xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/rates/tst.aggrate.d (revision 2983dda76a6d296fdb560c88114fe41caad1b84f)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  * ASSERTION:
31  *   If the aggregation rate is set properly, there should be no aggregation
32  *   drops.
33  *
34  * SECTION: Aggregations/Minimizing drops;
35  *	Options and Tunables/aggrate;
36  *	Options and Tunables/aggsize
37  */
38 
39 /*
40  * We rely on the fact that at least 30 bytes must be stored per aggregation
41  * iteration, but that no more than 300 bytes are stored per iteration.
42  * We are going to let this run for ten seconds.  If the aggregation rate
43  * is being set properly, there should be no aggregation drops.  Note that
44  * this test (regrettably) may be scheduling sensitive -- but it should only
45  * fail on the most pathological systems.
46  */
47 #pragma D option aggsize=300
48 #pragma D option aggrate=10msec
49 #pragma D option quiet
50 
51 int n;
52 
53 tick-100msec
54 /n < 100/
55 {
56 	@a[n++] = sum(n);
57 }
58 
59 tick-100msec
60 /n == 100/
61 {
62 	exit(0);
63 }
64 
65 END
66 {
67 	printa("%10d\n", @a);
68 }
69