shithub: plan9front

ref: db70c1d20da3738467a9cbc0ebcfd8ebe9e4ccd8
dir: /sys/src/libc/9sys/cputime.c/

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#include <u.h>
#include <libc.h>

#define	HZ	1000

double
cputime(void)
{
	long t[4];
	long times(long*);
	int i;

	times(t);
	for(i=1; i<4; i++)
		t[0] += t[i];
	return t[0] / (double)HZ;
}