On Thu, Jul 9, 2009 at 1:49 PM, lee <l...@yun.yagibdah.de> wrote: > Hi, > > under what circumstances are you supposed to turn on NUMA support in > the kernel settings? I've googled about that and learned what NUMA is > about while trying to answer the question wheather I should enable it > in my kernel or not. But I couldn't find the answer I was looking for. > > Do Intel DualCores (E8400) support NUMA? Do you need special hardware, > like a special mainboard supporting NUMA, to benefit from this > feature? Do these CPUs support NUMA? It seems to me that leaving it > disabled is better in my case, and the kernel help also says that it's > probably better not to enable it if you don't have more than two > CPUs/cores. > > Now if I had a quad core CPU instead, would I better enable NUMA? Or > if I had an AMD instead of Intel, would I turn it on? Or should I > leave it turned on?
I think NUMA only makes sense in a CPU architecture where each group of processor cores have their own memory controller such as multi-socket AMD K8 or K10 (Opteron) and Intel Nehalem-based Xeons. Regards, Masood
