On 09/05/2013 03:30 PM, Merlin Moncure wrote: >> Standard advice we've given in the past is 25% shared buffers, 75% >> effective_cache_size. Which would make EFS *3X* shared_buffers, not 4X. >> Maybe we're changing the conventional calculation, but I thought I'd >> point that out. > > This was debated upthread.
Actually, no, it wasn't. Tom threw out a suggestion that we use 4X for historical reasons. That's all, there was no discussion. So, my point stands: our historical advice has been to set EFS to 75% of RAM. Maybe we're changing that advice, but if so, let's change it. Otherwise 3X makes more sense. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
