3 * inttimes.d - print interrupt on-cpu time.
4 * Written using DTrace (Solaris 10 3/05)
6 * $Id: inttimes.d 3 2007-08-01 10:50:08Z brendan $
8 * USAGE: inttimes.d # wait several seconds, then hit Ctrl-C
11 * DEVICE instance name of device driver
12 * TIME (ns) sum of time spent servicing interrupt (ns)
14 * BASED ON: /usr/demo/dtrace/intr.d
17 * DTrace Guide "sdt Provider" chapter (docs.sun.com)
20 * PORTIONS: Copyright (c) 2005 Brendan Gregg.
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
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.
36 * 28-Jun-2005 Brendan Gregg Created this.
37 * 20-Apr-2006 " " Last update.
40 #pragma D option quiet
44 printf("Tracing... Hit Ctrl-C to end.\n");
49 self->ts = vtimestamp;
52 sdt:::interrupt-complete
53 /self->ts && arg0 != 0/
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);
64 sdt:::interrupt-complete
71 printf("%11s %16s\n", "DEVICE", "TIME (ns)");
72 printa("%10s%-3d %@16d\n", @num);