I am running RedHat 2.4.21-9.EL kernel with 1 Xeon processor. Here's a few questions regarding hyperthreading support on Xeon with this kernel.
1. I have heard that the 2.4 kernel only partially support hyperthreading. The full support comes in the 2.6 kernel. How are these 2 kernels different in supporting hyperthreading?
2. Do I need to run the smp kernel to enable hyperthreading even I'm running only 1 physical processor?
3. What's the relationship between irq balancing and hyperthreading? Is irq balancing a requirement for hyperthreading?
Many thanks in advance!