xref: /titanic_41/usr/src/cmd/dtrace/demo/sched/whatfor.d (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 sched:::off-cpu
28 /curlwpsinfo->pr_state == SSLEEP/
29 {
30 	/*
31 	 * We're sleeping.  Track our sobj type.
32 	 */
33 	self->sobj = curlwpsinfo->pr_stype;
34 	self->bedtime = timestamp;
35 }
36 
37 sched:::off-cpu
38 /curlwpsinfo->pr_state == SRUN/
39 {
40 	self->bedtime = timestamp;
41 }
42 
43 sched:::on-cpu
44 /self->bedtime && !self->sobj/
45 {
46 	@["preempted"] = quantize(timestamp - self->bedtime);
47 	self->bedtime = 0;
48 }
49 
50 sched:::on-cpu
51 /self->sobj/
52 {
53 	@[self->sobj == SOBJ_MUTEX ? "kernel-level lock" :
54 	    self->sobj == SOBJ_RWLOCK ? "rwlock" :
55 	    self->sobj == SOBJ_CV ? "condition variable" :
56 	    self->sobj == SOBJ_SEMA ? "semaphore" :
57 	    self->sobj == SOBJ_USER ? "user-level lock" :
58 	    self->sobj == SOBJ_USER_PI ? "user-level prio-inheriting lock" :
59 	    self->sobj == SOBJ_SHUTTLE ? "shuttle" : "unknown"] =
60 	    quantize(timestamp - self->bedtime);
61 
62 	self->sobj = 0;
63 	self->bedtime = 0;
64 }
65