On Mon, Nov 16, 2015 at 11:18:42AM -0500, Luiz Capitulino wrote: > Peter, I'm giving a serious try on the cgroups patches and would be > glad to be enlightened if I'm missing something. But I don't see how > what you're proposing would solve the problem. > > My understanding of CAT is that if I want to reserve 80% of the cache > in socket-1 to $thread-A I also have to: > > 1. Create another mask reserving 20% of the cache in socket-1 > 2. Assign that mask to all other threads that may run in socket-1 > > If I'm right about this, then when a task with 20% reservation migrates > to socket-2 it will only access 20% of the cache there even though there > should be no restrictions in socket-2's cache.
Uh what? Task-A was bound to socket-1, it will never get to socket-2. Clearly I'm not getting these examples you're throwing around. Also, I explicitly do not want tasks that can migrate between sockets to have different performance profiles across those sockets. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
