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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 struct callinfo { 28 uint64_t ts; /* timestamp of last syscall entry */ 29 uint64_t elapsed; /* total elapsed time in nanoseconds */ 30 uint64_t calls; /* number of calls made */ 31 size_t maxbytes; /* maximum byte count argument */ 32 }; 33 34 struct callinfo i[string]; /* declare i as an associative array */ 35 36 syscall::read:entry, syscall::write:entry 37 /pid == $1/ 38 { 39 i[probefunc].ts = timestamp; 40 i[probefunc].calls++; 41 i[probefunc].maxbytes = arg2 > i[probefunc].maxbytes ? 42 arg2 : i[probefunc].maxbytes; 43 } 44 45 syscall::read:return, syscall::write:return 46 /i[probefunc].ts != 0 && pid == $1/ 47 { 48 i[probefunc].elapsed += timestamp - i[probefunc].ts; 49 } 50 51 END 52 { 53 printf(" calls max bytes elapsed nsecs\n"); 54 printf("------ ----- --------- -------------\n"); 55 printf(" read %5d %9d %d\n", 56 i["read"].calls, i["read"].maxbytes, i["read"].elapsed); 57 printf(" write %5d %9d %d\n", 58 i["write"].calls, i["write"].maxbytes, i["write"].elapsed); 59 } 60