*/
#define _GNU_SOURCE
#include <sched.h>
+#include <errno.h>
#include <stdio.h>
#include <sys/types.h>
#include <asm/unistd.h>
exit(1);
}
start_time = time_get_ns();
- for (i = 0; i < MAX_CNT; i++)
- write(fd, buf, sizeof(buf));
+ for (i = 0; i < MAX_CNT; i++) {
+ if (write(fd, buf, sizeof(buf)) < 0) {
+ printf("task rename failed: %s\n", strerror(errno));
+ close(fd);
+ return;
+ }
+ }
printf("task_rename:%d: %lld events per sec\n",
cpu, MAX_CNT * 1000000000ll / (time_get_ns() - start_time));
close(fd);
exit(1);
}
start_time = time_get_ns();
- for (i = 0; i < MAX_CNT; i++)
- read(fd, buf, sizeof(buf));
+ for (i = 0; i < MAX_CNT; i++) {
+ if (read(fd, buf, sizeof(buf)) < 0) {
+ printf("failed to read from /dev/urandom: %s\n", strerror(errno));
+ close(fd);
+ return;
+ }
+ }
printf("urandom_read:%d: %lld events per sec\n",
cpu, MAX_CNT * 1000000000ll / (time_get_ns() - start_time));
close(fd);