Re: [PERFORM] Some ideas for comment

2005-08-25 Thread Jens-Wolfhard Schicke
--On Mittwoch, August 24, 2005 16:26:40 -0400 Chris Hoover <[EMAIL PROTECTED]> wrote: On 8/24/05, Merlin Moncure <[EMAIL PROTECTED]> wrote: Linux does a pretty good job of deciding what to cache. I don't think this will help much. You can always look at partial indexes too. Yes, but won't

Re: [PERFORM] Some ideas for comment

2005-08-24 Thread Chris Hoover
On 8/24/05, Merlin Moncure <[EMAIL PROTECTED]> wrote: > > Ok, there is always a lot of talk about tuning PostgreSQL on linux and > > how PostgreSQL uses the linux kernel cache to cache the tables and > > indexes. > [...] > > > > 1. Implement a partition type layout using views and rules - This > >

Re: [PERFORM] Some ideas for comment

2005-08-24 Thread Tom Lane
"Merlin Moncure" <[EMAIL PROTECTED]> writes: >> Right now, we are still on 7.3.4. However, these ideas would be >> implemented as part of an upgrade to 8.x (plus, we'll initialize the >> new clusters with a C locale). > yes, do this! Moving from 7.3 to 8.0 is alone likely to give you a noticeabl

Re: [PERFORM] Some ideas for comment

2005-08-24 Thread Alvaro Herrera
On Wed, Aug 24, 2005 at 12:56:54PM -0400, Chris Hoover wrote: > I don't have real numbers to give you, but we know that our systems > are hurting i/o wise and we are growing by about 2GB+ per week (net). > We actually grow by about 5GB/week/server. However, when I run my > weekly maintenance of

Re: [PERFORM] Some ideas for comment

2005-08-24 Thread Merlin Moncure
> Ok, there is always a lot of talk about tuning PostgreSQL on linux and > how PostgreSQL uses the linux kernel cache to cache the tables and > indexes. [...] > > 1. Implement a partition type layout using views and rules - This > will allow me to have one table in each view with the "active" dat

[PERFORM] Some ideas for comment

2005-08-24 Thread Chris Hoover
Ok, there is always a lot of talk about tuning PostgreSQL on linux and how PostgreSQL uses the linux kernel cache to cache the tables and indexes. My question is, is there anyway to see what files linux is caching at this moment? My reasoning behind this question is: I have several database syst