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# ident "%Z%%M% %I% %E% SMI" 27 28script() 29{ 30 $dtrace -qs /dev/stdin <<EOF 31 profile-1234hz 32 /arg0 != 0/ 33 { 34 @[func(arg0)] = count(); 35 } 36 37 tick-100ms 38 /i++ == 50/ 39 { 40 exit(0); 41 } 42EOF 43} 44 45spinny() 46{ 47 while true; do 48 /usr/bin/date > /dev/null 49 done 50} 51 52if [ $# != 1 ]; then 53 echo expected one argument: '<'dtrace-path'>' 54 exit 2 55fi 56 57dtrace=$1 58 59spinny & 60child=$! 61 62# 63# This is gutsy -- we're assuming that mutex_enter(9F) will show up in the 64# output. This is most likely _not_ to show up in the output if the 65# platform does not support arbitrary resolution interval timers -- but 66# the above script was stress-tested down to 100 hertz and still ran 67# successfully on all platforms, so one is hopeful that this test will pass 68# even in that case. 69# 70script | tee /dev/fd/2 | grep mutex_enter > /dev/null 71status=$? 72 73kill $child 74exit $status 75