usr/src/cmd/dtrace/test/tst/common/aggs/tst.stddev.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: This is a simple verifiable positive test of the stddev() function.
  34  *     printa() for one aggregation, default printing behavior for the other
  35  *     so that we exercise both code paths.
  36  */
  37
  38 #pragma D option quiet
  39
  40 BEGIN
  41 {
  42         @a = stddev(5000000000);
  43         @a = stddev(5000000100);
  44         @a = stddev(5000000200);
  45         @a = stddev(5000000300);
  46         @a = stddev(5000000400);
  47         @a = stddev(5000000500);
  48         @a = stddev(5000000600);
  49         @a = stddev(5000000700);
  50         @a = stddev(5000000800);
  51         @a = stddev(5000000900);
  52         @b = stddev(-5000000000);
  53         @b = stddev(-5000000100);
  54         @b = stddev(-5000000200);
  55         @b = stddev(-5000000300);
  56         @b = stddev(-5000000400);
  57         @b = stddev(-5000000500);
  58         @b = stddev(-5000000600);
  59         @b = stddev(-5000000700);
  60         @b = stddev(-5000000800);
  61         @b = stddev(-5000000900);
  62         printa("%@d\n", @a);
  63         exit(0);
  64 }