8 Aug 2016 11:55:38 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 23 Aug 2016 15:37:33 -0300

perf bench numa: Use NSEC_PER_U?SEC

Following kernel practices, using linux/time64.h

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-7vnv15263y50qku76p4w5xk6@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/bench/numa.c | 53 +++++++++++++++++++++++++------------------------
 1 file changed, 27 insertions(+), 26 deletions(-)

diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index f7f5300..8efe904 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -30,6 +30,7 @@
 #include <sys/wait.h>
 #include <sys/prctl.h>
 #include <sys/types.h>
+#include <linux/time64.h>
 
 #include <numa.h>
 #include <numaif.h>
@@ -1004,7 +1005,7 @@ static void calc_convergence(double runtime_ns_max, double *convergence)
 	if (strong && process_groups == g->p.nr_proc) {
 		if (!*convergence) {
 			*convergence = runtime_ns_max;
-			tprintf(" (%6.1fs converged)\n", *convergence/1e9);
+			tprintf(" (%6.1fs converged)\n", *convergence / NSEC_PER_SEC);
 			if (g->p.measure_convergence) {
 				g->all_converged = true;
 				g->stop_work = true;
@@ -1012,7 +1013,7 @@ static void calc_convergence(double runtime_ns_max, double *convergence)
 		}
 	} else {
 		if (*convergence) {
-			tprintf(" (%6.1fs de-converged)", runtime_ns_max/1e9);
+			tprintf(" (%6.1fs de-converged)", runtime_ns_max / NSEC_PER_SEC);
 			*convergence = 0;
 		}
 		tprintf("\n");
@@ -1022,7 +1023,7 @@ static void calc_convergence(double runtime_ns_max, double *convergence)
 static void show_summary(double runtime_ns_max, int l, double *convergence)
 {
 	tprintf("\r #  %5.1f%%  [%.1f mins]",
-		(double)(l+1)/g->p.nr_loops*100.0, runtime_ns_max/1e9 / 60.0);
+		(double)(l+1)/g->p.nr_loops*100.0, runtime_ns_max / NSEC_PER_SEC / 60.0);
 
 	calc_convergence(runtime_ns_max, convergence);
 
@@ -1179,8 +1180,8 @@ static void *worker_thread(void *__tdata)
 
 		if (details >= 3) {
 			timersub(&stop, &start, &diff);
-			runtime_ns_max = diff.tv_sec * 1000000000;
-			runtime_ns_max += diff.tv_usec * 1000;
+			runtime_ns_max = diff.tv_sec * NSEC_PER_SEC;
+			runtime_ns_max += diff.tv_usec * NSEC_PER_USEC;
 
 			if (details >= 0) {
 				printf(" #%2d / %2d: %14.2lf nsecs/op [val: %016"PRIx64"]\n",
@@ -1192,23 +1193,23 @@ static void *worker_thread(void *__tdata)
 			continue;
 
 		timersub(&stop, &start0, &diff);
-		runtime_ns_max = diff.tv_sec * 1000000000ULL;
-		runtime_ns_max += diff.tv_usec * 1000ULL;
+		runtime_ns_max = diff.tv_sec * NSEC_PER_SEC;
+		runtime_ns_max += diff.tv_usec * NSEC_PER_USEC;
 
 		show_summary(runtime_ns_max, l, &convergence);
 	}
 
 	gettimeofday(&stop, NULL);
 	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;
+	td->runtime_ns = diff.tv_sec * NSEC_PER_SEC;
+	td->runtime_ns += diff.tv_usec * NSEC_PER_USEC;
+	td->speed_gbs = bytes_done / (td->runtime_ns / NSEC_PER_SEC) / 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;
+	td->system_time_ns = rusage.ru_stime.tv_sec * NSEC_PER_SEC;
+	td->system_time_ns += rusage.ru_stime.tv_usec * NSEC_PER_USEC;
+	td->user_time_ns = rusage.ru_utime.tv_sec * NSEC_PER_SEC;
+	td->user_time_ns += rusage.ru_utime.tv_usec * NSEC_PER_USEC;
 
 	free_data(thread_data, g->p.bytes_thread);
 
@@ -1469,7 +1470,7 @@ static int __bench_numa(const char *name)
 	}
 	/* Wait for all the threads to start up: */
 	while (g->nr_tasks_started != g->p.nr_tasks)
-		usleep(1000);
+		usleep(USEC_PER_MSEC);
 
 	BUG_ON(g->nr_tasks_started != g->p.nr_tasks);
 
@@ -1488,9 +1489,9 @@ static int __bench_numa(const char *name)
 
 		timersub(&stop, &start, &diff);
 
-		startup_sec = diff.tv_sec * 1000000000.0;
-		startup_sec += diff.tv_usec * 1000.0;
-		startup_sec /= 1e9;
+		startup_sec = diff.tv_sec * NSEC_PER_SEC;
+		startup_sec += diff.tv_usec * NSEC_PER_USEC;
+		startup_sec /= NSEC_PER_SEC;
 
 		tprintf(" threads initialized in %.6f seconds.\n", startup_sec);
 		tprintf(" #\n");
@@ -1529,14 +1530,14 @@ static int __bench_numa(const char *name)
 	tprintf("\n ###\n");
 	tprintf("\n");
 
-	runtime_sec_max = diff.tv_sec * 1000000000.0;
-	runtime_sec_max += diff.tv_usec * 1000.0;
-	runtime_sec_max /= 1e9;
+	runtime_sec_max = diff.tv_sec * NSEC_PER_SEC;
+	runtime_sec_max += diff.tv_usec * NSEC_PER_USEC;
+	runtime_sec_max /= NSEC_PER_SEC;
 
-	runtime_sec_min = runtime_ns_min/1e9;
+	runtime_sec_min = runtime_ns_min / NSEC_PER_SEC;
 
 	bytes = g->bytes_done;
-	runtime_avg = (double)runtime_ns_sum / g->p.nr_tasks / 1e9;
+	runtime_avg = (double)runtime_ns_sum / g->p.nr_tasks / NSEC_PER_SEC;
 
 	if (g->p.measure_convergence) {
 		print_res(name, runtime_sec_max,
@@ -1562,7 +1563,7 @@ static int __bench_numa(const char *name)
 	print_res(name, bytes / 1e9,
 		"GB,", "data-total",		"GB data processed, total");
 
-	print_res(name, runtime_sec_max * 1e9 / (bytes / g->p.nr_tasks),
+	print_res(name, runtime_sec_max * NSEC_PER_SEC / (bytes / g->p.nr_tasks),
 		"nsecs,", "runtime/byte/thread","nsecs/byte/thread runtime");
 
 	print_res(name, bytes / g->p.nr_tasks / 1e9 / runtime_sec_max,
@@ -1581,9 +1582,9 @@ static int __bench_numa(const char *name)
 				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,
+				print_res(tname, td->system_time_ns / NSEC_PER_SEC,
 					"secs",	"thread-system-time", "system CPU time/thread");
-				print_res(tname, td->user_time_ns / 1e9,
+				print_res(tname, td->user_time_ns / NSEC_PER_SEC,
 					"secs",	"thread-user-time", "user CPU time/thread");
 			}
 		}