Messages in this thread | | | Date | Sat, 5 May 2007 19:11:53 +0200 | From | Andi Kleen <> | Subject | Re: [RFC 2/3] SLUB: Implement targeted reclaim and partial list defragmentation |
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On Sat, May 05, 2007 at 08:42:50AM -0700, Christoph Lameter wrote: > On Sat, 5 May 2007, Andi Kleen wrote: > > > clameter@sgi.com 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.
-Andi
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