On Mon, Mar 20, 2006 at 11:12:34AM -0800, Orion Henry wrote: > > I have to say I've been really impressed with the quality and diversity > of tools here to increase performance for PostgreSQL. But I keep seeing > a lot of the same basic things repeated again and again. Has anyone > looked into a "smart" or auto-adjusting resource manager for postgres? > > Consider for instance you set it to aggressively use system resources, > then it would do things like notice that it needs more work mem after > profiling a few thousand queries and adds it for you, or that a specific > index or table should be moved to a different spindle and does it in the > background, or that query plans keep screwing up on a particular table > so it knows to up the amount of stastics it keeps on that table. > > Is this a crazy idea or something someone's already working on? Feel free to submit a patch. :) Seriously, the issue here is that everyone who donates code for PostgreSQL already knows how to tune it, so they're unlikely to come up with a tool to do it for them (which is much harder than you might think). There is the configurator project on pgFoundry, which is a start in the right direction. Perhaps at some point a commercial entity might come out with some kind of automatic tuning tool as well. But I doubt you'll see anything come out of the core developers. Also, note that you could probably write such a tool without embedding it into the backend, so don't let that scare you off. :) -- Jim C. Nasby, Sr. Engineering Consultant jnasby@xxxxxxxxxxxxx Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
