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Date: Sun, 5 Aug 2001 15:40:39 -0300 (BRT)
From: Marcelo Tosatti <marcelo@conectiva.com.br>
To: Michael Rothwell <rothwell@holly-springs.nc.us>
Cc: Linus Torvalds <torvalds@transmeta.com>, Mike Black <mblack@csihq.com>,
        Ben LaHaise <bcrl@redhat.com>,
        Daniel Phillips <phillips@bonn-fries.net>,
        Rik van Riel <riel@conectiva.com.br>, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org, Andrew Morton <andrewm@uow.edu.au>
Subject: Re: [RFC][DATA] re "ongoing vm suckage"
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On 5 Aug 2001, Michael Rothwell wrote:

> On 04 Aug 2001 10:08:56 -0700, Linus Torvalds wrote:
> > 
> > On Sat, 4 Aug 2001, Mike Black wrote:
> > >
> > > I'm testing 2.4.8-pre4 -- MUCH better interactivity behavior now.
> > 
> > Good.. However.. [...]  before we get too happy about the interactive thing, let's
> > remember that sometimes interactivity comes at the expense of throughput,
> > and maybe if we fix the throughput we'll be back where we started.
> 
> Could there be both interactive and throughput optimizations, and a way
> to choose one or the other at run-time? Or even just at compile time? 

You can increase the queue size (somewhere in drivers/block/ll_rw_block.c)
to get higher throughtput.