Re: [PERFORM] Postgresql Configutation and overflow

2007-01-09 Thread Jim C. Nasby
On Thu, Dec 28, 2006 at 10:35:29PM -0500, Dave Cramer wrote: > start with 25% of your 12G as shared buffers, and 75% of 12G for > effective cache I'm curious... why leave 3G for the kernel? Seems like overkill... Granted, as long as you're in the ballpark on effective_cache_size that's all that

Re: [PERFORM] Postgresql Configutation and overflow

2006-12-28 Thread Dave Cramer
Hi, On 28-Dec-06, at 8:58 PM, fabrix peƱuelas wrote: Good day, I have been reading about the configuration of postgresql, but I have a server who does not give me the performance that should. The tables are indexed and made vacuum regularly, i monitor with top, ps and pg_stat_activity an

Re: [PERFORM] Postgresql Configutation and overflow

2006-12-28 Thread Adam Rich
What are your table sizes? What are your queries like? (Mostly read, mostly write?) Can you post the "analyze" output for some of the slow queries? The three things that stand out for me is your disk configuration (RAID 5 is not ideal for databases, you really want RAID 1 or 1+0) and also tha