old_tsc 22 tools/testing/selftests/intel_pstate/aperf.c long long tsc, old_tsc, new_tsc; old_tsc 59 tools/testing/selftests/intel_pstate/aperf.c pread(fd, &old_tsc, sizeof(old_tsc), 0x10); old_tsc 72 tools/testing/selftests/intel_pstate/aperf.c tsc = new_tsc-old_tsc;