From mboxrd@z Thu Jan  1 00:00:00 1970
From: Oliver Nittka <oly@nittka.com>
Subject: Re: Beginner's questions on userspace latency
Date: Sun, 24 Mar 2013 21:09:47 +0100
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Cc: Staffan Tjernstrom <stjernstrom@eagleseven.com>,
	tstone@krieglstein.org, tglx@linutronix.de
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Thank you all very much for your insights!

I was experimenting some more on the weekend, and before I could
investigate everything I learned from you, CPU isolation did the trick
for me (using cset just like shown in the wiki).

I originally thought sched_setaffinity() would suffice, but giving the
application its own CPU helped a lot. Didn't get anything over 1.735 ms
for two days now.

FYI: this is running on a Kontron pITX-SP
http://de.kontron.com/products/boards+and+mezzanines/embedded+sbc/pitx+25+sbc/pitxsp.html.

Thanks again!

  -- o