[PATCH 06/35] perf stat: Use *SEC_PER_*SEC macros

From: Arnaldo Carvalho de Melo
Date: Tue Aug 23 2016 - 18:58:53 EST


From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

To match how this is done in the kernel.

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-gym6yshewpdegt153u8v2q5r@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-stat.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index e33a66bffbdb..90882b1d6a91 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -173,7 +173,7 @@ static inline void diff_timespec(struct timespec *r, struct timespec *a,
{
r->tv_sec = a->tv_sec - b->tv_sec;
if (a->tv_nsec < b->tv_nsec) {
- r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec;
+ r->tv_nsec = a->tv_nsec + NSEC_PER_SEC - b->tv_nsec;
r->tv_sec--;
} else {
r->tv_nsec = a->tv_nsec - b->tv_nsec ;
@@ -365,7 +365,7 @@ static void process_interval(void)
static void enable_counters(void)
{
if (initial_delay)
- usleep(initial_delay * 1000);
+ usleep(initial_delay * USEC_PER_MSEC);

/*
* We need to enable counters only if:
@@ -542,8 +542,8 @@ static int __run_perf_stat(int argc, const char **argv)
bool is_pipe = STAT_RECORD ? perf_stat.file.is_pipe : false;

if (interval) {
- ts.tv_sec = interval / 1000;
- ts.tv_nsec = (interval % 1000) * 1000000;
+ ts.tv_sec = interval / USEC_PER_MSEC;
+ ts.tv_nsec = (interval % USEC_PER_MSEC) * NSEC_PER_MSEC;
} else {
ts.tv_sec = 1;
ts.tv_nsec = 0;
@@ -972,7 +972,7 @@ static void print_metric_header(void *ctx, const char *color __maybe_unused,
static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
{
FILE *output = stat_config.output;
- double msecs = avg / 1e6;
+ double msecs = avg / NSEC_PER_MSEC;
const char *fmt_v, *fmt_n;
char name[25];

@@ -1461,7 +1461,7 @@ static void print_footer(void)
if (!null_run)
fprintf(output, "\n");
fprintf(output, " %17.9f seconds time elapsed",
- avg_stats(&walltime_nsecs_stats)/1e9);
+ avg_stats(&walltime_nsecs_stats) / NSEC_PER_SEC);
if (run_count > 1) {
fprintf(output, " ");
print_noise_pct(stddev_stats(&walltime_nsecs_stats),
--
2.7.4