1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * ASSERTION: 29 * If the switch rate is set properly, there should be no drops. 30 * 31 * SECTION: Buffers and Buffering/switch Policy; 32 * Options and Tunables/bufsize; 33 * Options and Tunables/switchrate 34 */ 35 36 /* 37 * We rely on the fact that at least 8 bytes must be stored per iteration 38 * (EPID plus data), but that no more than 40 bytes are stored per iteration. 39 * We are going to let this run for ten seconds. If the switch rate 40 * is being set properly, there should be no drops. Note that this test 41 * (regrettably) may be scheduling sensitive -- but it should only fail on 42 * the most pathological systems. 43 */ 44 #pragma D option bufsize=40 45 #pragma D option switchrate=10msec 46 #pragma D option quiet 47 48 int n; 49 50 tick-100msec 51 /n < 100/ 52 { 53 printf("%10d\n", n++); 54 } 55 56 tick-100msec 57 /n == 100/ 58 { 59 exit(0); 60 } 61