Re: Playing with SATA NCQ

[Jens Axboe]

On Sun, May 29 2005, Jeff Garzik wrote:
> Michael Thonke wrote:
> >Well the subjective feeling is great through! What I noticed is a
> >improvement on rsync (goes slighty faster drive to drive).
> >The noise decrease now it only make noise on very heavy IO reads and 
> >writes.
> 
> 
> It might be as simple as...  NCQ means the drive is doing more work. 
> More work means more noise.

You can argue both ways :-). Usually more noise means more seeks and
thus less work done.

-- 
Jens Axboe

-
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/