Date: Wed, 24 Jun 2009 23:27:31 +0300 From: Dan Naumov <dan.naumov@gmail.com> To: freebsd-geom@freebsd.org, freebsd-fs@freebsd.org Subject: read benchmarks: ufs/zfs/ext3 raidz/raid5 Message-ID: <cf9b1ee00906241327i28e2498er70c82fef04f1ccbe@mail.gmail.com>
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Another FreeBSD person on a forum I frequent did some read benchmarks on his system: Athlon64 3500+ with 2GB DDR2 SDRAM, a WD 250GB system drive, and 5 Seagate Barracuda 750GB SATA-II data drives. ZFS and UFS testing was done using FreeBSD 7.2-RELEASE amd64, and ext3 testing was done using Ubuntu Server 8.04-LTS amd64. The used disks do not support NCQ, so there is no "NCQ advantage" on the Linux side. Random Access reads, 5MB chunks: http://virtual.tehinterweb.net/livejournal/2009-06-22_zfs_diskperf/zfs-diskperf-untuned-5mb.png Random Access reads, 1MB chunks: http://virtual.tehinterweb.net/livejournal/2009-06-22_zfs_diskperf/zfs-diskperf-untuned-1mb.png Random Access reads, 5MB chunks (big list): http://virtual.tehinterweb.net/livejournal/raid_performance/raid-diskperf-5mb-all.png Here is the original forum discussion thread: http://episteme.arstechnica.com/eve/forums/a/tpc/f/96509133/m/857002910041 Sincerely, - Dan Naumov
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