On Thu, 12 Apr 2001, Pavel Machek wrote:

> > One rule of optimization is to move any code you can outside the loop. 
> > Why isn't the nice_to_ticks calculation done when nice is changed
> > instead of EVERY recalc.?  I guess another way to ask this is, who needs
> 
> This way change is localized very nicely, and it is "obviously right".

Except for two obvious things:

1. we need to load the nice level anyway
2. a shift takes less cycles than a load on most
   CPUs

Rik
--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

                http://www.surriel.com/
http://www.conectiva.com/       http://distro.conectiva.com.br/

-
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/

Reply via email to