On Wed, 19 Jun 2002, Rusty Russell wrote:
>
> > That doesn't work. Think of SMT CPU pairs (aka HyperThreading) or
> > quads that share caches.
>
> This is the NUMA "I want to be in this group" problem. If you're
> serious about this, you'll go for a sys_sched_groupaffinity call, or
> add an extra arg to sys_sched_setaffinity, or simply use the top 16
> bits of the cpu arg.
Oh, yes. That makes sense. NOT.
> Sorry, the current interface is insufficient for NUMA *and* is
> impossible[1] for the user to use correctly.
Don't be silly.
Give _one_ good reason why the affinity system call cannot take a simple
bitmask? It's trivial to use, your arguments do not make any sense.
Linus
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Jun 23 2002 - 22:00:17 EST