Messages in this thread | | | Date | Thu, 10 Jun 2004 02:12:28 +1000 | From | Anton Blanchard <> | Subject | Re: [PATCH] Use numa policy API for boot time policy |
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> For what?
No idea, I just want to convince myself that there arent any out there.
> IMHO 16MB hash table for a kernel structure is madness. A different data > structure is probably needed if it's really a problem > (is your dcache that big?). Or maybe just limit the dcache more aggressively > to keep the max number of entries smaller.
Yep, specSFS (an NFS benchmark) shows this up quite badly. I think Jose and Martin were looking at strategies for keeping the dcache under control.
This was on a machine with only 64GB of RAM, if we had an NFS server with more memory then its reasonable to want more memory dedicated to dentries. At that point we either need to increase the hash or look at using another structure.
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