[LAU] xrun problems. (Was Re: Introduction to Ardour 3.0 MIDI)

[Paul Davis]

On Wed, Mar 30, 2011 at 8:18 AM, Clemens Ladisch <clemens at ladisch.de> wrote:
> Paul Davis wrote:
>> i have a 6 core athlon phenom II X6 1090T (3.6GHz) system. i get xruns
>> "regularly". i don't know why.
>
> Modern power management mechanisms are quite aggressive, but increase
> latency because of all the time needed to wake the hardware up again.
>
> Try disabling C1E in the BIOS, and/or try disabling CPU frequency
> scaling.

already off.

> If the xruns do happen in regular time intervals, your problem might be

i put "regular" in quotes to avoid the implication of "periodic". they
are not periodic, but they happen randomly but with enough frequency
that anyone would notice them. they occur at close to zero system
load.

i tried an RT kernel from CCRMA and it hosed the video driver (nouveau).