Re: RT patch acceptance

Thomas Gleixner
2005-05-30T11:16:15Z

On Mon, 2005-05-30 at 12:33 +0200, Ingo Molnar wrote:

> FYI, to get good latencies for jack you currently need the -RT tree and
> CONFIG_PREEMPT. (see Lee Revell's and Rui Nuno Capela's extensive tests)
>
> In other words, cond_resched() in might_sleep() (PREEMPT_VOLUNTARY,
> which i announced Jul 9 last year) is _not_ good enough for
> advanced-audio (jack) users. PREEMPT_VOLUNTARY is mostly good enough for
> simple audio playback / gaming.

It's neither good enough for a lot of embedded applications, but _RT is.

tglx