Even using 1MB block sizes I'm still only pulling 14.5M/s... given that I'm using a solid state drive which can pull 280M/s on SATA 3Gb/s on OpenBSD on other hardware I'm actually begining to think that the Soekris hardware isn't very compatible with OpenBSD/SSD combos... so I'm not trying to prove anything, as posted originally I'm looking for advice to get something I'd consider a reasonable transfer rate from the hardware.
On Thu, Jun 28, 2012 at 6:01 PM, Dominic Marks <[email protected]> wrote: > Hi > > I have FreeBSD 9 / UFS on a net6501 (1GHz), 5.4k WD SATA disc connected > using ATACAM layer. > > Using 512 byte block size (the default) I get: > >> sudo dd if=/dev/ada0 of=/dev/null count=163840 > 163840+0 records in > 163840+0 records out > 83886080 bytes transferred in 32.927147 secs (2547627 bytes/sec) > > But that's pretty small for a read these days, given that you're > benchmarking sequential read performance. > > So running that again with 1MB block size instead: > >> sudo dd if=/dev/ada0 of=/dev/null bs=1M count=80 > 80+0 records in > 80+0 records out > 83886080 bytes transferred in 0.961887 secs (87209922 bytes/sec) > > I get a similar pattern on some beefier Atom-based servers (Supermicro > 5015A-PHF). What are you trying to show with your benchmark? > > Thanks > Dominic > > _______________________________________________ > Soekris-tech mailing list > [email protected] > http://lists.soekris.com/mailman/listinfo/soekris-tech > -- Guy Hunter Reteq Ph. 1300 550 571 _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
