usr/src/cmd/dtrace/test/tst/common/aggs/tst.clearavg2.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 2007 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 /*
  31  * ASSERTION:
  32  *      Positive avg() test
  33  *
  34  * SECTION: Aggregations/Aggregations
  35  *
  36  * NOTES:
  37  *      Verifies that printing a clear()'d aggregation with an avg()
  38  *      aggregation function of 0 doesn't cause divide-by-zero problems.
  39  *
  40  */
  41
  42 #pragma D option quiet
  43 #pragma D option switchrate=50ms
  44 #pragma D option aggrate=1ms
  45
  46 tick-100ms
  47 /(x++ % 5) == 0/
  48 {
  49         @time = avg(0);
  50 }
  51
  52 tick-100ms
  53 /x > 5 && x <= 20/
  54 {
  55         printa(" %@d\n", @time);
  56         clear(@time);
  57 }
  58
  59 tick-100ms
  60 /x > 20/
  61 {
  62         exit(0);
  63 }