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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
void print_stats(int postcall)
{
static struct timespec tp1;
static struct timespec tp2;
static int fd = -1;
char buf[32];
int virt;
int res;
if (fd == -1)
fd = open("/proc/self/statm", O_RDONLY);
if (!postcall) {
clock_gettime(CLOCK_MONOTONIC, &tp1);
return;
}
printf(" time=");
if (tp1.tv_sec && clock_gettime(CLOCK_MONOTONIC, &tp2) == 0) {
if (tp1.tv_nsec > tp2.tv_nsec) {
tp2.tv_sec--;
tp2.tv_nsec += 1000000000;
}
tp2.tv_sec -= tp1.tv_sec;
tp2.tv_nsec -= tp1.tv_nsec;
printf("%d.%06ds ", tp2.tv_sec, tp2.tv_nsec / 1000);
} else {
tp2.tv_sec = 0;
printf("? ");
}
tp1 = tp2;
if (fd < 0)
goto out;
lseek(fd, 0, SEEK_SET);
if (read(fd, buf, sizeof(buf)) <= 0)
goto out;
if (sscanf(buf, "%d %d ", &virt, &res) != 2)
goto out;
printf("virt=%dKB res=%dKB", virt * 4, res * 4);
out:
printf("\n");
fflush(stdout);
}
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