On 13-04-08 10:57 AM, Christoph Lameter wrote: > I think we could simplify things quite a bit if we either > > 1. Add any cpus specified with nohz_full/extended=xxx to > rcu_nocb. No check is then necessary anymore. > > or > > 2. Avoid the setting of cpus entirely? If full nohz mode is desired > then pick one cpu (f.e. the first one or the one that is used for xtime > updates) and then make all other cpus nohz. Set the affinity mask for the > rcuoXXX threads to that cpu.
I can imagine people with multi socket systems wanting to have a system partitioned with one "normal" core per physical socket, for timekeeping, RCU threads, etc, but #2 would prevent that. Paul. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
