186d7f5d3SJohn Marino# $FreeBSD$ 286d7f5d3SJohn Marino 386d7f5d3SJohn Marino# 486d7f5d3SJohn Marino# Copyright (c) 2008 Peter Holm <pho@FreeBSD.org> 586d7f5d3SJohn Marino# All rights reserved. 686d7f5d3SJohn Marino# 786d7f5d3SJohn Marino# Redistribution and use in source and binary forms, with or without 886d7f5d3SJohn Marino# modification, are permitted provided that the following conditions 986d7f5d3SJohn Marino# are met: 1086d7f5d3SJohn Marino# 1. Redistributions of source code must retain the above copyright 1186d7f5d3SJohn Marino# notice, this list of conditions and the following disclaimer. 1286d7f5d3SJohn Marino# 2. Redistributions in binary form must reproduce the above copyright 1386d7f5d3SJohn Marino# notice, this list of conditions and the following disclaimer in the 1486d7f5d3SJohn Marino# documentation and/or other materials provided with the distribution. 1586d7f5d3SJohn Marino# 1686d7f5d3SJohn Marino# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1786d7f5d3SJohn Marino# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1886d7f5d3SJohn Marino# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1986d7f5d3SJohn Marino# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2086d7f5d3SJohn Marino# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2186d7f5d3SJohn Marino# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2286d7f5d3SJohn Marino# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2386d7f5d3SJohn Marino# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2486d7f5d3SJohn Marino# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2586d7f5d3SJohn Marino# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2686d7f5d3SJohn Marino# SUCH DAMAGE. 2786d7f5d3SJohn Marino# 2886d7f5d3SJohn Marino# $FreeBSD$ 2986d7f5d3SJohn Marino# 3086d7f5d3SJohn Marino 3186d7f5d3SJohn Marino# test recursive flushes in bdwrite(). 3286d7f5d3SJohn Marino 3386d7f5d3SJohn Marino[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 3486d7f5d3SJohn Marino 3586d7f5d3SJohn Marinosnap() { 3686d7f5d3SJohn Marino for i in `jot 5`; do 3786d7f5d3SJohn Marino mksnap_ffs $1 $2 3886d7f5d3SJohn Marino [ $? -eq 0 ] && break 3986d7f5d3SJohn Marino done 4086d7f5d3SJohn Marino} 4186d7f5d3SJohn Marino 4286d7f5d3SJohn Marinoold=`sysctl vfs.recursiveflushes | awk '{print $NF}'` 4386d7f5d3SJohn Marinocd /var/tmp 4486d7f5d3SJohn Marinorm -f /var/.snap/pho.* 4586d7f5d3SJohn Marinotrap "rm -f /var/.snap/pho.*" 0 4686d7f5d3SJohn Marinosnap /var /var/.snap/pho.1 4786d7f5d3SJohn Marinosnap /var /var/.snap/pho.2 4886d7f5d3SJohn Marinosnap /var /var/.snap/pho.3 4986d7f5d3SJohn Marinosnap /var /var/.snap/pho.4 5086d7f5d3SJohn Marinosnap /var /var/.snap/pho.5 5186d7f5d3SJohn Marino 5286d7f5d3SJohn Marinofor i in `jot 32`; do 5386d7f5d3SJohn Marino # Create 32 Mb files 5486d7f5d3SJohn Marino dd if=/dev/zero of=big.$i bs=16k count=2048 2>&1 | egrep -v "records|transferred"& 5586d7f5d3SJohn Marinodone 5686d7f5d3SJohn Marinofor i in `jot 32`; do 5786d7f5d3SJohn Marino wait 5886d7f5d3SJohn Marinodone 5986d7f5d3SJohn Marinofor i in `jot 32`; do 6086d7f5d3SJohn Marino rm -f big.$i 6186d7f5d3SJohn Marinodone 6286d7f5d3SJohn Marino 6386d7f5d3SJohn Marinorm -f /var/.snap/pho.* 6486d7f5d3SJohn Marinonew=`sysctl vfs.recursiveflushes | awk '{print $NF}'` 6586d7f5d3SJohn Marino[ $old != $new ] && echo "vfs.recursiveflushes changed from $old to $new" 66