On Sat, Sep 10, 2005 at 11:00:11PM +0200, nordi wrote:
Hi everybody!
Since an increasing number of users has hyper-threaded CPUs, it would be a good idea to include a SMP kernel for the 1CD install (just heard it is not there, no time+bandwidth to test myself). Otherwise, you will probably have significantly lower performance with this type of CPU. Since there is little space on only one iso, I suggest that we ship a SMP-enabled kernel for everybody. This should not decrease performance for uniprocessor machines but get you full speed on hyperthreaded CPUS.
Sure it does decrease performance on UP systems. It's just a question whether the loss does justify shipping an extra kernel. But to decide this you should do benchmarks about how much performance is lost. On hyper-thread processors it is even a question whether the performance loss by using an SMP kernel outweighs the speed gain by activating hyper-threading. Actually I don't know the answer about this question because I never meassured it and it is most likely dependant of your system usage pattern. Robert -- Robert Schiele Tel.: +49-621-181-2214 Dipl.-Wirtsch.informatiker mailto:rschiele@uni-mannheim.de