Re: [PATCH] speed up SATA

[Nick Piggin]

Eric D. Mudama wrote:
> On Sun, Mar 28 at  9:37, Nick Piggin wrote:
>
> > I think 32MB is too much. You incur latency and lose
> > scheduling grainularity. I bet returns start diminishing
> > pretty quickly after 1MB or so.
>
>
> 32-MB requests are the best for raw throughput.
>
> ~15ms to land at your target location, then pure 50-60MB/sec for the .5
> seconds it takes to finish the operation. (media limited at that point)
>
> Sure, there's more latency, but I guess that is application dependant.

What about a queue depth of 2, and writing that 32MB in 1MB requests?
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