> yes, I'd say start with about 25% of RAM, then adjust from there. If 25%
> takes you over your SHMMAX then start at your SHMMAX.

You're the first person I've seen to suggest that many buffers.  I've read
that too many can slow down performance.  I have 1.5 gigs of RAM on my
server but I'm also running a few other java programs that take up probably
500 megs total of memory, leaving me 1gig for Postgres.  Should I set my
shared buffers to be 25% of 1gig?  That would be 32768.  Then what should my
effective cache be?  Right now I have it set to 64000 which would be
512megs.  Between the buffers and cache that'd be a total of 768megs,
leaving approximately 768 for my other java apps & the OS.

Sounds reasonable to me.


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