CFT: vm_lowmem event handler patch for dirhash

[Ivan Voras]

Nick Barkas wrote:

> For more information and a bunch of graphs with results from my
> benchmarking, take a look at
> http://wiki.freebsd.org/DirhashDynamicMemory. Also, I'll be giving a
> talk about this project quite soon now at EuroBSDCon 2008.

It's interesting to see that the 2 MB cache is sometimes a little bit
faster than the 64 MB one (e.g. kernel build, svn operations, mail). Can
you point to an explanation? A bad hash function? Bucket count too low?
Experimental inaccuracy?

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