qlen.d

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

sched:::enqueue
{
	this->len = qlen[args[2]->cpu_id]++;
	@[args[2]->cpu_id] = lquantize(this->len, 0, 100);
}

sched:::dequeue
/qlen[args[2]->cpu_id]/
{
	qlen[args[2]->cpu_id]?;
}