usr/src/cmd/dtrace/test/tst/common/aggs/tst.clearstddev.d

   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 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*
  28  * ASSERTION:
  29  *     Positive stddev() test
  30  *
  31  * SECTION: Aggregations/Aggregations
  32  *
  33  * NOTES:
  34  *     Verifies that printing a clear()'d aggregation with an stddev()
  35  *     aggregation function doesn't cause problems.
  36  *
  37  */
  38
  39 #pragma D option quiet
  40
  41 tick-10ms
  42 /i++ < 5/
  43 {
  44         @a = stddev(timestamp);
  45 }
  46
  47 tick-10ms
  48 /i == 5/
  49 {
  50         exit(2);
  51 }
  52
  53 END
  54 {
  55         clear(@a);
  56         exit(0);
  57 }