Subject: Re: [linux-audio-dev] Another Annoying "How Do I Get Started" Question
From: Andre Majorel (amajorel_AT_teaser.fr)
Date: Fri Jul 13 2001 - 23:13:42 EEST
On 2001-07-12 15:58 -0500, Christopher Lee wrote:
> >From the rtlinux.org FAQ
> ------------------------
> 6. Q: How well does it [rtlinux] work?
>
> A: Quite well. Worst-case times are about 15microseconds between the
> assertion of an interrupt and the starting of the realtime handler on a
> generic x86 PC, and better on the Alpha and PowerPC platforms. These times
> are close to the hardware limit, yet all of the power of Linux remains
> easily accessible to the realtime programmer.
Yuck! If you infrapolate, this means that a 4.77 MHz 8086 would
have had a 1500 µS IRQ latency. That would have been unworkable.
Something must have gone wrong along the way.
-- André Majorel <amajorel_AT_teaser.fr> http://www.teaser.fr/~amajorel/
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