1178476Sjb#
2178476Sjb# CDDL HEADER START
3178476Sjb#
4178476Sjb# The contents of this file are subject to the terms of the
5178476Sjb# Common Development and Distribution License (the "License").
6178476Sjb# You may not use this file except in compliance with the License.
7178476Sjb#
8178476Sjb# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9178476Sjb# or http://www.opensolaris.org/os/licensing.
10178476Sjb# See the License for the specific language governing permissions
11178476Sjb# and limitations under the License.
12178476Sjb#
13178476Sjb# When distributing Covered Code, include this CDDL HEADER in each
14178476Sjb# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15178476Sjb# If applicable, add the following below this CDDL HEADER, with the
16178476Sjb# fields enclosed by brackets "[]" replaced with your own identifying
17178476Sjb# information: Portions Copyright [yyyy] [name of copyright owner]
18178476Sjb#
19178476Sjb# CDDL HEADER END
20178476Sjb#
21178476Sjb
22178476Sjb#
23178476Sjb# Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24178476Sjb# Use is subject to license terms.
25178476Sjb#
26178476Sjb#ident	"%Z%%M%	%I%	%E% SMI"
27178476Sjb
28178476Sjbscript()
29178476Sjb{
30178476Sjb	$dtrace -s /dev/stdin -x bufpolicy=$1 $1 <<EOF
31178476Sjb
32178476Sjb	#pragma D option quiet
33178476Sjb	#pragma D option statusrate=1hz
34178476Sjb
35178476Sjb	uint64_t total;
36178476Sjb	int thresh;
37178476Sjb
38178476Sjb	BEGIN
39178476Sjb	{
40178476Sjb		start = timestamp;
41178476Sjb		thresh = 10;
42178476Sjb	}
43178476Sjb
44178476Sjb	sched:::on-cpu
45178476Sjb	/pid == \$pid/
46178476Sjb	{
47178476Sjb		self->on = vtimestamp;
48178476Sjb	}
49178476Sjb
50178476Sjb	sched:::off-cpu
51178476Sjb	/self->on/
52178476Sjb	{
53178476Sjb		total += vtimestamp - self->on;
54178476Sjb	}
55178476Sjb
56178476Sjb	tick-1sec
57178476Sjb	/i++ == 10/
58178476Sjb	{
59178476Sjb		exit(0);
60178476Sjb	}
61178476Sjb
62178476Sjb	END
63178476Sjb	/((total * 100) / (timestamp - start)) > thresh/
64178476Sjb	{
65178476Sjb		printf("'%s' buffering policy took %d%% of CPU; ",
66178476Sjb		    \$\$1, ((total * 100) / (timestamp - start)));
67178476Sjb		printf("expected no more than %d%%!\n", thresh);
68178476Sjb		exit(1);
69178476Sjb	}
70178476SjbEOF
71178476Sjb}
72178476Sjb
73178476Sjbif [ $# != 1 ]; then
74178476Sjb	echo expected one argument: '<'dtrace-path'>'
75178476Sjb	exit 2
76178476Sjbfi
77178476Sjb
78178476Sjbdtrace=$1
79178476Sjb
80178476Sjbfor policy in "fill ring switch"; do
81178476Sjb	script $policy
82178476Sjb
83178476Sjb	status=$?
84178476Sjb
85178476Sjb	if [ "$status" -ne 0 ]; then
86178476Sjb		exit $status
87178476Sjb	fi
88178476Sjbdone
89178476Sjb
90178476Sjbexit 0
91