Hi,
On Thu, May 18, 2000 at 01:48:14PM -0700, Brian Pomerantz wrote:
>
> I've attached a plot of the performance curve for the Ciprico 7000
> attached to the QLogic 2200. The dd I have been using aligns the
> buffer to a page, which as far as I know should work with Stephen
> Tweedie's raw I/O. Is there anything else that needs to be done to
> use the raw device once it has been attached to a block device?
Nope, there shouldn't be.
To allow testing of larger blocksizes, I'll add a tunable sysctl
limit to the 2.3 raw device code to support larger blocksizes. I'm
curious, though --- does anybody know what the typical blocksize is
when applications are using raw I/O, as opposed to benchmark tests?
--Stephen
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