diff options
| -rw-r--r-- | tools/perf/util/pmu.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 6dc3cc050105..8e9d00fd418e 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -590,14 +590,16 @@ static struct perf_pmu *pmu_lookup(const char *name) if (pmu_format(name, &format)) return NULL; - if (pmu_aliases(name, &aliases)) + /* + * Check the type first to avoid unnecessary work. + */ + if (pmu_type(name, &type)) return NULL; - pmu_add_cpu_aliases(&aliases, name); - - if (pmu_type(name, &type)) + if (pmu_aliases(name, &aliases)) return NULL; + pmu_add_cpu_aliases(&aliases, name); pmu = zalloc(sizeof(*pmu)); if (!pmu) return NULL; @@ -1195,6 +1197,9 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag, len = j; qsort(aliases, len, sizeof(struct sevent), cmp_sevent); for (j = 0; j < len; j++) { + /* Skip duplicates */ + if (j > 0 && !strcmp(aliases[j].name, aliases[j - 1].name)) + continue; if (name_only) { printf("%s ", aliases[j].name); continue; |