sysctl__read_int
int sysctl__read_int(const char *sysctl, int *value);
if (sysctl__read_int("kernel/pid_max", &pid_max) < 0)
if (sysctl__read_int("kernel/perf_event_max_sample_rate", &max_freq) < 0)
sysctl__read_int("kernel/perf_event_mlock_kb", &pages_max_per_user);
if (sysctl__read_int("kernel/perf_event_mlock_kb", &max) < 0) {
return sysctl__read_int("kernel/perf_event_max_sample_rate", (int *)rate);
if (sysctl__read_int("kernel/perf_event_paranoid", &value))
if (sysctl__read_int("kernel/perf_event_max_stack", &value) == 0)
if (sysctl__read_int("kernel/perf_event_max_contexts_per_stack", &value) == 0)
if (sysctl__read_int("kernel/nmi_watchdog", &value) < 0)