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fftools/ffmpeg: Add system time and real time to benchmarking. 

The -benchmark and -benchmark_all options now show user, system, and real time,
instead of just user time.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Mark Wachsler 2018-04-27 13:31:59 -04:00 committed by Michael Niedermayer
parent c116ba375e
commit 9d75354963
1 changed files with 36 additions and 13 deletions
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49
fftools/ffmpeg.c
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@ -120,8 +120,14 @@ const char *const forced_keyframes_const_names[] = {
NULL
};
typedef struct BenchmarkTimeStamps {
int64_t real_usec;
int64_t user_usec;
int64_t sys_usec;
} BenchmarkTimeStamps;
static void do_video_stats(OutputStream *ost, int frame_size);
static int64_t getutime(void);
static BenchmarkTimeStamps get_benchmark_time_stamps(void);
static int64_t getmaxrss(void);
static int ifilter_has_all_input_formats(FilterGraph *fg);
@ -133,7 +139,7 @@ static int64_t decode_error_stat[2];
static int want_sdp = 1;
static int current_time;
static BenchmarkTimeStamps current_time;
AVIOContext *progress_avio = NULL;
static uint8_t *subtitle_out;
@ -653,7 +659,7 @@ static void abort_codec_experimental(AVCodec *c, int encoder)
static void update_benchmark(const char *fmt, ...)
{
if (do_benchmark_all) {
int64_t t = getutime();
BenchmarkTimeStamps t = get_benchmark_time_stamps();
va_list va;
char buf[1024];
@ -661,7 +667,11 @@ static void update_benchmark(const char *fmt, ...)
va_start(va, fmt);
vsnprintf(buf, sizeof(buf), fmt, va);
va_end(va);
av_log(NULL, AV_LOG_INFO, "bench: %8"PRIu64" %s \n", t - current_time, buf);
av_log(NULL, AV_LOG_INFO,
"bench: %8" PRIu64 " user %8" PRIu64 " sys %8" PRIu64 " real %s \n",
t.user_usec - current_time.user_usec,
t.sys_usec - current_time.sys_usec,
t.real_usec - current_time.real_usec, buf);
}
current_time = t;
}
@ -4715,23 +4725,31 @@ static int transcode(void)
return ret;
}
static int64_t getutime(void)
static BenchmarkTimeStamps get_benchmark_time_stamps(void)
{
BenchmarkTimeStamps time_stamps;
time_stamps.real_usec = av_gettime_relative();
#if HAVE_GETRUSAGE
struct rusage rusage;
getrusage(RUSAGE_SELF, &rusage);
return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
time_stamps.user_usec =
(rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
time_stamps.sys_usec =
(rusage.ru_stime.tv_sec * 1000000LL) + rusage.ru_stime.tv_usec;
#elif HAVE_GETPROCESSTIMES
HANDLE proc;
FILETIME c, e, k, u;
proc = GetCurrentProcess();
GetProcessTimes(proc, &c, &e, &k, &u);
return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
time_stamps.user_usec =
((int64_t)u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
time_stamps.sys_usec =
((int64_t)k.dwHighDateTime << 32 | k.dwLowDateTime) / 10;
#else
return av_gettime_relative();
time_stamps.user_usec = time_stamps.sys_usec = 0;
#endif
return time_stamps;
}
static int64_t getmaxrss(void)
@ -4759,7 +4777,7 @@ static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
int main(int argc, char **argv)
{
int i, ret;
int64_t ti;
BenchmarkTimeStamps ti;
init_dynload();
@ -4811,12 +4829,17 @@ int main(int argc, char **argv)
want_sdp = 0;
}
current_time = ti = getutime();
current_time = ti = get_benchmark_time_stamps();
if (transcode() < 0)
exit_program(1);
ti = getutime() - ti;
if (do_benchmark) {
av_log(NULL, AV_LOG_INFO, "bench: utime=%0.3fs\n", ti / 1000000.0);
current_time = get_benchmark_time_stamps();
int64_t utime = current_time.user_usec - ti.user_usec;
int64_t stime = current_time.sys_usec - ti.sys_usec;
int64_t rtime = current_time.real_usec - ti.real_usec;
av_log(NULL, AV_LOG_INFO,
"bench: utime=%0.3fs stime=%0.3fs rtime=%0.3fs\n",
utime / 1000000.0, stime / 1000000.0, rtime / 1000000.0);
}
av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
decode_error_stat[0], decode_error_stat[1]);