1#!/usr/sbin/dtrace -s 2/* 3 * iofileb.d - I/O bytes by filename and process. 4 * Written using DTrace (Solaris 10 3/05). 5 * 6 * This prints a summary of requested disk activity by pathname, 7 * providing totals of the I/O events in bytes. It is a companion to the 8 * iofile.d script - which prints in terms of I/O wait time, not bytes. 9 * I/O wait time is a better metric for understanding performance issues. 10 * Both disk and NFS I/O are measured. 11 * 12 * 20-Feb-2006, ver 1.00 13 * 14 * USAGE: iofileb.d # wait several seconds, then hit Ctrl-C 15 * 16 * FIELDS: 17 * PID process ID 18 * CMD command name 19 * KB Kilobytes of disk I/O 20 * FILE Full pathname of the file 21 * 22 * COPYRIGHT: Copyright (c) 2006 Brendan Gregg. 23 * 24 * CDDL HEADER START 25 * 26 * The contents of this file are subject to the terms of the 27 * Common Development and Distribution License, Version 1.0 only 28 * (the "License"). You may not use this file except in compliance 29 * with the License. 30 * 31 * You can obtain a copy of the license at Docs/cddl1.txt 32 * or http://www.opensolaris.org/os/licensing. 33 * See the License for the specific language governing permissions 34 * and limitations under the License. 35 * 36 * CDDL HEADER END 37 * 38 * 20-Feb-2006 Brendan Gregg Created this. 39 */ 40 41#pragma D option quiet 42 43dtrace:::BEGIN 44{ 45 printf("Tracing... Hit Ctrl-C to end.\n"); 46} 47 48io:::start 49{ 50 @files[pid, execname, args[2]->fi_pathname] = sum(args[0]->b_bcount); 51} 52 53dtrace:::END 54{ 55 normalize(@files, 1024); 56 printf("%6s %-12s %6s %s\n", "PID", "CMD", "KB", "FILE"); 57 printa("%6d %-12.12s %@6d %s\n", @files); 58} 59 60