Low latency kernel in Karmic to help with PulseAudio?
Daniel T Chen
seven.steps at gmail.com
Wed May 6 06:26:08 BST 2009
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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
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
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.
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