Messages in this thread | | | Subject | Re: [patch 1/4] - Potential performance bottleneck for Linxu TCP | From | Lee Revell <> | Date | Thu, 30 Nov 2006 11:51:09 -0500 |
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On Thu, 2006-11-30 at 09:33 +0000, Christoph Hellwig wrote: > On Wed, Nov 29, 2006 at 07:56:58PM -0600, Wenji Wu wrote: > > Yes, when CONFIG_PREEMPT is disabled, the "problem" won't happen. That is why I put "for 2.6 desktop, low-latency desktop" in the uploaded paper. This "problem" happens in the 2.6 Desktop and Low-latency Desktop. > > CONFIG_PREEMPT is only for people that are in for the feeling. There is no > real world advtantage to it and we should probably remove it again.
There certainly is a real world advantage for many applications. Of course it would be better if the latency requirements could be met without kernel preemption but that's not the case now.
Lee
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