Re: [git patches] IDE update

[Jens Axboe]

On Fri, Jul 08 2005, Ingo Molnar wrote:
> 
> * Jens Axboe <axboe@xxxxxxx> wrote:
> 
> > But! I used hdparm -t solely, 2.6 was always ~5% faster than 2.4. But 
> > using -Tt slowed down the hd speed by about 30%. So it looks like some 
> > scheduler interaction, perhaps the memory timing loops gets it marked 
> > as batch or something?
> 
> to check whether that could be the case, could you try:
> 
> 	nice -n -20 hdparm -t /dev/hdc
> 
> does that produce different results?

Same result, see my next mail, it turned out to be a read-ahead bug.

-- 
Jens Axboe

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