Newsgroups: comp.sys.transputer
From: andyr@wizzy.com (Andy Rabagliati)
Subject: Re: One dumb question about DMA
Organization: W.Z.I.
Date: Fri, 1 Jul 1994 17:29:08 GMT
Message-ID: <Cs9v8K.3IK@wizzy.com>

Jan Vorbrueggen <jan@neuroinformatik.ruhr-uni-bochum.de> wrote:


>Ah, but Andy, isn't it the case that the DMA machines indeed do stop
>accessing memory when a hi-pri job is executing, although this isn't
>documented?

Indeed, Roger Shepherd corrected me in another post.

>Anyway, the solution is to have the processes serving the hard links
>run at hi-pri as well, which is better for the latency as well, and to
>do the number-crunchin at lo-pri.
>
> Jan


This is good general practice.

Cheers,     Andy.

