1#!/usr/sbin/dtrace -s
2/*
3 * rwbbypid.d - read/write bytes by PID.
4 *              Written using DTrace (Solaris 10 3/05)
5 *
6 * This script tracks the bytes read and written at the syscall level
7 * by processes, printing the totals in a report. This is tracking the
8 * successful number of bytes read or written.
9 *
10 * 20-Apr-2006, ver 0.91
11 *
12 * USAGE:	rwbbypid.d		# hit Ctrl-C to end sample
13 *
14 * FIELDS:
15 *		PID		process ID
16 *		CMD		process name
17 *		DIR		direction, Read or Write
18 *		BYTES		total bytes
19 *
20 * COPYRIGHT: Copyright (c) 2005, 2006 Brendan Gregg.
21 *
22 * CDDL HEADER START
23 *
24 *  The contents of this file are subject to the terms of the
25 *  Common Development and Distribution License, Version 1.0 only
26 *  (the "License").  You may not use this file except in compliance
27 *  with the License.
28 *
29 *  You can obtain a copy of the license at Docs/cddl1.txt
30 *  or http://www.opensolaris.org/os/licensing.
31 *  See the License for the specific language governing permissions
32 *  and limitations under the License.
33 *
34 * CDDL HEADER END
35 *
36 * 28-Jun-2005	Brendan Gregg	Created this.
37 */
38
39#pragma D option quiet
40
41dtrace:::BEGIN
42{
43	printf("Tracing... Hit Ctrl-C to end.\n");
44}
45
46sysinfo:::readch
47{
48	@bytes[pid, execname, "R"] = sum(arg0);
49}
50
51sysinfo:::writech
52{
53	@bytes[pid, execname, "W"] = sum(arg0);
54}
55
56dtrace:::END
57{
58	printf("%6s %-24s %4s %16s\n", "PID", "CMD", "DIR", "BYTES");
59	printa("%6d %-24s %4s %@16d\n", @bytes);
60}
61