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#define COMPILING_UTIL_C
#include "util.h"
char timebuf[512];
unsigned long long int freq;
void
benchmark_init(void)
{
#if defined(__linux__) && defined(USE_RDTSC)
cpu_set_t cpuset;
FILE *f;
char *line = 0;
size_t size = 0;
char path[PATH_MAX];
CPU_ZERO(&cpuset);
CPU_SET(USE_CPU, &cpuset);
sched_setaffinity(getpid(), sizeof(cpuset), &cpuset);
sprintf(path, "/sys/devices/system/cpu/cpu%i/cpufreq/cpuinfo_max_freq", USE_CPU);
f = fopen(path, "r");
if (getline(&line, &size, f) < 0)
abort();
fclose(f);
freq = strtoull(line, 0, 10);
free(line);
#elif defined(__linux__)
cpu_set_t cpuset;
CPU_ZERO(&cpuset);
CPU_SET(USE_CPU, &cpuset);
sched_setaffinity(getpid(), sizeof(cpuset), &cpuset);
#else
fprintf(stderr, "WARNING: Don't know how to set CPU affinity.\n");
#endif
}
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