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-rw-r--r--tools/power/cpupower/Makefile5
-rw-r--r--tools/power/cpupower/bench/benchmark.c48
-rw-r--r--tools/power/cpupower/bench/benchmark.h8
-rw-r--r--tools/power/cpupower/bench/config.h2
-rw-r--r--tools/power/cpupower/bench/main.c7
-rw-r--r--tools/power/cpupower/bench/parse.c37
-rw-r--r--tools/power/cpupower/bench/parse.h13
-rw-r--r--tools/power/cpupower/bench/system.c13
8 files changed, 75 insertions, 58 deletions
diff --git a/tools/power/cpupower/Makefile b/tools/power/cpupower/Makefile
index fea0e6a0a37..62c2716a958 100644
--- a/tools/power/cpupower/Makefile
+++ b/tools/power/cpupower/Makefile
@@ -38,7 +38,7 @@ NLS ?= true
CPUFRQ_BENCH ?= true
# Prefix to the directories we're installing to
-DESTDIR ?=
+DESTDIR ?=
# --- CONFIGURATION END ---
@@ -277,5 +277,4 @@ uninstall:
rm -f $(DESTDIR)${localedir}/$$HLANG/LC_MESSAGES/cpupowerutils.mo; \
done;
-.PHONY: all utils libcpufreq update-po create-gmo install-lib install-tools install-man install-gmo install uninstall \
- clean
+.PHONY: all utils libcpufreq update-po create-gmo install-lib install-tools install-man install-gmo install uninstall clean
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 µs
+ * @param load aimed load time in µs
*
* @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;
}
}
-
diff --git a/tools/power/cpupower/bench/benchmark.h b/tools/power/cpupower/bench/benchmark.h
index 0691f91b720..51d7f50ac2b 100644
--- a/tools/power/cpupower/bench/benchmark.h
+++ b/tools/power/cpupower/bench/benchmark.h
@@ -19,9 +19,11 @@
/* load loop, this schould take about 1 to 2ms to complete */
#define ROUNDS(x) {unsigned int rcnt; \
- for (rcnt = 0; rcnt< x*1000; rcnt++) { \
- (void)(((int)(pow(rcnt, rcnt) * sqrt(rcnt*7230970)) ^ 7230716) ^ (int)atan2(rcnt, rcnt)); \
- }} \
+ for (rcnt = 0; rcnt < x*1000; rcnt++) { \
+ (void)(((int)(pow(rcnt, rcnt) * \
+ sqrt(rcnt*7230970)) ^ 7230716) ^ \
+ (int)atan2(rcnt, rcnt)); \
+ } } \
void start_benchmark(struct config *config);
diff --git a/tools/power/cpupower/bench/config.h b/tools/power/cpupower/bench/config.h
index 9690f1be32f..ee6f258e533 100644
--- a/tools/power/cpupower/bench/config.h
+++ b/tools/power/cpupower/bench/config.h
@@ -31,6 +31,6 @@
#ifdef DEBUG
#define dprintf printf
#else
-#define dprintf( ... ) while(0) { }
+#define dprintf(...) do { } while (0)
#endif
diff --git a/tools/power/cpupower/bench/main.c b/tools/power/cpupower/bench/main.c
index 60953fc9343..24910313a52 100644
--- a/tools/power/cpupower/bench/main.c
+++ b/tools/power/cpupower/bench/main.c
@@ -28,8 +28,7 @@
#include "system.h"
#include "benchmark.h"
-static struct option long_options[] =
-{
+static struct option long_options[] = {
{"output", 1, 0, 'o'},
{"sleep", 1, 0, 's'},
{"load", 1, 0, 'l'},
@@ -50,7 +49,7 @@ static struct option long_options[] =
usage
*******************************************************************/
-void usage()
+void usage()
{
printf("usage: ./bench\n");
printf("Options:\n");
@@ -67,7 +66,7 @@ void usage()
printf(" -o, --output=<dir>\t\t\toutput path. Filename will be OUTPUTPATH/benchmark_TIMESTAMP.log\n");
printf(" -v, --verbose\t\t\t\tverbose output on/off\n");
printf(" -h, --help\t\t\t\tPrint this help screen\n");
- exit (1);
+ exit(1);
}
/*******************************************************************
diff --git a/tools/power/cpupower/bench/parse.c b/tools/power/cpupower/bench/parse.c
index 3b270ac92c4..543bba14ae2 100644
--- a/tools/power/cpupower/bench/parse.c
+++ b/tools/power/cpupower/bench/parse.c
@@ -86,20 +86,22 @@ FILE *prepare_output(const char *dirname)
len += strlen(sysdata.nodename) + strlen(sysdata.release);
filename = realloc(filename, sizeof(char) * len);
- if(filename == NULL) {
+ if (filename == NULL) {
perror("realloc");
return NULL;
}
- snprintf(filename, len - 1, "%s/benchmark_%s_%s_%li.log",
+ snprintf(filename, len - 1, "%s/benchmark_%s_%s_%li.log",
dirname, sysdata.nodename, sysdata.release, time(NULL));
} else {
- snprintf(filename, len -1, "%s/benchmark_%li.log", dirname, time(NULL));
+ snprintf(filename, len - 1, "%s/benchmark_%li.log",
+ dirname, time(NULL));
}
dprintf("logilename: %s\n", filename);
- if ((output = fopen(filename, "w+")) == NULL) {
+ output = fopen(filename, "w+");
+ if (output == NULL) {
perror("fopen");
fprintf(stderr, "error: unable to open logfile\n");
}
@@ -130,7 +132,7 @@ struct config *prepare_default_config()
config->load_step = 500000;
config->cycles = 5;
config->rounds = 50;
- config->cpu = 0;
+ config->cpu = 0;
config->prio = SCHED_HIGH;
config->verbose = 0;
strncpy(config->governor, "ondemand", 8);
