Subject: Re: [linux-audio-dev] 2.4.0-test8 low-latency
From: Paul Winkler (slinkp23_AT_yahoo.com)
Date: Wed Sep 13 2000 - 13:52:53 EEST
Benno Senoner wrote:
> Latencytest sucks in the current form, my plans are rewriting it from
> scratch, but because of lack of time and lazyness it did not happen yet.
Understood. I figured my patch might be a useful stopgap.
My changes were just things that seemed nice to me...
> PS: Paul, the thing with the 80% CPU usage is true:
> the more CPU you consume, the worse the overall system performance,
> disk IO included (this is almost inevitable since there is no CPU left to
> process the data read from/written to disk.)
It seemed odd to me that there was such a sharp threshold: setting
it to 76% the test runs fine; setting it to 77% the test takes about
30 minutes to finish and the output graphs show perfect performance,
when in fact what seems to be happening is that the stress code
takes over the system entirely, and then when it finally finishes
latencytest is testing a lightly loaded system (until the next
stress test).
--
................. paul winkler ..................
slinkP arts: music, sound, illustration, design, etc.
web page: http://www.slinkp.com
A member of ARMS: http://www.reacharms.com
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