[Ardour-Users] Denormals

Q lists at quirq.ukfsn.org
Sat Dec 31 09:08:25 PST 2011


On 31/12/11 16:04, Paul Davis wrote:
> On Sat, Dec 31, 2011 at 10:59 AM, Al Thompson<althompson58 at gmail.com>  wrote:
>> On 12/31/2011 09:50 AM, Paul Davis wrote:
>>>
>>> are you using active frequency scaling (ie. power management)? this is
>>> not compatible with low latency realtime audio, JACK or otherwise.
>>> whatever tools your distro provides to manage this, you should disable
>>> it or set it to "performance" or something similarly worded.
>>
>> This has been an issue with me, too.  I recently got a new dual core
>> laptop, and am running Fedora 14, and nothing I've come across yet has
>> disabled CPU throttling.  It still insists that speed scaling is
>> controlled by the "ondemand" governor, and I can't even change CPU
>> speeds with the cpu-speed tools.
>
> i've never found any tools on F13 either, so i disabled it all in the
> BIOS. its one of the very few complaints i have about fedora, but i
> never notice it because of the aforementioned disabling.
>

I ran into frequency scaling issues many years ago and ever since my 
machine has been running permanently at full speed -- I think I fiddled 
with one of the config files to do that. The little panel applet says 
it's running on demand but I think it only has the option of full speed 
or full speed :-)

Q




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