Re: [PATCH] speed up SATA

From: Arjan van de Ven
Date: Mon Mar 29 2004 - 08:15:24 EST

On Mon, 2004-03-29 at 14:44, Jens Axboe wrote:
> On Mon, Mar 29 2004, Jamie Lokier wrote:
> > Jens Axboe wrote:
> > > Could be used to limit tcq depth, not just request sizes solving two
> > > problems at once. I already have a tiny bit of keeping this
> > > accounting to do proper unplugs (right now it just looks at missing
> > > requests from the pool, doesn't work on tcq).
> >
> > Does it make sense to allow different numbers of outstanding TCQ-reads
> > and TCQ-writes?
> Might not be a silly thing to experiment with, definitely something that
> should be tested (added to list...)

I wonder if the max read size could/should be correlated with the
readahead size for such devices... it sounds like a related property at

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