whererun.d

Sun Solaris 10 中的 DTrace 组件的源代码。请参看: http://www.sun.com/software/solaris/observability.jsp

#pragma D option quiet

dtrace:::BEGIN
{
	start = timestamp;
}

sched:::on-cpu
/execname == $$1/
{
	self->ts = timestamp;
}

sched:::off-cpu
/self->ts/
{
	@[cpu] = sum(timestamp - self->ts);
	self->ts = 0;
}

profile:::tick-1sec
/++x == 10/
{
	exit(0);
}
        
dtrace:::END
{
	printf("CPU distribution over %d seconds:\n\n",
	    (timestamp - start) / 1000000000);
	printf("CPU microseconds\n--- ------------\n");
	normalize(@, 1000);
	printa("%3d %@d\n", @);
}