[OpenAFS] cache performance

[Nathan Neulinger]

The cache manager is part of the client. So, yes, it is contacted.

As long as a callback is still present with the server, there shouldn't
be any communication with the file server. 

So, one possible solution would be a cache manager debug set (fs setset)
that had a very minimal amount of logging generated - to where you could
reasonably run fstrace regularly on clients. i.e. not a full bore -
every access, just file opens. 

-- Nathan

On Tue, 2002-10-29 at 21:06, Lester Barrows wrote:
> Whenever a file is accessed on the client, I believe it contacts the cache 
> manager to ensure that it hasn't changed. Perhaps the cache manager, rather 
> than the file server, would be the most authoritative place to collect this 
> information.
> 
> Regards,
> Lester Barrows
> 
> On Tuesday 29 October 2002 03:08 pm, Nathan Neulinger wrote:
> > What sort of additional logging are you looking for in the file server?
> >
> > Also, how do you plan on handling the "if it's already in the cache, the
> > file server probably won't see a request" issue?
> >
> > Adding more logging is relatively easy to do, just come up with a list.
> >
> > -- Nathan
> 
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-- 

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216