QNX Scheduler patch

QNX Scheduler patch

[Dan Mann]

Can anyone tell me about experience with the QNX scheduler patch done way
back for kernel 2.0.31?  I've been wanting to try it on a 2.4 series kernel
(I'm looking for best possible interactive performance under X), and I want
to know if it is worth porting to the 2.4 line.

Thanks,

Dan

Re: QNX Scheduler patch

[Anders Larsen]

On 2001-10-01 18:19:28 +0200 Dan Mann wrote:
> Can anyone tell me about experience with the QNX scheduler patch done way
> back for kernel 2.0.31?  I've been wanting to try it on a 2.4 series kernel
> (I'm looking for best possible interactive performance under X), and I want
> to know if it is worth porting to the 2.4 line.

You may wish to take a look at the Linux kernel preemption project at
  http://kpreempt.sourceforge.net/  (official site, patch for 2.4.6)
  http://tech9.net/rml/linux/       (bleeding edge, patch for 2.4.10+)

cheers
  Anders

Re: QNX Scheduler patch

[Remco Post]

> Can anyone tell me about experience with the QNX scheduler patch done way
> back for kernel 2.0.31?  I've been wanting to try it on a 2.4 series kernel
> (I'm looking for best possible interactive performance under X), and I want
> to know if it is worth porting to the 2.4 line.
> 
> Thanks,
> 
> Dan

I tried the patch once or twice. On small systems or systems under heavy load it did give a more responsive feeling on interactive applications. With more modern systems (I tested it on my PowerMac 7200/75) I think the difference is not worth the effort of porting the scheduler.

-- 
Met vriendelijke groeten,

Remco Post

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