On Fri, 02 Nov 2012 23:58:39 +0100, Ralf Mardorf
<[email protected]> wrote:
Hi :)
on Ubuntu Studio Quantal I switched to
$ uname -a
Linux qrc 3.6.5-rt14 #1 SMP PREEMPT RT Fri Nov 2 21:36:37 CET 2012
x86_64 x86_64 x86_64 GNU/Linux
A kernel-rt seems to be much better on my machine.
With the kernel-lowlatency for a very small audio session, CPU usage
"< 10%", I get xruns with
sample_rate=48000
frames_period=512
Now, with the kernel-rt everything seems to be [Ok] with
frames_period=256
but with frames_period=128 I get xruns again.
Regards,
Ralf
Did you compare with a lowlatency of the same kernel version?
If not, the test is not very conclusive.
If you like to see some good results from a lowlatency kernel, try 2.6.37,
and perhaps also 2.6.38 and 2.6.39
As you might have experienced, something made kernels less reliable from
somewhere around version 3.
I haven't tried 3.6 series yet.
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