/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * ASSERTION: * If the switch rate is set properly, there should be no drops. * * SECTION: Buffers and Buffering/switch Policy; * Options and Tunables/bufsize; * Options and Tunables/switchrate */ /* * We rely on the fact that at least 8 bytes must be stored per iteration * (EPID plus data), but that no more than 40 bytes are stored per iteration. * We are going to let this run for ten seconds. If the switch rate * is being set properly, there should be no drops. Note that this test * (regrettably) may be scheduling sensitive -- but it should only fail on * the most pathological systems. */ #pragma D option bufsize=40 #pragma D option switchrate=10msec #pragma D option quiet int n; tick-100msec /n < 100/ { printf("%10d\n", n++); } tick-100msec /n == 100/ { exit(0); }