usr/src/cmd/dtrace/test/tst/common/rates/tst.statusrate.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 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  *      Positive test of statusrate option.
  32  *
  33  * SECTION: Options and Tunables/statusrate
  34  */
  35
  36 /*
  37  * Tests the statusrate option, by checking that the time delta between
  38  * exit() and END is at least as long as mandated by the statusrate.
  39  */
  40
  41 #pragma D option statusrate=10sec
  42
  43 inline uint64_t NANOSEC = 1000000000;
  44
  45 tick-1sec
  46 /n++ > 5/
  47 {
  48         exit(2);
  49         ts = timestamp;
  50 }
  51
  52 END
  53 /(this->delta = timestamp - ts) > 2 * NANOSEC/
  54 {
  55         exit(0);
  56 }
  57
  58 END
  59 /this->delta <= 2 * NANOSEC/
  60 {
  61         printf("delta between exit() and END (%u nanos) too small",
  62             this->delta);
  63         exit(1);
  64 }
  65
  66 END
  67 /this->delta > 20 * NANOSEC/
  68 {
  69         printf("delta between exit() and END (%u nanos) too large",
  70             this->delta);
  71         exit(1);
  72 }