Re: Mainline kernel OLTP performance update

Andrew Morton
2009-01-16T07:01:47Z

On Fri, 16 Jan 2009 17:46:23 +1100 Nick Piggin <nickpiggin@yahoo.com.au> wrote:

> On Friday 16 January 2009 15:12:10 Andrew Morton wrote:
> > On Fri, 16 Jan 2009 15:03:12 +1100 Nick Piggin <nickpiggin@yahoo.com.au>
> wrote:
> > > I would like to see SLQB merged in mainline, made default, and wait for
> > > some number releases. Then we take what we know, and try to make an
> > > informed decision about the best one to take. I guess that is problematic
> > > in that the rest of the kernel is moving underneath us. Do you have
> > > another idea?
> >
> > Nope. If it doesn't work out, we can remove it again I guess.
>
> OK, I have these numbers to show I'm not completely off my rocker to suggest
> we merge SLQB :) Given these results, how about I ask to merge SLQB as default
> in linux-next, then if nothing catastrophic happens, merge it upstream in the
> next merge window, then a couple of releases after that, given some time to
> test and tweak SLQB, then we plan to bite the bullet and emerge with just one
> main slab allocator (plus SLOB).

That's a plan.

> SLQB tends to be the winner here.

Can you think of anything with which it will be the loser?