RE: [RFC] 4-level page table directories.

From: Chen, Kenneth W <kenneth.w.chen_at_intel.com>
Date: 2005-11-05 08:42:41
Robin Holt wrote on Friday, November 04, 2005 1:38 PM
> On Fri, Nov 04, 2005 at 10:51:07AM -0800, Chen, Kenneth W wrote:
> > Luck, Tony wrote on Wednesday, November 02, 2005 8:31 AM
> > > Good to hear that (though I must remember to specify what I mean
> > > by "small memory" when talking to SGI ... there are ia64 boxes
> > > with only 1G :-)
> > > 
> > > Ken: Any predictions on when a 4-level run might get to the
> > > top of your queue for a run with an industry standard transaction
> > > benchmark?
> > 
> > It turns out that we have measurable performance regression with
> > 4-level page table running industry database benchmark, the penalty
> > is ~0.2% (I thought the number would be smaller than 0.2%, but ...).
> > Our resolution with this workload is typically 0.05%.
> 
> Can you point me at this benchmark?

I hope everyone knows by now what this "industry standard database
transaction processing benchmark" is.  If not, please google it.

Sorry, this is the best I can do without breaking any U.S. law.

- Ken

-
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Received on Sat Nov 05 08:43:04 2005

This archive was generated by hypermail 2.1.8 : 2005-11-05 08:43:22 EST