Re: Very poor performance with 2.6.4

From: Andi Kleen
Date: Sun Mar 28 2004 - 23:11:00 EST

Andreas Hartmann <andihartmann@xxxxxxxxxx> writes:
> Now, I switched off preemption. But the performance isn't much better:
> 8.8% (9.3% with preemption) more real-time compared to 2.4.25 and 28%
> (32.9% with preepmtion) more system-time.

Install oprofile and do a profile run on the 2.6 kernel. This should
tell you where the system time is wasted. Post the results on this


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