Re: RT patch acceptance

From: Nick Piggin
Date: Tue May 24 2005 - 22:26:45 EST


Lee Revell wrote:

On Tue, 2005-05-24 at 19:20 -0700, Andrew Morton wrote:

Sven Dietrich <sdietrich@xxxxxxxxxx> wrote:

I think people would find their system responsiveness / tunability
goes up tremendously, if you drop just a few unimportant IRQs into
threads.

People cannot detect the difference between 1000usec and 50usec latencies,
so they aren't going to notice any changes in responsiveness at all.


The IDE IRQ handler can in fact run for several ms, which people sure
can detect.



Are you serious? Even at 10ms, the monitor refresh rate would have to be
over 100Hz for anyone to "notice" anything, right?... What sort of numbers
are you talking when you say several?

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