Date: Sat, 27 Jun 2009 02:36:54 +0300 From: Dan Naumov <dan.naumov@gmail.com> To: freebsd-fs@freebsd.org, freebsd-geom@freebsd.org Subject: read/write benchmarking: UFS2 vs ZFS vs EXT3 vs ZFS RAIDZ vs Linux MDRAID Message-ID: <cf9b1ee00906261636m5d09966ag6d7e1b7557ada709@mail.gmail.com>
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To continue the subject of filesystem benchmarking (search the list for READ results posted a few days ago), here are some write and read/write results: Methodology: /data/5M and /data/1M have 5GB of data each in randomly-ordered chunks 5MB and 1MB in size, respectively. /data/zero.bin is a contiguous 8GB file. A process writes a burst of 5MB to a random location in /data/zero.bin once per second; other processes read chunks from /data/1M or /data/5M as appropriate (and as fast as possible) until the entire 5G dataset is read. Contiguous Write Performance: http://virtual.tehinterweb.net/livejournal/2009-06-22_zfs_diskperf/zfs-diskperf-contig-write.png Random Access Read/Write (5mb read chunks): http://virtual.tehinterweb.net/livejournal/2009-06-22_zfs_diskperf/zfs-diskperf-5MB-readwrite.png Random Access Read/Write (1mb read chunks): http://virtual.tehinterweb.net/livejournal/2009-06-22_zfs_diskperf/zfs-diskperf-1MB-readwrite.png These results are from the following forum thread: http://episteme.arstechnica.com/eve/forums/a/tpc/f/96509133/m/857002910041/p/4 Sincerely, - Dan Naumov
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