@@ -166,13 +168,12 @@ int prepare_config(const char *path, struct config *config)
if (configfile == NULL) {
perror("fopen");
- fprintf(stderr, "error: unable to read configfile\n");
+ fprintf(stderr, "error: unable to read configfile\n");
free(config);
return 1;
}
- while (getline(&line, &len, configfile) != -1)
- {
+ while (getline(&line, &len, configfile) != -1) {
if (line[0] == '#' || line[0] == ' ')
continue;
@@ -183,35 +184,35 @@ int prepare_config(const char *path, struct config *config)
if (strncmp("sleep", opt, strlen(opt)) == 0)
sscanf(val, "%li", &config->sleep);
- else if (strncmp("load", opt, strlen(opt)) == 0)
+ else if (strncmp("load", opt, strlen(opt)) == 0)
sscanf(val, "%li", &config->load);
- else if (strncmp("load_step", opt, strlen(opt)) == 0)
+ else if (strncmp("load_step", opt, strlen(opt)) == 0)
sscanf(val, "%li", &config->load_step);
- else if (strncmp("sleep_step", opt, strlen(opt)) == 0)
+ else if (strncmp("sleep_step", opt, strlen(opt)) == 0)
sscanf(val, "%li", &config->sleep_step);
- else if (strncmp("cycles", opt, strlen(opt)) == 0)
+ else if (strncmp("cycles", opt, strlen(opt)) == 0)
sscanf(val, "%u", &config->cycles);
- else if (strncmp("rounds", opt, strlen(opt)) == 0)
+ else if (strncmp("rounds", opt, strlen(opt)) == 0)
sscanf(val, "%u", &config->rounds);
- else if (strncmp("verbose", opt, strlen(opt)) == 0)
+ else if (strncmp("verbose", opt, strlen(opt)) == 0)
sscanf(val, "%u", &config->verbose);
- else if (strncmp("output", opt, strlen(opt)) == 0)
+ else if (strncmp("output", opt, strlen(opt)) == 0)
config->output = prepare_output(val);
- else if (strncmp("cpu", opt, strlen(opt)) == 0)
+ else if (strncmp("cpu", opt, strlen(opt)) == 0)
sscanf(val, "%u", &config->cpu);
- else if (strncmp("governor", opt, 14) == 0)
+ else if (strncmp("governor", opt, 14) == 0)
strncpy(config->governor, val, 14);
else if (strncmp("priority", opt, strlen(opt)) == 0) {
- if (string_to_prio(val) != SCHED_ERR)
+ if (string_to_prio(val) != SCHED_ERR)
config->prio = string_to_prio(val);
}
}
diff --git a/tools/power/cpupower/bench/parse.h b/tools/power/cpupower/bench/parse.h
index 9fcdfa23dd9..a8dc632d9ee 100644
--- a/tools/power/cpupower/bench/parse.h
+++ b/tools/power/cpupower/bench/parse.h
@@ -20,19 +20,22 @@
/* struct that holds the required config parameters */
struct config
{
- long sleep; /* sleep time in µs */
- long load; /* load time in µs */
+ long sleep; /* sleep time in µs */
+ long load; /* load time in µs */
long sleep_step; /* time value which changes the
- * sleep time after every round in µs */
+ * sleep time after every round in µs */
long load_step; /* time value which changes the
- * load time after every round in µs */
+ * load time after every round in µs */
unsigned int cycles; /* calculation cycles with the same sleep/load time */
unsigned int rounds; /* calculation rounds with iterated sleep/load time */
unsigned int cpu; /* cpu for which the affinity is set */
char governor[15]; /* cpufreq governor */
enum sched_prio /* possible scheduler priorities */
{
- SCHED_ERR=-1,SCHED_HIGH, SCHED_DEFAULT, SCHED_LOW
+ SCHED_ERR = -1,
+ SCHED_HIGH,
+ SCHED_DEFAULT,
+ SCHED_LOW
} prio;
unsigned int verbose; /* verbose output */
diff --git a/tools/power/cpupower/bench/system.c b/tools/power/cpupower/bench/system.c
index 3e3a82e8bdd..f01e3f4be84 100644
--- a/tools/power/cpupower/bench/system.c
+++ b/tools/power/cpupower/bench/system.c
@@ -31,7 +31,7 @@
#include "system.h"
/**
- * returns time since epoch in µs
+ * returns time since epoch in µs
*
* @retval time
**/
@@ -87,7 +87,7 @@ int set_cpufreq_governor(char *governor, unsigned int cpu)
int set_cpu_affinity(unsigned int cpu)
{
cpu_set_t cpuset;
-
+
CPU_ZERO(&cpuset);
CPU_SET(cpu, &cpuset);
@@ -129,7 +129,7 @@ int set_process_priority(int priority)
}
/**
- * notifys the user that the benchmark may run some time
+ * notifies the user that the benchmark may run some time
*
* @param config benchmark config values
*
@@ -142,8 +142,11 @@ void prepare_user(const struct config *config)
unsigned int round;
for (round = 0; round < config->rounds; round++) {
- sleep_time += 2 * config->cycles * (config->sleep + config->sleep_step * round);
- load_time += 2 * config->cycles * (config->load + config->load_step * round) + (config->load + config->load_step * round * 4);
+ sleep_time += 2 * config->cycles *
+ (config->sleep + config->sleep_step * round);
+ load_time += 2 * config->cycles *
+ (config->load + config->load_step * round) +
+ (config->load + config->load_step * round * 4);
}
if (config->verbose || config->output != stdout)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-27 14:21:01 +0000