Re: Demo patch - no interactivity 2.6

From: Ingo Molnar
Date: Wed Nov 26 2003 - 06:06:07 EST



On Mon, 24 Nov 2003, Con Kolivas wrote:

> I created this patch for demonstration purposes.
>
> People have raised concerns about the overhead of the interactivity
> estimator in 2.6 and it's effect on throughput. Some anecdotes report
> wild accusations of 20% loss (without hard data). [...]

this claim is nonsense, agreed. The only small change in performance
should be for microbenchmark things like lmbench's lat_ctx. But this cost
is well worth it.

Ingo
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