Re: 2.6.20-rc2+: CFQ halving disk throughput.

[Rene Herman]

Jens Axboe wrote:

> On Mon, Jan 01 2007, Andrew Morton wrote:

> > The patch would appear to need this fix:
> >
> > --- a/block/cfq-iosched.c~a
> > +++ a/block/cfq-iosched.c
> > @@ -592,7 +592,7 @@ static int cfq_allow_merge(request_queue
> >  	if (cfqq == RQ_CFQQ(rq))
> >  		return 1;
> >  
> > -	return 1;
> > +	return 0;
> >  }
> >  
> >  static inline void
> > _
> >
> > But that might not fix things...
>
> Yeah it is, but I don't think it'll fix it (if anything, it'll be more
> conservative).

(to possibly save others from trying -- no, doesn't fix any)

Rene.
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