Date: Sat, 08 Jan 2011 18:14:19 -0500 From: Dan Langille <dan@langille.org> To: Mehmet Erol Sanliturk <m.e.sanliturk@gmail.com> Cc: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: ZFS - benchmark & tuning before and after doubling RAM Message-ID: <4D28EFCB.3070308@langille.org> In-Reply-To: <AANLkTiktTMV43L18Eg5Rdxc0Hw80pnePEkQGTuiv=2EZ@mail.gmail.com> References: <4D28CB06.8030301@langille.org> <AANLkTiktTMV43L18Eg5Rdxc0Hw80pnePEkQGTuiv=2EZ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 1/8/2011 4:33 PM, Mehmet Erol Sanliturk wrote: > > > On Sat, Jan 8, 2011 at 3:37 PM, Dan Langille <dan@langille.org > <mailto:dan@langille.org>> wrote: > > I've been running a ZFS array for about 10 months on a system with > 4GB of RAM. I'm about to add another 4GB of RAM. > > I think this might be an opportune time to run some simple > benchmarks and do some tuning. Getting more out of the system is > not a priority for me. It does what I need now. However, I do see > some merit in writing something up for others to see/follow/learn. > > The system is running FreeBSD 8.2-PRERELEASE #1: Tue Nov 30 22:07:59 > EST 2010 on a 64 bit box. The ZFS array consists of 7x2TB commodity > drives on two SiI3124 SATA controllers. The OS runs off a gmirror > RAID-1. > > More details here: http://www.freebsddiary.org/zfs-benchmark.php > > First, up, I've done a simple bonnie++ benchmark before I add more > RAM. I ran this on two different datasets; one with compression > enabled, one without. > > If anyone has suggestions for various tests, option settings, etc, > I'm happy to run them and include the results. We have lots of time > to play with this. > > -- > Dan Langille - http://langille.org/ > > > > > I think , you know the following pages : > > http://hub.opensolaris.org/bin/view/Community+Group+zfs/zfstestsuite > http://dlc.sun.com/osol/test/downloads/current/ > http://hub.opensolaris.org/bin/view/Community+Group+testing/testsuites > http://hub.opensolaris.org/bin/view/Community+Group+testing/zones > > Some of the links may disappear spontaneously because of restructuring > of their respective sites . Looking briefly, them seen to be more aimed at regression testing than a benchmark. They all seem to be the same thing (just different instances). Perhaps I am mistaken, but I will look closer. -- Dan Langille - http://langille.org/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4D28EFCB.3070308>