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Diffstat (limited to 'tools/power/cpupower/bench/benchmark.c')
-rw-r--r--tools/power/cpupower/bench/benchmark.c48
1 files changed, 29 insertions, 19 deletions
diff --git a/tools/power/cpupower/bench/benchmark.c b/tools/power/cpupower/bench/benchmark.c
index f538633b8b4..81b1c48607d 100644
--- a/tools/power/cpupower/bench/benchmark.c
+++ b/tools/power/cpupower/bench/benchmark.c
@@ -37,7 +37,7 @@ if (config->output != stdout) { \
* compute how many rounds of calculation we should do
* to get the given load time
*
- * @param load aimed load time in Ás
+ * @param load aimed load time in ┬Ás
*
* @retval rounds of calculation
**/
@@ -61,9 +61,8 @@ unsigned int calculate_timespace(long load, struct config *config)
timed = (unsigned int)(then - now);
/* approximation of the wanted load time by comparing with the
- * initial calculation time */
- for (i= 0; i < 4; i++)
- {
+ * initial calculation time */
+ for (i = 0; i < 4; i++) {
rounds = (unsigned int)(load * estimated / timed);
dprintf("calibrating with %u rounds\n", rounds);
now = get_time();
@@ -102,11 +101,11 @@ void start_benchmark(struct config *config)
load_time = config->load;
/* For the progress bar */
- for (_round=1; _round <= config->rounds; _round++)
+ for (_round = 1; _round <= config->rounds; _round++)
total_time += _round * (config->sleep + config->load);
total_time *= 2; /* powersave and performance cycles */
- for (_round=0; _round < config->rounds; _round++) {
+ for (_round = 0; _round < config->rounds; _round++) {
performance_time = 0LL;
powersave_time = 0LL;
@@ -130,9 +129,10 @@ void start_benchmark(struct config *config)
fprintf(config->output, "%u %li %li ",
_round, load_time, sleep_time);
- if (config->verbose) {
- printf("avarage: %lius, rps:%li\n", load_time / calculations, 1000000 * calculations / load_time);
- }
+ if (config->verbose)
+ printf("avarage: %lius, rps:%li\n",
+ load_time / calculations,
+ 1000000 * calculations / load_time);
/* do some sleep/load cycles with the performance governor */
for (cycle = 0; cycle < config->cycles; cycle++) {
@@ -142,10 +142,14 @@ void start_benchmark(struct config *config)
then = get_time();
performance_time += then - now - sleep_time;
if (config->verbose)
- printf("performance cycle took %lius, sleep: %lius, load: %lius, rounds: %u\n",
- (long)(then - now), sleep_time, load_time, calculations);
+ printf("performance cycle took %lius, "
+ "sleep: %lius, "
+ "load: %lius, rounds: %u\n",
+ (long)(then - now), sleep_time,
+ load_time, calculations);
}
- fprintf(config->output, "%li ", performance_time / config->cycles);
+ fprintf(config->output, "%li ",
+ performance_time / config->cycles);
progress_time += sleep_time + load_time;
show_progress(total_time, progress_time);
@@ -155,7 +159,8 @@ void start_benchmark(struct config *config)
if (set_cpufreq_governor(config->governor, config->cpu) != 0)
return;
- /* again, do some sleep/load cycles with the powersave governor */
+ /* again, do some sleep/load cycles with the
+ * powersave governor */
for (cycle = 0; cycle < config->cycles; cycle++) {
now = get_time();
usleep(sleep_time);
@@ -163,22 +168,27 @@ void start_benchmark(struct config *config)
then = get_time();
powersave_time += then - now - sleep_time;
if (config->verbose)
- printf("powersave cycle took %lius, sleep: %lius, load: %lius, rounds: %u\n",
- (long)(then - now), sleep_time, load_time, calculations);
+ printf("powersave cycle took %lius, "
+ "sleep: %lius, "
+ "load: %lius, rounds: %u\n",
+ (long)(then - now), sleep_time,
+ load_time, calculations);
}
progress_time += sleep_time + load_time;
/* compare the avarage sleep/load cycles */
- fprintf(config->output, "%li ", powersave_time / config->cycles);
- fprintf(config->output, "%.3f\n", performance_time * 100.0 / powersave_time);
+ fprintf(config->output, "%li ",
+ powersave_time / config->cycles);
+ fprintf(config->output, "%.3f\n",
+ performance_time * 100.0 / powersave_time);
fflush(config->output);
if (config->verbose)
- printf("performance is at %.2f%%\n", performance_time * 100.0 / powersave_time);
+ printf("performance is at %.2f%%\n",
+ performance_time * 100.0 / powersave_time);
sleep_time += config->sleep_step;
load_time += config->load_step;
}
}
-