Messages in this thread | | | Date | Thu, 8 Nov 2007 11:16:33 -0800 (PST) | From | Christoph Lameter <> | Subject | Re: [patch 02/23] SLUB: Rename NUMA defrag_ratio to remote_node_defrag_ratio |
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On Thu, 8 Nov 2007, Matt Mackall wrote:
> > I cannot figure out what the number of cycles currently showing on the TSC > > have to do with a ratio :(. I could semi-understand if we were counting up > > how many cycles were being spent trying to pack objects but that does not > > appear to be the case. The comment didn't help a whole lot either. It felt > > like a cost for packing, not a ratio > > It's just a random number generator. And a bad one: lots of arches > return 0. And I believe at least one of them has some NUMA support.
Do we have a better one? Something with minimal processing overhead? I'd be glad to switch it.
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