Date: Wed, 02 Sep 2009 11:29:14 -0400 From: "Derek (freebsd lists)" <482254ac@razorfever.net> To: Emil Mikulic <emikulic@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: siis/atacam/ata/gmirror 8.0-BETA3 disk performance Message-ID: <4A9E8F4A.7080409@razorfever.net> In-Reply-To: <20090902141138.GA15045@dmr.ath.cx> References: <4A9E5F34.2090700@razorfever.net> <20090902141138.GA15045@dmr.ath.cx>
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Emil Mikulic wrote: > Huh, I have the same disk: > > # dmesg | grep ad4 > ad4: 1430799MB <Seagate ST31500341AS CC1H> at ata2-master SATA300 > > Sequential read on a disk this size should be around 120MB/sec at the > outer tracks: > > # dd if=/dev/ad4 of=/dev/null bs=128k count=5000 > 655360000 bytes transferred in 5.171389 secs (126728039 bytes/sec) > Would you mind describing the controller/bus that you are using to get these speeds? Thanks! - Derek
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