Re: (reiserfs) Re: An elevator algorithm

From: Ragnar Kjørstad (reiserfs@ragnark.vestdata.no)
Date: Sun Sep 24 2000 - 18:06:05 EST


On Fri, Sep 22, 2000 at 03:23:26PM -0700, Hans Reiser wrote:
> I think Xuan's algorithm is good, so I want to add to it.:-)
>
> Ragnar, I don't understand your objection to it. It is always the
> case that if you specify real
> time constraints that are impossible then they aren't met.

My objection was that in the case where it is impossible to serve
requests within the maximum latency, it would stop ordering the
requests.

With a FIFO queue, the throuput will be lower, and that will also
give longer latency.

-- 
Ragnar
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