Date: Sun, 28 Jun 2009 21:33:37 +1000 From: Andrew Snow <andrew@modulus.org> To: Dan Naumov <dan.naumov@gmail.com> Cc: freebsd-fs@freebsd.org, freebsd-geom@freebsd.org Subject: Re: read/write benchmarking: UFS2 vs ZFS vs EXT3 vs ZFS RAIDZ vs Linux MDRAID Message-ID: <4A475511.5000700@modulus.org> In-Reply-To: <cf9b1ee00906280402g40dcd4b2p81dbf18612495d02@mail.gmail.com> References: <cf9b1ee00906261636m5d09966ag6d7e1b7557ada709@mail.gmail.com> <4A4725FA.80505@modulus.org> <cf9b1ee00906280330s1f500266xdcbfb1462deda7f8@mail.gmail.com> <4A4747A0.6040902@modulus.org> <cf9b1ee00906280402g40dcd4b2p81dbf18612495d02@mail.gmail.com>
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OK, I thought we were taling about a single-threaded sequential write which was what my benchmark is. It sounds like the graphs you published were of a multi-threaded writers - how many processes were running in parallel in the case of the "Contiguous Write Performance" here? http://virtual.tehinterweb.net/livejournal/2009-06-22_zfs_diskperf/zfs-diskperf-contig-write.png - Andrew
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