Subject: Re: Mainline kernel OLTP performance update

From: Andi Kleen <[email-masked]>
Date: Fri, 16 Jan 2009 11:20:32 +0100

"Zhang, Yanmin" <[email-masked]> writes:

> I think that's because SLQB
> doesn't pass through big object allocation to page allocator.
> netperf UDP-U-1k has less improvement with SLQB.

That sounds like just the page allocator needs to be improved.
That would help everyone. We talked a bit about this earlier,
some of the heuristics for hot/cold pages are quite outdated
and have been tuned for obsolete machines and also its fast path
is quite long. Unfortunately no code currently.

-Andi

-- 
[email-masked] -- Speaking for myself only.