Date: Wed, 20 Apr 2005 23:57:08 -0400 From: Mike Tancsa <mike@sentex.net> To: Claus Guttesen <kometen@gmail.com>, Eric Anderson <anderson@centtech.com> Cc: freebsd-performance@freebsd.org Subject: Re: some simple nfs-benchmarks on 5.4 RC2 Message-ID: <6.2.1.2.0.20050420235003.04b7bda0@64.7.153.2> In-Reply-To: <b41c7552050420014730ae39e1@mail.gmail.com> References: <b41c75520504190418308f94cc@mail.gmail.com> <b41c75520504190443187617de@mail.gmail.com> <4264EF40.3060900@centtech.com> <b41c75520504190455542071f7@mail.gmail.com> <4264F8A8.3080405@centtech.com> <b41c755205041906145fc4719c@mail.gmail.com> <426507DC.50409@centtech.com> <b41c7552050419065519057cb2@mail.gmail.com> <42650EB2.4040409@centtech.com> <b41c75520504200117608f8e31@mail.gmail.com> <b41c7552050420014730ae39e1@mail.gmail.com>
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At 04:47 AM 20/04/2005, Claus Guttesen wrote: > > elin% dd if=/dev/zero of=/nfssrv/dd.tst bs=1024 count=1048576 > > 1048576+0 records in > > 1048576+0 records out > > 1073741824 bytes transferred in 21.373114 secs (50237968 bytes/sec) > > > >Follow-up, did the same dd on a Dell 2850 with a LSI Logic (amr), 6 >scsi-disks in a raid 5: > >frodo~%>dd if=/dev/zero of=dd.tst bs=1024 count=1048576 >1048576+0 records in >1048576+0 records out >1073741824 bytes transferred in 8.972321 secs (119672693 bytes/sec) > >Must faster. FreeBSD 5.4 RC2. FYI, here is on an Areca SATA in Raid5, 4 disks 3Ghz P4 [nfs]# dd if=/dev/zero of=dd.tst bs=1024 count=1048576 1048576+0 records in 1048576+0 records out 1073741824 bytes transferred in 16.416051 secs (65408047 bytes/sec) [nfs]# [nfs]# dd if=/dev/zero of=dd.tst bs=2048 count=1048576 1048576+0 records in 1048576+0 records out 2147483648 bytes transferred in 30.371264 secs (70707747 bytes/sec) [nfs]# Same box, but to an ad0 partition (similar Segate drive) [nfs]# dd if=/dev/zero of=dd.tst bs=512 count=1048576 1048576+0 records in 1048576+0 records out 536870912 bytes transferred in 11.096809 secs (48380658 bytes/sec) [nfs]# RELENG_5 from today.
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