From owner-svn-src-user@FreeBSD.ORG  Tue Feb 17 08:42:27 2015
Return-Path: <owner-svn-src-user@FreeBSD.ORG>
Delivered-To: svn-src-user@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 0D562E1F;
 Tue, 17 Feb 2015 08:42:27 +0000 (UTC)
Received: from svn.freebsd.org (svn.freebsd.org
 [IPv6:2001:1900:2254:2068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id ED69AF72;
 Tue, 17 Feb 2015 08:42:26 +0000 (UTC)
Received: from svn.freebsd.org ([127.0.1.70])
 by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t1H8gQiY080194;
 Tue, 17 Feb 2015 08:42:26 GMT (envelope-from pho@FreeBSD.org)
Received: (from pho@localhost)
 by svn.freebsd.org (8.14.9/8.14.9/Submit) id t1H8gQtF080193;
 Tue, 17 Feb 2015 08:42:26 GMT (envelope-from pho@FreeBSD.org)
Message-Id: <201502170842.t1H8gQtF080193@svn.freebsd.org>
X-Authentication-Warning: svn.freebsd.org: pho set sender to pho@FreeBSD.org
 using -f
From: Peter Holm <pho@FreeBSD.org>
Date: Tue, 17 Feb 2015 08:42:26 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-user@freebsd.org
Subject: svn commit: r278887 - user/pho/stress2/misc
X-SVN-Group: user
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-user@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: "SVN commit messages for the experimental &quot; user&quot;
 src tree" <svn-src-user.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-user>,
 <mailto:svn-src-user-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-user/>
List-Post: <mailto:svn-src-user@freebsd.org>
List-Help: <mailto:svn-src-user-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-user>,
 <mailto:svn-src-user-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 17 Feb 2015 08:42:27 -0000

Author: pho
Date: Tue Feb 17 08:42:26 2015
New Revision: 278887
URL: https://svnweb.freebsd.org/changeset/base/278887

Log:
  Limit runtime, rename snapshot.
  
  Sponsored by:	 EMC / Isilon storage division

Modified:
  user/pho/stress2/misc/altbufferflushes.sh

Modified: user/pho/stress2/misc/altbufferflushes.sh
==============================================================================
--- user/pho/stress2/misc/altbufferflushes.sh	Tue Feb 17 08:40:27 2015	(r278886)
+++ user/pho/stress2/misc/altbufferflushes.sh	Tue Feb 17 08:42:26 2015	(r278887)
@@ -79,13 +79,14 @@ persist () {
 diskfree=`df -k /var/tmp | tail -1 | awk '{print $4}'`
 [ $((diskfree / 1024 / 1024)) -lt 5 ] && echo "Not enough disk space" && exit 1
 
-rm -f /var/.snap/pho /var/tmp/big.?
-trap "rm -f /var/.snap/pho /var/tmp/big.?" 0
-persist 'mksnap_ffs /var /var/.snap/pho'
-sysctl vfs.dirtybufthresh=10 > /dev/null 2>&1
+rm -f /var/.snap/stress2 /var/tmp/big.?
+trap "rm -f /var/.snap/stress2 /var/tmp/big.?" 0
+persist 'mksnap_ffs /var /var/.snap/stress2'
+tresh=`sysctl  vfs.dirtybufthresh | awk '{print $NF}'`
+sysctl vfs.dirtybufthresh=10
 
 cd /var/tmp
-for j in `jot 10`; do
+for j in `jot 5`; do
 	old=`sysctl  vfs.altbufferflushes | awk '{print $NF}'`
 	for i in `jot 4`; do
 		echo "`date '+%T'` Create big.$i"
@@ -96,4 +97,5 @@ for j in `jot 10`; do
 	new=`sysctl  vfs.altbufferflushes | awk '{print $NF}'`
 	[ $new -ne $old ] && echo "vfs.altbufferflushes changed from $old to $new."
 done
-rm -f /var/.snap/pho
+sysctl vfs.dirtybufthresh=$tresh
+rm -f /var/.snap/stress2