R: [PERFORM] R: DELETE queries slow down

2007-09-19 Thread Galantucci Giovanni
No, I perform a single DELETE for about 8/10 rows at a time. Yesterday I tried to raise the parameter default_statistics_target on the file postgresql.conf, setting it to 50 (previously it was set to 10) and everything went ok. It seems that postgres needs some time to adapt itself

Re: R: [PERFORM] R: DELETE queries slow down

2007-09-19 Thread Bill Moran
Galantucci Giovanni [EMAIL PROTECTED] wrote: No, I perform a single DELETE for about 8/10 rows at a time. Yesterday I tried to raise the parameter default_statistics_target on the file postgresql.conf, setting it to 50 (previously it was set to 10) and everything went ok. It

Re: R: [PERFORM] R: DELETE queries slow down

2007-09-19 Thread Gregory Williamson
Galantucci Giovanni [EMAIL PROTECTED] wrote: No, I perform a single DELETE for about 8/10 rows at a time. Yesterday I tried to raise the parameter default_statistics_target on the file postgresql.conf, setting it to 50 (previously it was set to 10) and everything went ok. It

[PERFORM] Tablespaces and NFS

2007-09-19 Thread Carlos Moreno
Hi, Anyone has tried a setup combining tablespaces with NFS-mounted partitions? I'm considering the idea as a performance-booster --- our problem is that we are renting our dedicated server from a hoster that does not offer much flexibility in terms of custom hardware configuration; so, the

[PERFORM] Low CPU Usage

2007-09-19 Thread brauagustin-susc
Hi all. Recently I have installed a brand new server with a Pentium IV 3.2 GHz, SATA Disk, 2GB of Ram in Debian 4.0r1 with PostgreSQL 8.2.4 (previously a 8.1.9). I have other similar server with an IDE disk, Red Hat EL 4 and PostgreSQL 8.2.3 I have almost the same postgresql.conf in both

Re: [PERFORM] Low CPU Usage

2007-09-19 Thread Heikki Linnakangas
[EMAIL PROTECTED] wrote: Recently I have installed a brand new server with a Pentium IV 3.2 GHz, SATA Disk, 2GB of Ram in Debian 4.0r1 with PostgreSQL 8.2.4 (previously a 8.1.9). I have other similar server with an IDE disk, Red Hat EL 4 and PostgreSQL 8.2.3 I have almost the same

Re: [PERFORM] Low CPU Usage

2007-09-19 Thread Mark Lewis
On Wed, 2007-09-19 at 10:38 -0700, [EMAIL PROTECTED] wrote: Hi all. Recently I have installed a brand new server with a Pentium IV 3.2 GHz, SATA Disk, 2GB of Ram in Debian 4.0r1 with PostgreSQL 8.2.4 (previously a 8.1.9). I have other similar server with an IDE disk, Red Hat EL 4 and

Re: [PERFORM] Low CPU Usage

2007-09-19 Thread brauagustin-susc
No, changing to fsync off didn't improve performance at all. Settings work_mem = 64MB max_stack_depth = 7MB #in the old server is 8MB but if I set in here give me the ulimit error max_fsm_pages = 204800 effective_cache_size = 512MB Atuvacuum is off. I have run vacuum full and vacuum analyze. The

Re: [PERFORM] Low CPU Usage

2007-09-19 Thread Scott Marlowe
On 9/19/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: No, changing to fsync off didn't improve performance at all. Settings work_mem = 64MB max_stack_depth = 7MB #in the old server is 8MB but if I set in here give me the ulimit error max_fsm_pages = 204800 effective_cache_size = 512MB

Re: [PERFORM] Low CPU Usage

2007-09-19 Thread brauagustin-susc
This is my dmesg file, I see there are some errors but I don't know how to manage!!! What do you mean with don't top post? Sorry but I'm new with this kind of mailing list and I don't want to botter some others. Sorry my bad English too. Thanks for your help - Mensaje original De:

Re: [PERFORM] Low CPU Usage

2007-09-19 Thread Scott Marlowe
On 9/19/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: This is my dmesg file, I see there are some errors but I don't know how to manage!!! nothing too horrible. Just wanted to make sure you weren't getting lots of bad sectors or timeouts. Nothing too bad looking there. What do you mean

Re: [PERFORM] Tablespaces and NFS

2007-09-19 Thread Craig James
Carlos Moreno wrote: Anyone has tried a setup combining tablespaces with NFS-mounted partitions? There has been some discussion of this recently, you can find it in the archives (http://archives.postgresql.org/). The word seems to be that NFS can lead to data corruption. Craig

Re: [PERFORM] Tablespaces and NFS

2007-09-19 Thread Peter Koczan
On 9/19/07, Carlos Moreno [EMAIL PROTECTED] wrote: Hi, Anyone has tried a setup combining tablespaces with NFS-mounted partitions? I'm considering the idea as a performance-booster --- our problem is that we are renting our dedicated server from a hoster that does not offer much