UDS Developments

[Len Ovens]

On Wed, May 9, 2012 1:39 am, Ralf Mardorf wrote:
> On Tue, 2012-05-08 at 22:02 +0200, Kaj Ailomaa wrote:
>
>> # CONFIG_NO_HZ is not set
>
> I and many others used NO_HZ yes for a long time without any issues. For
> testing purpose I switched to not set too.

There are still some tweaks we need to look at. I noticed that one as
well. We tend to be blind to some things. This one affects midi more than
audio as I understand... probably why we missed it.

> Don't forget to enable hrtimer/hpet modules and not to set all kinds of
> trace/debug options.
>
> Default CPU frequency scaling should be performance, but ondemand should
> be possible to.

Yup.

> If "threadirqs" wouldn't be compiled as a string to the kernel, it would
> be possible to boot without threadirqs. Dunno, but this might be an
> advantage for a recovery boot or if performance of the GUI sometimes is
> more important than threading for audio work. This might enable t simply
> use different boot options instead of using different kernels.

As we are also a graphics distro (or trying to be) it may be worth while
configuring grub to have three options per kernel. Graphics, Audio and
Recovery. Our main idea with making threadirqs a boot option was that it
would be easier to auto build because it is then the same as the normal
ubuntu kernel (no patches required) just a different config. But, you have
pointed out another reason.

Len

-- 
Len Ovens
www.OvenWerks.net