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SubjectRe: [RFC 2/3] SLUB: Implement targeted reclaim and partial list defragmentation
On Sat, May 05, 2007 at 08:42:50AM -0700, Christoph Lameter wrote:
> On Sat, 5 May 2007, Andi Kleen wrote:
> > writes:
> > >
> > > NOTE: This patch is for conceptual review. I'd appreciate any feedback
> > > especially on the locking approach taken here. It will be critical to
> > > resolve the locking issue for this approach to become feasable.
> >
> > Do you have any numbers on how this improves dcache reclaim under memory pressure?
> How does one measure something like that?

You could measure how many dentries are flushed before an > order 1 allocation
is satisfied? Make sure to fill the dcache first.

There are no counters there for this, but that should be reasonably easy to add.


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