Thread (2 messages) flat view 2 messages, 2 authors, 2001-03-26

Re: Sound skips

From: Iain Sandoe <hidden>
Date: 2001-03-26 04:30:18

quoted
there are a variety of things that can block for between 16 & 300 ms (not
necessarily IRQs).

what size fragments are you using?
2K. I have to rise it to 8KB to work fine. My friend with the G4 still have
very few interruptions even with 8KB.
OK.... if you can't do with such large fragments ....

 You might want to try Andrew Morton's Low-Latency patch (URL:
 http://www.uow.edu.au/~andrewm/linux/schedlat.html#downloads )

it makes things quite a lot better - but we still have a way to go on PPC
before we can achieve sub-ms block-free operation.  Another thing on the
audio TODO list ;-)

let me/us know how you do if you try it (last time I did, the patches
applied cleanly to the PPC BK tree) - you (could at the time) ignore the
x86-specific mods to head.S.

HTH,
Iain.

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
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