On Thu, Jun 28, 2012 at 10:50:28AM -0700, Joe S wrote: > I'm looking to build a new mini-itx firewall based on OpenBSD and > would like to get some advice on CPU selection. I've seen multiple > statements on this list that indicate CPU cache and CPU speed are the > most important factors. Sorry if this is a silly question, but which > cache is most useful for what I'm trying to do? L1, L2, or L3?
https://en.wikipedia.org/wiki/CPU_cache#Multi-level_caches > What's more important from a CPU point of view? I don't have a > specific amount of throughput that I'm targeting. I'm very curious as > to what kind of differences I'm likely to see. > > By the way, the two CPU's I'm looking at are: > > Intel Atom D2500 (on Intel D2500CC motherboard) > Frequency (MHz): 1867 > L1 cache: 32 KB (code) / 24 KB (data) > L2 cache: 1024 KB > L3 cache: none > > Intel G620 (on Intel S1200KP motherboard) > Frequency (MHz): 2600 > L1 cache: 64 KB (code) / 64 KB (data) > L2 cache: 512 KB > L3 cache: 3072 KB > > The cache numbers are very different on these CPUs. > (both boards are mini-itx and have dual intel gigabit nics) -- Juan Francisco Cantero Hurtado http://juanfra.info
