Re: [LAU] resubmitting questions from last week

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To: Linux Audio User <linux-audio-user@...>, Paul Neaveill <boycotthell2005@...>
Date: Tuesday, August 4, 2009 - 6:35 pm

On Mon, 3 Aug 2009, Paul Neaveill wrote:

> Sorry if someone responded and we missed it, but despite much googling

I never did get an answer to some of those questions either, so I
figured maybe I'd been asking too many. (I have been posting a lot of
them lately.)

I think the ones you've got at the top for kernel options should be
safe. I'm going to try -- at least initially -- not adjusting any IRQ
priorities though. It might work, considering I've got a fast machine,
and from what I hear, there are even people getting away with ordinary
non-RT kernels these days.

Preempt RCU was supposed to be buggy for awhile, but tested now for two
years... (Source: LKML)

Somebody said NO_HZ was actually a good thing on a laptop being used for
pro-audio, and I suppose if you can do well on a laptop you can do well
anywhere... (Source: Some guy with a laptop.)

And HZ_1000 is recommended almost everywhere.

I don't know what the meaning of NO_HZ and HZ_1000 is together, but I
guess it'd mean a jiffy rate of 1000Hz, but only when interrupts are

I'm just putting stuff together from lots of googling too...

+ Brent A. Busby + "We've all heard that a million monkeys
+ UNIX Systems Admin + banging on a million typewriters will
+ University of Chicago + eventually reproduce the entire works of
+ Physical Sciences Div. + Shakespeare. Now, thanks to the Internet,
+ James Franck Institute + we know this is not true." -Robert Wilensky
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Messages in current thread:
[LAU] resubmitting questions from last week, Paul Neaveill, (Tue Aug 4, 2:23 am)
Re: [LAU] resubmitting questions from last week, Brent Busby, (Tue Aug 4, 6:35 pm)
Re: [LAU] resubmitting questions from last week, Paul Neaveill, (Tue Aug 4, 10:50 pm)