1*2be1a816SJohn Birrell /* 2*2be1a816SJohn Birrell * CDDL HEADER START 3*2be1a816SJohn Birrell * 4*2be1a816SJohn Birrell * The contents of this file are subject to the terms of the 5*2be1a816SJohn Birrell * Common Development and Distribution License (the "License"). 6*2be1a816SJohn Birrell * You may not use this file except in compliance with the License. 7*2be1a816SJohn Birrell * 8*2be1a816SJohn Birrell * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*2be1a816SJohn Birrell * or http://www.opensolaris.org/os/licensing. 10*2be1a816SJohn Birrell * See the License for the specific language governing permissions 11*2be1a816SJohn Birrell * and limitations under the License. 12*2be1a816SJohn Birrell * 13*2be1a816SJohn Birrell * When distributing Covered Code, include this CDDL HEADER in each 14*2be1a816SJohn Birrell * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*2be1a816SJohn Birrell * If applicable, add the following below this CDDL HEADER, with the 16*2be1a816SJohn Birrell * fields enclosed by brackets "[]" replaced with your own identifying 17*2be1a816SJohn Birrell * information: Portions Copyright [yyyy] [name of copyright owner] 18*2be1a816SJohn Birrell * 19*2be1a816SJohn Birrell * CDDL HEADER END 20*2be1a816SJohn Birrell */ 21*2be1a816SJohn Birrell 22*2be1a816SJohn Birrell /* 23*2be1a816SJohn Birrell * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24*2be1a816SJohn Birrell * Use is subject to license terms. 25*2be1a816SJohn Birrell */ 26*2be1a816SJohn Birrell 27*2be1a816SJohn Birrell #pragma ident "%Z%%M% %I% %E% SMI" 28*2be1a816SJohn Birrell 29*2be1a816SJohn Birrell /* 30*2be1a816SJohn Birrell * ASSERTION: 31*2be1a816SJohn Birrell * Positive test for ring buffer policy. 32*2be1a816SJohn Birrell * 33*2be1a816SJohn Birrell * SECTION: Buffers and Buffering/ring Policy; 34*2be1a816SJohn Birrell * Buffers and Buffering/Buffer Sizes; 35*2be1a816SJohn Birrell * Options and Tunables/bufsize; 36*2be1a816SJohn Birrell * Options and Tunables/bufpolicy; 37*2be1a816SJohn Birrell * Options and Tunables/switchrate 38*2be1a816SJohn Birrell */ 39*2be1a816SJohn Birrell 40*2be1a816SJohn Birrell /* 41*2be1a816SJohn Birrell * We assume that a trace() of an integer stores at least 8 bytes. If ring 42*2be1a816SJohn Birrell * buffering is not working properly, this trace() will induce a drop, and the 43*2be1a816SJohn Birrell * counter won't be incremented. We set the switchrate to one second just to 44*2be1a816SJohn Birrell * sure that a high switchrate doesn't mask broken ring buffers. 45*2be1a816SJohn Birrell */ 46*2be1a816SJohn Birrell #pragma D option bufpolicy=ring 47*2be1a816SJohn Birrell #pragma D option bufsize=50 48*2be1a816SJohn Birrell #pragma D option switchrate=1sec 49*2be1a816SJohn Birrell 50*2be1a816SJohn Birrell int n; 51*2be1a816SJohn Birrell int i; 52*2be1a816SJohn Birrell 53*2be1a816SJohn Birrell tick-10msec 54*2be1a816SJohn Birrell /n < 300/ 55*2be1a816SJohn Birrell { 56*2be1a816SJohn Birrell trace(i); 57*2be1a816SJohn Birrell i++; 58*2be1a816SJohn Birrell } 59*2be1a816SJohn Birrell 60*2be1a816SJohn Birrell tick-10msec 61*2be1a816SJohn Birrell /n < 300/ 62*2be1a816SJohn Birrell { 63*2be1a816SJohn Birrell n++; 64*2be1a816SJohn Birrell } 65*2be1a816SJohn Birrell 66*2be1a816SJohn Birrell tick-10msec 67*2be1a816SJohn Birrell /n == 300/ 68*2be1a816SJohn Birrell { 69*2be1a816SJohn Birrell exit(2); 70*2be1a816SJohn Birrell } 71*2be1a816SJohn Birrell 72*2be1a816SJohn Birrell END 73*2be1a816SJohn Birrell { 74*2be1a816SJohn Birrell exit(i == 300 ? 0 : 1); 75*2be1a816SJohn Birrell } 76