Low latency kernel in Karmic to help with PulseAudio?

[Daniel T Chen]

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On Wed, 6 May 2009, Mackenzie Morgan wrote:

> A real-time (-rt) kernel is available and has been for at least a few
> releases.  PREEMPT (which Lennart says would help) was enabled once upon a
> time, but I think it was disabled due to high laptop battery usage or
> something like that.  After that email from Lennart, discussion about it came
> up again, but it was way too late in Jaunty's cycle to be changed by that
> point.

Not to mention that users of -rt tend to avoid PulseAudio rather 
emphatically. In fact, Launchpad carries at least one bug where 
performance with -rt is poor when PulseAudio is used (whereas -generic 
fares better).

Really, the RT patches make the kernel a completely different beast. 
Luckily the necessary mid-layer ALSA fixes uncovered late in the 9.04 
cycle positively affect both -generic and -rt. Testing Karmic with newer 
- -rt, ALSA, and PulseAudio is going to be a joyride indeed.

Dan
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