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Diffstat (limited to 'tools/power/cpupower/utils/idle_monitor/mperf_monitor.c')
-rw-r--r--tools/power/cpupower/utils/idle_monitor/mperf_monitor.c31
1 files changed, 14 insertions, 17 deletions
diff --git a/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c b/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c
index e7d48cb563c0..ae6af354a81d 100644
--- a/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c
+++ b/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c
@@ -70,8 +70,8 @@ static int max_freq_mode;
*/
static unsigned long max_frequency;
-static unsigned long long tsc_at_measure_start;
-static unsigned long long tsc_at_measure_end;
+static unsigned long long *tsc_at_measure_start;
+static unsigned long long *tsc_at_measure_end;
static unsigned long long *mperf_previous_count;
static unsigned long long *aperf_previous_count;
static unsigned long long *mperf_current_count;
@@ -169,7 +169,7 @@ static int mperf_get_count_percent(unsigned int id, double *percent,
aperf_diff = aperf_current_count[cpu] - aperf_previous_count[cpu];
if (max_freq_mode == MAX_FREQ_TSC_REF) {
- tsc_diff = tsc_at_measure_end - tsc_at_measure_start;
+ tsc_diff = tsc_at_measure_end[cpu] - tsc_at_measure_start[cpu];
*percent = 100.0 * mperf_diff / tsc_diff;
dprint("%s: TSC Ref - mperf_diff: %llu, tsc_diff: %llu\n",
mperf_cstates[id].name, mperf_diff, tsc_diff);
@@ -206,7 +206,7 @@ static int mperf_get_count_freq(unsigned int id, unsigned long long *count,
if (max_freq_mode == MAX_FREQ_TSC_REF) {
/* Calculate max_freq from TSC count */
- tsc_diff = tsc_at_measure_end - tsc_at_measure_start;
+ tsc_diff = tsc_at_measure_end[cpu] - tsc_at_measure_start[cpu];
time_diff = timespec_diff_us(time_start, time_end);
max_frequency = tsc_diff / time_diff;
}
@@ -225,33 +225,27 @@ static int mperf_get_count_freq(unsigned int id, unsigned long long *count,
static int mperf_start(void)
{
int cpu;
- unsigned long long dbg;
clock_gettime(CLOCK_REALTIME, &time_start);
- mperf_get_tsc(&tsc_at_measure_start);
- for (cpu = 0; cpu < cpu_count; cpu++)
+ for (cpu = 0; cpu < cpu_count; cpu++) {
+ mperf_get_tsc(&tsc_at_measure_start[cpu]);
mperf_init_stats(cpu);
+ }
- mperf_get_tsc(&dbg);
- dprint("TSC diff: %llu\n", dbg - tsc_at_measure_start);
return 0;
}
static int mperf_stop(void)
{
- unsigned long long dbg;
int cpu;
- for (cpu = 0; cpu < cpu_count; cpu++)
+ for (cpu = 0; cpu < cpu_count; cpu++) {
mperf_measure_stats(cpu);
+ mperf_get_tsc(&tsc_at_measure_end[cpu]);
+ }
- mperf_get_tsc(&tsc_at_measure_end);
clock_gettime(CLOCK_REALTIME, &time_end);
-
- mperf_get_tsc(&dbg);
- dprint("TSC diff: %llu\n", dbg - tsc_at_measure_end);
-
return 0;
}
@@ -353,7 +347,8 @@ struct cpuidle_monitor *mperf_register(void)
aperf_previous_count = calloc(cpu_count, sizeof(unsigned long long));
mperf_current_count = calloc(cpu_count, sizeof(unsigned long long));
aperf_current_count = calloc(cpu_count, sizeof(unsigned long long));
-
+ tsc_at_measure_start = calloc(cpu_count, sizeof(unsigned long long));
+ tsc_at_measure_end = calloc(cpu_count, sizeof(unsigned long long));
mperf_monitor.name_len = strlen(mperf_monitor.name);
return &mperf_monitor;
}
@@ -364,6 +359,8 @@ void mperf_unregister(void)
free(aperf_previous_count);
free(mperf_current_count);
free(aperf_current_count);
+ free(tsc_at_measure_start);
+ free(tsc_at_measure_end);
free(is_valid);
}