> While we're discussing, do we really want to use the "core" and "atom" > terms here? I thought cpu/cycles/ would be ok for the main (Big) CPU and
Yes absolutely. > that we should come up with some short name for the "litle" CPUs. There actually isn't a main CPU. There's nothing "better" about the big cores vs the Atoms anyways. They're all important CPUs. And the system might have no "big" CPUs, but we won't know until we finished onlining all CPUs. Or on Lakefield there are four Atoms and only a single big core. So with a non hybrid aware profiler tool you would miss most of the system if we used cpu// for the big core. Also I think renaming is a good idea because it forces the software or configuration to handle hybrid. Otherwise you just get subtle breakage all the time with some CPUs not getting profiled. It's a similar strategy as we do in the source code when semantics change. ARM did this right. -Andi
