Function malloc_ncpus

app/redis-6.2.6/deps/jemalloc/src/jemalloc.c:711–737

}

static unsigned
malloc_ncpus(void) {
	long result;

#ifdef _WIN32
	SYSTEM_INFO si;
	GetSystemInfo(&si);
	result = si.dwNumberOfProcessors;
#elif defined(JEMALLOC_GLIBC_MALLOC_HOOK) && defined(CPU_COUNT)
	/*
	 * glibc >= 2.6 has the CPU_COUNT macro.
	 *
	 * glibc's sysconf() uses isspace().  glibc allocates for the first time
	 * *before* setting up the isspace tables.  Therefore we need a
	 * different method to get the number of CPUs.
	 */
	{
		cpu_set_t set;

		pthread_getaffinity_np(pthread_self(), sizeof(set), &set);
		result = CPU_COUNT(&set);
	}
#else
	result = sysconf(_SC_NPROCESSORS_ONLN);
#endif
	return ((result == -1) ? 1 : (unsigned)result);
}

static void
init_opt_stats_print_opts(const char *v, size_t vlen) {