[OpenAFS-devel] fileserver profiling

[Kyle Moffett]

On Mar 20, 2005, at 10:18, Troy Benjegerdes wrote:
> So if I have a 1GB memcache, I assume this means the memory is
> completely unavailable for anything else?
>
> The linux buffer/page cache works quite nicely with NFS, and on a
> machine with several gigs of memory, if all you are doing is compiling,
> everything gets cached.
>
> What I'd really like to be be able to do is set the afsd memcache to
> zero and find a way to work with the underlying OS'es buffer cache.

IIRC there was some work in Linux 2.6 to write "cachefs", which is
essentially a way for the administrator to specify filesystem-backed
space for a kernel filesystem.  I think the Linux NFS client uses it,
you could probably look there for some sample code.

Cheers,
Kyle Moffett

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