diff options
Diffstat (limited to 'tools/perf/util/stat-shadow.c')
| -rw-r--r-- | tools/perf/util/stat-shadow.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 5e2d2e34e1bc..b33ffb2af2cf 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -2,6 +2,7 @@ #include "evsel.h" #include "stat.h" #include "color.h" +#include "pmu.h" enum { CTX_BIT_USER = 1 << 0, @@ -35,9 +36,15 @@ static struct stats runtime_dtlb_cache_stats[NUM_CTX][MAX_NR_CPUS]; static struct stats runtime_cycles_in_tx_stats[NUM_CTX][MAX_NR_CPUS]; static struct stats runtime_transaction_stats[NUM_CTX][MAX_NR_CPUS]; static struct stats runtime_elision_stats[NUM_CTX][MAX_NR_CPUS]; +static bool have_frontend_stalled; struct stats walltime_nsecs_stats; +void perf_stat__init_shadow_stats(void) +{ + have_frontend_stalled = pmu_have_event("cpu", "stalled-cycles-frontend"); +} + static int evsel_context(struct perf_evsel *evsel) { int ctx = 0; @@ -323,7 +330,7 @@ void perf_stat__print_shadow_stats(struct perf_evsel *evsel, print_metric(ctxp, NULL, "%7.2f ", "stalled cycles per insn", ratio); - } else { + } else if (have_frontend_stalled) { print_metric(ctxp, NULL, NULL, "stalled cycles per insn", 0); } |