usr/src/cmd/dtrace/test/tst/common/buffering/tst.cputime.ksh

   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 #ident  "%Z%%M% %I%     %E% SMI"
  27
  28 script()
  29 {
  30         $dtrace -s /dev/stdin -x bufpolicy=$1 $1 <<EOF
  31
  32         #pragma D option quiet
  33         #pragma D option statusrate=1hz
  34
  35         uint64_t total;
  36         int thresh;
  37
  38         BEGIN
  39         {
  40                 start = timestamp;
  41                 thresh = 10;
  42         }
  43
  44         sched:::on-cpu
  45         /pid == \$pid/
  46         {
  47                 self->on = vtimestamp;
  48         }
  49
  50         sched:::off-cpu
  51         /self->on/
  52         {
  53                 total += vtimestamp - self->on;
  54         }
  55
  56         tick-1sec
  57         /i++ == 10/
  58         {
  59                 exit(0);
  60         }
  61
  62         END
  63         /((total * 100) / (timestamp - start)) > thresh/
  64         {
  65                 printf("'%s' buffering policy took %d%% of CPU; ",
  66                     \$\$1, ((total * 100) / (timestamp - start)));
  67                 printf("expected no more than %d%%!\n", thresh);
  68                 exit(1);
  69         }
  70 EOF
  71 }
  72
  73 if [ $# != 1 ]; then
  74         echo expected one argument: '<'dtrace-path'>'
  75         exit 2
  76 fi
  77
  78 dtrace=$1
  79
  80 for policy in "fill ring switch"; do
  81         script $policy
  82
  83         status=$?
  84
  85         if [ "$status" -ne 0 ]; then
  86                 exit $status
  87         fi
  88 done
  89
  90 exit 0