Messages in this thread | | | Date | Mon, 30 Apr 2007 14:27:53 +0200 | From | Jens Axboe <> | Subject | Re: CFQ IO scheduler patch series - AIM7 DBase results on a 16-way IA64 |
| |
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 > http://free.linux.hp.com/~adb/cfq/cfq_dbase.png ) 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@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |