Re: [PERFORM] dedicated server & postgresql 8.1 conf tunning

2008-10-03 Thread Thomas Spreng
On 2. Oct, 2008, at 10:00, <[EMAIL PROTECTED]> <[EMAIL PROTECTED]> wrote: Unfornatly, i can't update pgsql to 8.3 since it's not in debian stable. Did you consider using backport packages (http://www.backports.org) for Debian Etch? They are providing postgresql v.8.3.3 packages for Debian E

Re: [PERFORM] Oddly slow queries

2008-04-26 Thread Thomas Spreng
On 22.04.2008, at 17:25, Scott Marlowe wrote: On Tue, Apr 22, 2008 at 7:42 AM, Thomas Spreng <[EMAIL PROTECTED]> wrote: I think I'll upgrade PostgreSQL to the latest 8.3 version in the next few days anyway, along with a memory upgrade (from 1.5GB to 4GB) and a new 2x RAID-1 (inst

Re: [PERFORM] Oddly slow queries

2008-04-22 Thread Thomas Spreng
On 19.04.2008, at 19:11, Christopher Browne wrote: Martha Stewart called it a Good Thing when [EMAIL PROTECTED] (Thomas Spreng) wrote: On 16.04.2008, at 17:42, Chris Browne wrote: What I meant is if there are no INSERT's or UPDATE's going on it shouldn't affect SELECT queries

Re: [PERFORM] Oddly slow queries

2008-04-22 Thread Thomas Spreng
On 19.04.2008, at 19:04, Scott Marlowe wrote: No, that will certainly NOT just affect write performance; if the postmaster is busy writing out checkpoints, that will block SELECT queries that are accessing whatever is being checkpointed. What I meant is if there are no INSERT's or UPDATE's go

Re: [PERFORM] rename constraint

2008-04-17 Thread Thomas Spreng
On 17.04.2008, at 14:03, sathiya psql wrote: Hi, I need to change the name of the constraint., Or i need to drop the constraint, and i need to create constraint with new name, how the impact of this in performance, because these constraint changes am going to do in a table which has 10 mill

Re: [PERFORM] Oddly slow queries

2008-04-16 Thread Thomas Spreng
On 16.04.2008, at 17:42, Chris Browne wrote: [EMAIL PROTECTED] (Thomas Spreng) writes: On 16.04.2008, at 01:24, PFC wrote: The queries in question (select's) occasionally take up to 5 mins even if they take ~2-3 sec under "normal" conditions, there are no sequencial scan

Re: [PERFORM] Oddly slow queries

2008-04-15 Thread Thomas Spreng
On 16.04.2008, at 01:24, PFC wrote: The queries in question (select's) occasionally take up to 5 mins even if they take ~2-3 sec under "normal" conditions, there are no sequencial scans done in those queries. There are not many users connected (around 3, maybe) to this database usually si

[PERFORM] Oddly slow queries

2008-04-15 Thread Thomas Spreng
Hi everyone, I have some serious performance problems on a database where some queries take up to 100 (or even more) times longer occasionally. The database itself consists of one bigger table (around 3.5GB in size and around 2 mio rows, 4-5 additional indexes) and some really small tables.