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selftests: intel_pstate: ftime() is deprecated

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Use clock_gettime() instead of deprecated ftime().

  aperf.c: In function ‘main’:
  aperf.c:58:2: warning: ‘ftime’ is deprecated [-Wdeprecated-declarations]
     58 |  ftime(&before);
        |  ^~~~~
  In file included from aperf.c:9:
  /usr/include/sys/timeb.h:39:12: note: declared here
     39 | extern int ftime (struct timeb *__timebuf)
        |            ^~~~~

Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Tommi Rantala 2020-11-02 09:39:18 +02:00 committed by Shuah Khan
parent 85128c5bcd
commit fc4a3a1bf9
1 changed files with 16 additions and 6 deletions
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22
tools/testing/selftests/intel_pstate/aperf.c
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@ -10,8 +10,12 @@
#include <sched.h>
#include <errno.h>
#include <string.h>
#include <time.h>
#include "../kselftest.h"
#define MSEC_PER_SEC 1000L
#define NSEC_PER_MSEC 1000000L
void usage(char *name) {
printf ("Usage: %s cpunum\n", name);
}
@ -22,7 +26,7 @@ int main(int argc, char **argv) {
long long tsc, old_tsc, new_tsc;
long long aperf, old_aperf, new_aperf;
long long mperf, old_mperf, new_mperf;
struct timeb before, after;
struct timespec before, after;
long long int start, finish, total;
cpu_set_t cpuset;
@ -55,7 +59,10 @@ int main(int argc, char **argv) {
return 1;
}
ftime(&before);
if (clock_gettime(CLOCK_MONOTONIC, &before) < 0) {
perror("clock_gettime");
return 1;
}
pread(fd, &old_tsc, sizeof(old_tsc), 0x10);
pread(fd, &old_aperf, sizeof(old_mperf), 0xe7);
pread(fd, &old_mperf, sizeof(old_aperf), 0xe8);
@ -64,7 +71,10 @@ int main(int argc, char **argv) {
sqrt(i);
}
ftime(&after);
if (clock_gettime(CLOCK_MONOTONIC, &after) < 0) {
perror("clock_gettime");
return 1;
}
pread(fd, &new_tsc, sizeof(new_tsc), 0x10);
pread(fd, &new_aperf, sizeof(new_mperf), 0xe7);
pread(fd, &new_mperf, sizeof(new_aperf), 0xe8);
@ -73,11 +83,11 @@ int main(int argc, char **argv) {
aperf = new_aperf-old_aperf;
mperf = new_mperf-old_mperf;
start = before.time*1000 + before.millitm;
finish = after.time*1000 + after.millitm;
start = before.tv_sec*MSEC_PER_SEC + before.tv_nsec/NSEC_PER_MSEC;
finish = after.tv_sec*MSEC_PER_SEC + after.tv_nsec/NSEC_PER_MSEC;
total = finish - start;
printf("runTime: %4.2f\n", 1.0*total/1000);
printf("runTime: %4.2f\n", 1.0*total/MSEC_PER_SEC);
printf("freq: %7.0f\n", tsc / (1.0*aperf / (1.0 * mperf)) / total);
return 0;
}