diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/env.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index 319fb0a0d05e..59f38c7693f8 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -106,11 +106,24 @@ static int perf_env__read_arch(struct perf_env *env) return env->arch ? 0 : -ENOMEM; } +static int perf_env__read_nr_cpus_avail(struct perf_env *env) +{ + if (env->nr_cpus_avail == 0) + env->nr_cpus_avail = cpu__max_present_cpu(); + + return env->nr_cpus_avail ? 0 : -ENOENT; +} + const char *perf_env__raw_arch(struct perf_env *env) { return env && !perf_env__read_arch(env) ? env->arch : "unknown"; } +int perf_env__nr_cpus_avail(struct perf_env *env) +{ + return env && !perf_env__read_nr_cpus_avail(env) ? env->nr_cpus_avail : 0; +} + void cpu_cache_level__free(struct cpu_cache_level *cache) { free(cache->type); |