-static int
-set_tsc_freq_from_cpuinfo(void)
-{
- char line[256];
- FILE *stream;
- double dmhz;
-
- stream = fopen("/proc/cpuinfo", "r");
- if (!stream) {
- RTE_LOG(WARNING, EAL, "WARNING: Unable to open /proc/cpuinfo\n");
- return -1;
- }
-
- while (fgets(line, sizeof line, stream)) {
- if (sscanf(line, "cpu MHz\t: %lf", &dmhz) == 1) {
- eal_tsc_resolution_hz = (uint64_t)(dmhz * 1000000UL);
- break;
- }
- }
-
- fclose(stream);
-
- if (!eal_tsc_resolution_hz) {
- RTE_LOG(WARNING, EAL, "WARNING: Cannot read CPU clock from cpuinfo\n");
- return -1;
- }
- return 0;
-}
-