Re: [PATCH] CFS: Fix missing digit off in wmult table

From: Roman Zippel
Date: Mon Jul 16 2007 - 18:14:11 EST


Hi,

On Mon, 16 Jul 2007, Ingo Molnar wrote:

> and note that even on the old scheduler, nice-0 was "3200% more
> powerful" than nice +19 (with CONFIG_HZ=300),

How did you get that value? At any HZ the ratio should be around 1:10
(+- rounding error).

> in fact i like it that nice -20 has a slightly bigger punch than it used
> to have before:

"Slightly bigger"??? You're joking, right?
Especially the user levels are doing something completely different now,
which may break user expectation. While the user couldn't expect anything
precise, it's still a big difference whether a process at nice 5 gets 75%
of the time or only 30%.

bye, Roman
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/