First, the specific question:

I want to tune the in-memory filesystem cache.  How do I make a
really, incredibly, disgustingly huge cache?  (I'd like to experiment
with different cache sizes on an NFS server.)

Second, the general question:

Is there a place I can go to find a list of tunable kernel parameters?
I've looked at options(4), which lists mostly boolean options; and
I've looked at param.c, which declares lots of parameters, but leaves
quite a few unexplained.

Chris

-- 
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Chris Jones                                    cjones@rupert.honors.montana.edu
           Mad scientist in training...
"Is this going to be a stand-up programming session, sir, or another bug hunt?"