Re: CFQ IO scheduler patch series - AIM7 DBase results on a 16-way IA64

From: Jens Axboe
Date: Mon Apr 30 2007 - 08:32:30 EST

On Mon, Apr 30 2007, Alan D. Brunelle wrote:
> The results from a single run of an AIM7 DBase load on a 16-way ia64 box
> (64GB RAM + 144 FC disks) showed a slight regression (~0.5%) by adding
> in this patch. (Graph can be found at
> ) It is only a single
> set of runs, on a single platform, but it is something to keep an eye on
> as the regression showed itself across the complete run.

Do you know if this regression is due to worse IO performance, or
increased system CPU usage?

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
Please read the FAQ at