Re: Major regression on hackbench with SLUB (more numbers)

Peter Zijlstra
2007-12-21T22:17:15Z

On Fri, 2007-12-21 at 14:11 -0800, Christoph Lameter wrote:
> On Fri, 21 Dec 2007, Linus Torvalds wrote:
>
> > If you aren't even motivated to fix the problems that have been reported,
> > then SLUB isn't even a _potential_ solution, it's purely a problem, and
> > since I am not IN THE LEAST interested in having three different
> > allocators around, SLUB is going to get axed.
>
> Not motivated? I have analyzed the problem in detail and when it comes
> down to it there is not much impact that I can see in real life
> applications. I have always responded to the regression reported also via
> TPC-C.

But you are dismissing the hackbench regression, which is not a small
one. It runs an astonishing 10x slower.