Date: Wed, 25 Jul 2007 23:40:58 -0700 From: John-Mark Gurney <gurney_j@resnet.uoregon.edu> To: Howard Goldstein <hg@queue.to> Cc: freebsd-stable@freebsd.org Subject: Re: [resolved, naively] Re: geom vs ich through ar device - benchmarks? Message-ID: <20070726064058.GM99491@funkthat.com> In-Reply-To: <46A7BF8C.5020909@queue.to> References: <46A4E8FA.6010403@queue.to> <46A7B3FB.7010504@queue.to> <46A7B7AF.6080308@samsco.org> <46A7BF8C.5020909@queue.to>
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Howard Goldstein wrote this message on Wed, Jul 25, 2007 at 17:24 -0400:
> Scott Long wrote:
> >
> > ICH5 only support SATA-1.
> Dang. Does anyone yield SATA-II speeds with the a PCI controller? I'm
> not sure if 25-30MB/s is even possible with regular PCI
You probably mean 250-300MB/s which is what SATA-II is able to
support, and no, standard 32bit/33Mhz PCI does not support more than
133MB/sec... You are lucky if you get 110MB/sec due to PCI bus
overhead... So, SATA-1 can max out a standard PCI bus... Though many
on mobo sata controllers aren't necessarily connected to a PCI bus,
and so may not be limited...
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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