usr/src/cmd/dtrace/test/tst/common/buffering/tst.fill1.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  * Copyright (c) 2012 by Delphix. All rights reserved.
  28  */
  29
  30 /*
  31  * ASSERTION:
  32  *   Positive test for fill buffer policy.
  33  *
  34  * SECTION: Buffers and Buffering/fill Policy;
  35  *      Buffers and Buffering/Buffer Sizes;
  36  *      Options and Tunables/bufsize;
  37  *      Options and Tunables/bufpolicy;
  38  *      Options and Tunables/statusrate
  39  */
  40 /*
  41  * This is a brute-force way of testing fill buffers.  We assume that
  42  * each printf() stores 16 bytes (4x 32-bit words for EPID, timestamp
  43  * lo, timestamp hi, and the variable i).  Because each fill buffer is
  44  * per-CPU, we must fill up our buffer in one series of enablings on a
  45  * single CPU.
  46  */
  47 #pragma D option bufpolicy=fill
  48 #pragma D option bufsize=128
  49 #pragma D option statusrate=10ms
  50 #pragma D option quiet
  51
  52 int i;
  53
  54 tick-10ms
  55 {
  56         printf("%d\n", i++);
  57 }
  58
  59 tick-10ms
  60 {
  61         printf("%d\n", i++);
  62 }
  63
  64 tick-10ms
  65 {
  66         printf("%d\n", i++);
  67 }
  68
  69 tick-10ms
  70 {
  71         printf("%d\n", i++);
  72 }
  73
  74 tick-10ms
  75 {
  76         printf("%d\n", i++);
  77 }
  78
  79 tick-10ms
  80 {
  81         printf("%d\n", i++);
  82 }
  83
  84 tick-10ms
  85 {
  86         printf("%d\n", i++);
  87 }
  88
  89 tick-10ms
  90 {
  91         printf("%d\n", i++);
  92 }
  93
  94 tick-10ms
  95 {
  96         printf("%d\n", i++);
  97 }
  98
  99 tick-10ms
 100 {
 101         printf("%d\n", i++);
 102 }
 103
 104 tick-10ms
 105 {
 106         printf("%d\n", i++);
 107 }
 108
 109 tick-10ms
 110 {
 111         printf("%d\n", i++);
 112 }
 113
 114 tick-10ms
 115 /i >= 100/
 116 {
 117         exit(1);
 118 }