Re: Different scheduler behavior between 2.4 and 2.6

From: pradeep singh
Date: Mon Apr 30 2007 - 02:55:20 EST

On 4/30/07, Quan Sun <cfk.quan@xxxxxxxxx> wrote:
On 4/30/07, pradeep singh <2500.pradeep@xxxxxxxxx> wrote:
> Can you leave this to linux itself?
> Scheduler in 2.6 kernels performs better than 2.4 kernels.
> Did you try tweaking your timer frequency and preemptible kernel for
> better performance?
> ~psr

Yes, I have tried 100Hz, 250Hz. 100Hz works better than 250Hz.
And tried

It seem that, the only possible reason of performance loss from 2.4 to
2.6 is scheduler change.

How did you reach to this conclusion?
Try 100Hz + CONFIG_PREEMPT.I hope you must have tried this?
Do you still face problem?
Is a lot of IO involved in your applications?


Quan Sun

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