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added TakenAlone option

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This commit is contained in:
Andreas Abel
2021-11-15 18:50:38 +01:00
parent c44530c8d2
commit e6f6dc4a45
3 changed files with 15 additions and 3 deletions
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13
common/nanoBench.c
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@@ -181,6 +181,8 @@ void parse_counter_configs() {
pfc_configs[n_pfc_configs].edge = true;
} else if (!strcmp(ce, "INV")) {
pfc_configs[n_pfc_configs].inv = true;
} else if (!strcmp(ce, "TakenAlone")) {
pfc_configs[n_pfc_configs].taken_alone = true;
} else if (!strncmp(ce, "CTR=", 4)) {
unsigned long counter;
nb_strtoul(ce+4, 0, &counter);
@@ -319,15 +321,19 @@ size_t configure_perf_ctrs_programmable(size_t next_pfc_config, int n_counters,
global_ctrl |= ((uint64_t)7 << 32) | 15;
write_msr(MSR_IA32_PERF_GLOBAL_CTRL, global_ctrl);
bool evt_added = false;
for (int i=0; i<n_counters; i++) {
// clear
write_msr(MSR_IA32_PMC0+i, 0);
if (next_pfc_config >= n_pfc_configs) {
return next_pfc_config;
break;
}
struct pfc_config config = pfc_configs[next_pfc_config];
if (config.taken_alone && evt_added) {
break;
}
if ((config.ctr != -1) && (config.ctr != i)) {
continue;
}
@@ -358,6 +364,11 @@ size_t configure_perf_ctrs_programmable(size_t next_pfc_config, int n_counters,
if (config.msr_rsp1) {
write_msr(MSR_OFFCORE_RSP1, config.msr_rsp1);
}
evt_added = true;
if (config.taken_alone) {
break;
}
}
} else {
for (int i=0; i<n_counters; i++) {

1
common/nanoBench.h
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@@ -150,6 +150,7 @@ struct pfc_config {
bool any;
bool edge;
bool inv;
bool taken_alone;
unsigned long msr_3f6h;
unsigned long msr_pf;
unsigned long msr_rsp0;