Re: SLUB performance regression vs SLAB

[Arjan van de Ven]

On Thu, 4 Oct 2007 10:38:15 -0700 (PDT)
Christoph Lameter <clameter@xxxxxxx> wrote:


> Yeah the fastpath vs. slow path is not the issue as Siddha and I
> concluded earlier. Seems that we are mainly seeing cacheline bouncing
> due to two cpus accessing meta data in the same page struct. The
> patches in MM that are scheduled to be merged for .24 address 


Ok every time something says anything not 100% positive about SLUB you
come back with "but it's fixed in the next patch set"... *every time*.

To be honest, to me that sounds that SLUB isn't ready for prime time
yet, or at least not ready to be the only one in town...

The day that the answer is "the kernel.org slub is fixing all the
issues" is when it's ready..
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