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#!/usr/sbin/dtrace -s
/*
* inttimes.d - print interrupt on-cpu time.
* Written using DTrace (Solaris 10 3/05)
*
* $Id: inttimes.d 3 2007-08-01 10:50:08Z brendan $
*
* USAGE: inttimes.d # wait several seconds, then hit Ctrl-C
*
* FIELDS:
* DEVICE instance name of device driver
* TIME (ns) sum of time spent servicing interrupt (ns)
*
* BASED ON: /usr/demo/dtrace/intr.d
*
* SEE ALSO:
* DTrace Guide "sdt Provider" chapter (docs.sun.com)
* intrstat(1M)
*
* PORTIONS: Copyright (c) 2005 Brendan Gregg.
*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at Docs/cddl1.txt
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* CDDL HEADER END
*
* 28-Jun-2005 Brendan Gregg Created this.
* 20-Apr-2006 " " Last update.
*/
#pragma D option quiet
dtrace:::BEGIN
{
printf("Tracing... Hit Ctrl-C to end.\n");
}
sdt:::interrupt-start
{
self->ts = vtimestamp;
}
sdt:::interrupt-complete
/self->ts && arg0 != 0/
{
this->devi = (struct dev_info *)arg0;
/* this checks the pointer is valid, */
self->name = this->devi != 0 ?
stringof(`devnamesp[this->devi->devi_major].dn_name) : "?";
this->inst = this->devi != 0 ? this->devi->devi_instance : 0;
@num[self->name, this->inst] = sum(vtimestamp - self->ts);
self->name = 0;
}
sdt:::interrupt-complete
{
self->ts = 0;
}
dtrace:::END
{
printf("%11s %16s\n", "DEVICE", "TIME (ns)");
printa("%10s%-3d %@16d\n", @num);
}
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