On 3/8/06, Yu,Glen [Ontario] <[EMAIL PROTECTED]> wrote: > Hi everyone, > > Thanks for you replies, I've installed the smp kernel > (kernel-image-2.4.27-2-686-smp) but now "cat /proc/cpuinfo lists 4 cpus! > However my supervisor has informed me that they should be single-core, rather > than dual-core Xeons, so I don't how Debian 3.1 is registering 4 cpus! I > there a different smp kernel I should be installing instead? > > Thanks, > > Glen Yu | [EMAIL PROTECTED]
You probably have HyperThreading enabled in your BIOS. You should be able to disable it there, and then see 2 CPUs. The benefits of HyperThreading appear minimal, and it actually has a negative impact for a lot of people, so it's probably better turned off unless you have specific tests showing that your applications run faster with it on. 2 cents.
