1#!/usr/sbin/dtrace -s
2/*
3 * inttimes.d - print interrupt on-cpu time.
4 *              Written using DTrace (Solaris 10 3/05)
5 *
6 * $Id: inttimes.d 3 2007-08-01 10:50:08Z brendan $
7 *
8 * USAGE:       inttimes.d      # wait several seconds, then hit Ctrl-C
9 *
10 * FIELDS:
11 *		DEVICE		instance name of device driver
12 *		TIME (ns)	sum of time spent servicing interrupt (ns)
13 *
14 * BASED ON: /usr/demo/dtrace/intr.d
15 *
16 * SEE ALSO:
17 *          DTrace Guide "sdt Provider" chapter (docs.sun.com)
18 *          intrstat(1M)
19 *
20 * PORTIONS: Copyright (c) 2005 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 * 20-Apr-2006	   "      "	Last update.
38 */
39
40#pragma D option quiet
41
42dtrace:::BEGIN
43{
44	printf("Tracing... Hit Ctrl-C to end.\n");
45}
46
47sdt:::interrupt-start
48{
49	self->ts = vtimestamp;
50}
51
52sdt:::interrupt-complete
53/self->ts && arg0 != 0/
54{
55	this->devi = (struct dev_info *)arg0;
56	/* this checks the pointer is valid, */
57	self->name = this->devi != 0 ?
58	    stringof(`devnamesp[this->devi->devi_major].dn_name) : "?";
59	this->inst = this->devi != 0 ? this->devi->devi_instance : 0;
60	@num[self->name, this->inst] = sum(vtimestamp - self->ts);
61	self->name = 0;
62}
63
64sdt:::interrupt-complete
65{
66	self->ts = 0;
67}
68
69dtrace:::END
70{
71	printf("%11s    %16s\n", "DEVICE", "TIME (ns)");
72	printa("%10s%-3d %@16d\n", @num);
73}
74