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freedreno/fdperf: support dumping counters 

This is useful for comparing two workloads.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16488>
This commit is contained in:
Chia-I Wu 2022-05-12 13:04:19 -07:00 committed by Marge Bot
parent 267786be60
commit e9e8c649cd
1 changed files with 54 additions and 2 deletions
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56
src/freedreno/perfcntrs/fdperf.c
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@ -49,8 +49,10 @@
static struct {
int refresh_ms;
bool dump;
} options = {
.refresh_ms = REFRESH_MS,
.dump = false,
};
/* NOTE first counter group should always be CP, since we unconditionally
@ -113,6 +115,16 @@ gettime_us(void)
return (ts.tv_sec * 1000000) + (ts.tv_nsec / 1000);
}
static void
sleep_us(uint32_t us)
{
const struct timespec ts = {
.tv_sec = us / 1000000,
.tv_nsec = (us % 1000000) * 1000,
};
clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL);
}
static uint32_t
delta(uint32_t a, uint32_t b)
{
@ -705,6 +717,39 @@ out:
refresh();
}
static void
dump_counters(void)
{
resample();
sleep_us(options.refresh_ms * 1000);
resample();
for (unsigned i = 0; i < dev.ngroups; i++) {
const struct counter_group *group = &dev.groups[i];
for (unsigned j = 0; j < group->group->num_counters; j++) {
const char *label = group->label[j];
float val = group->current[j];
/* we did not config the first CP counter */
if (i == 0 && j == 0)
label = group->group->countables[0].name;
int n = printf("%s: ", label) - 2;
while (n++ < ctr_width)
fputc(' ', stdout);
if (strstr(label, "CYCLE") ||
strstr(label, "BUSY") ||
strstr(label, "IDLE")) {
val = val / dev.max_freq * 100.0f;
printf("%.2f%%\n", val);
} else {
printf("%'.2f\n", val);
}
}
}
}
static void
restore_counter_groups(void)
{
@ -846,6 +891,7 @@ print_usage(const char *argv0)
"Usage: %s [OPTION]...\n"
"\n"
" -r <N> refresh every N milliseconds\n"
" -d dump counters and exit\n"
" -h show this message\n",
argv0);
exit(2);
@ -856,11 +902,14 @@ parse_options(int argc, char **argv)
{
int c;
while ((c = getopt(argc, argv, "r:")) != -1) {
while ((c = getopt(argc, argv, "r:d")) != -1) {
switch (c) {
case 'r':
options.refresh_ms = atoi(optarg);
break;
case 'd':
options.dump = true;
break;
default:
print_usage(argv[0]);
break;
@ -897,7 +946,10 @@ main(int argc, char **argv)
config_restore();
flush_ring();
main_ui();
if (options.dump)
dump_counters();
else
main_ui();
return 0;
}