Re: [PATCH]sched: Isochronous class v2 for unprivileged soft rt scheduling

From: Paul Davis
Date: Sat Jan 22 2005 - 09:08:54 EST


>>>>>> "Jack" == Jack O'Quin <joq@xxxxxx> writes:
>
>
>Jack> Looks like we need to do another study to determine which
>Jack> filesystem works best for multi-track audio recording and
>Jack> playback. XFS looks promising, but only if they get the latency
>Jack> right. Any experience with that?
>
>The nice thing about audio/video and XFS is that if you know ahead of
>time the max size of a file (and you usually do -- because you know
>ahead of time how long a take is going to be) you can precreadte the
>file as a contiguous chunk, then just fill it in, for minimum disc
>latency.

I don't know what world you're in, but this simply isn't the case in
my experience - you generally have absolutely no idea how long a take
is going to be.

--p
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