Re: Mainline kernel OLTP performance update

On Fri, 23 Jan 2009, Pekka Enberg wrote:

quoted

I wonder why that doesn't happen already, actually. The slub_max_order
know is capped to PAGE_ALLOC_COSTLY_ORDER ("3") by default and obviously
order 3 should be as good fit as order 2 so 'fraction' can't be too high
either. Hmm.

On Fri, 2009-01-23 at 10:55 -0500, Christoph Lameter wrote:

The kmalloc-8192 is new. Look at slabinfo output to see what allocation
orders are chosen.

Yes, yes, I know the new cache a result of my patch. I'm just saying
that AFAICT, the existing logic should set the order to 3 but IIRC
Yanmin said it's 2.

			Pekka