General ?'s about UBStudio 10.04

Scott Lavender scottalavender at
Wed Jun 2 13:30:22 BST 2010

On Wed, Jun 2, 2010 at 6:54 AM, Ricardo Lameiro <ricardolameiro at>wrote:

> 2010/6/2 Mac McIlvaine <suemac at>
> Hi,
>> Just looking at updating from 9.10 to 10.04 and was wondering...
>> - has 10.04 got an rt kernel?
> NO for the i386 and a preemptive for the 64bit version, also available RT
> kernels at abogani PPA

A -rt kernel is available in the official Ubuntu repositories, however, it
is based on the 2.6.31 kernel.  This should be contrasted with the -generic
kernel that is also available but is based on 2.6.32.

So, you could choose to use the 2.6.31 -rt kernel but you would chance
loosing the improvements that the 2.6.32 affords.

Lastly, I would point out that I have been recording with the 2.6.32
-generic kernel and have been having a smashing good time with it.  With an
M-Audio Delta 44 (and even the Soundblaster Live) card I have been recording
with a latency of 11 msecs and not having any xruns (except when starting
another application of course).

If, however, you find that the -generic kernel is not enough for you,
Alessio Bogani (the Ubuntu Studio Team kernel guru) has suggested trying the
-preempt kernel next, especially on laptops because this kernel flavor
doesn't sacrifice power saving features (important for battery life).  This
kernel may not be available for 32 bit machines as Ricardo mentions.

If the -preempt kernel isn't enough, then Alessio suggests using the
-lowlatency kernel next.

And lastly, if nothing else scratches your low latency itch, then you can
try the -rt kernel.

I hope you find this information helpful.

-------------- next part --------------
An HTML attachment was scrubbed...

More information about the Ubuntu-Studio-users mailing list