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 * Verify doc example 7-1 30 * 31 * SECTION: 32 * DocExamples/rwinfo 33 */ 34 35 36 #pragma D option quiet 37 38 struct callinfo { 39 uint64_t ts; 40 uint64_t elapsed; 41 uint64_t calls; 42 size_t maxbytes; 43 }; 44 45 struct callinfo i[string]; 46 47 syscall::read:entry, 48 syscall::write:entry 49 /pid == 100551/ 50 { 51 i[probefunc].ts = timestamp; 52 i[probefunc].calls++; 53 i[probefunc].maxbytes = arg2 > i[probefunc].maxbytes ? 54 arg2 : i[probefunc].maxbytes; 55 } 56 57 syscall::read:return, 58 syscall::write:return 59 /i[probefunc].ts != 0 && pid == 100551/ 60 { 61 i[probefunc].elapsed += timestamp - i[probefunc].ts; 62 } 63 64 END 65 { 66 printf(" calls max bytes elapsed nsecs\n"); 67 printf("----- ----- --------- -------------\n"); 68 printf(" read %5d %9d %d\n", i["read"].calls, 69 i["read"].maxbytes, i["read"].elapsed); 70 printf(" write %5d %9d %d\n", i["write"].calls, 71 i["write"].maxbytes, i["write"].elapsed); 72 } 73