Subject: [linux-audio-user] Re: low tatency
From: Ben (ben_AT_glw.com)
Date: Thu Aug 12 2004 - 17:03:21 EEST
There was an article a few months back in Linux Journal that described
how to "lock" a thread onto a processor (and disallow any other threads
form running on that processor). If you were to lock the JACK process
into a single processor on an SMP box, wouldn't you effectively get
very low latency without any kernel patching or anything? You'd have
to use lock-free-fifo's to talk to the other processor (which is
running the UI, etc) of course. And you'd use a polling model to read/
write data to the soundcard.
Does ALSA have it's own thread in addition to the JACK thread, and
would it have to be on the same processor?
I'm not a Linux/Intel architecture guru, so forgive me if I've missed
some obvious points.
-Ben
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