Re: 2.6.12-rc6-mm1

["J.A. Magallon" <jamagallon@able.es>]

On 06.11, Con Kolivas wrote:
> 
> Here is what the patch _should_ have been. (*same warnings with this patch 
> about math demonstration and untested as should have been posted with the 
> earlier one*)
> 
> +	if (idle == NOT_IDLE || rq->nr_running > 1) {
> +		unsigned long prio_bias = 1;
> +		if (rq->nr_running)
> +			prio_bias = rq->prio_bias / rq->nr_running;
> +		source_load *= prio_bias;
> +	}
>  

Again... sorry, I don't try to be picky, just want to know if its worth or
not...

Would not be better something like:

	if (idle == NOT_IDLE || rq->nr_running > 1) {
		if (rq->nr_running)
			source_load = (source_load*rq->prio_bias) / rq->nr_running;
	}
  
wrt the integer math ? Think of

100*( 5/5) vs  500/5
100*( 6/5) vs  600/5
100*( 7/5) vs  700/5
100*( 8/5) vs  800/5
100*( 9/5) vs  900/5
100*(10/5) vs 1000/5

--
J.A. Magallon <jamagallon()able!es>     \               Software is like sex:
werewolf!able!es                         \         It's better when it's free
Mandriva Linux release 2006.0 (Cooker) for i586
Linux 2.6.11-jam24 (gcc 4.0.0 (4.0.0-3mdk for Mandriva Linux release 2006.0))