diff options
Diffstat (limited to 'perf.c')
-rw-r--r-- | perf.c | 48 |
1 files changed, 48 insertions, 0 deletions
@@ -0,0 +1,48 @@ +/* + * Copyright (C) 2023 Mikhail Burakov. This file is part of streamer. + * + * streamer is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * streamer is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with streamer. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "perf.h" + +#include <limits.h> +#include <stdio.h> +#include <time.h> + +#include "util.h" + +unsigned long long MicrosNow(void) { + struct timespec ts = {.tv_sec = 0, .tv_nsec = 0}; + clock_gettime(CLOCK_MONOTONIC, &ts); + return (unsigned long long)ts.tv_sec * 1000000ull + + (unsigned long long)ts.tv_nsec / 1000ull; +} + +void TimingStatsReset(struct TimingStats* timing_stats) { + *timing_stats = (struct TimingStats){.min = ULLONG_MAX}; +} + +void TimingStatsRecord(struct TimingStats* timing_stats, + unsigned long long value) { + timing_stats->min = MIN(timing_stats->min, value); + timing_stats->max = MAX(timing_stats->max, value); + timing_stats->sum += value; +} + +void TimingStatsLog(const struct TimingStats* timing_stats, const char* name, + unsigned long long counter) { + LOG("%s min/avg/max: %llu/%llu/%llu", name, timing_stats->min, + timing_stats->sum / counter, timing_stats->max); +} |