Messages in this thread | | | Date | Fri, 28 Aug 2009 09:25:59 -0400 | From | Rik van Riel <> | Subject | Re: RFC: THE OFFLINE SCHEDULER |
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raz ben yehuda wrote:
> yes. latency is a crucial property.
In the case of network packets, wouldn't you get a lower latency by transmitting the packet from the CPU that knows the packet should be transmitted, instead of sending an IPI to another CPU and waiting for that CPU to do the work?
Inter-CPU communication has always been the bottleneck when it comes to SMP performance. Why does adding more inter-CPU communication make your system faster, instead of slower like one would expect?
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