Re: [STATUS 2.5] July 10, 2002

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Wed Jul 10 2002 - 16:07:12 EST


> Why was the rate incremented to maintain interactive performance? Wasn't
> that the whole idea of the pre-empt work? Does the burden of pre-empt
> actually require this?

Bizarrely in many cases it increases throughput

> It seems that the added inefficiency of these extra interrupts is going to
> drag performance down.

Sometimes - Beowulf folks already sometimes hack the clock down to 20Hz or
less. This is best approached on sane hardware by extending the S/390 stuff
for no regular ticks.

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