[PERFORM] Speed in V8.0
Hello, i have a problem between V7.4.3 Cygwin and V8.0RC2 W2K. I have 2 systems: 1. Production Machine - Dual P4 3000MHz - 2 GB RAM - W2K - PostgreSQL 7.4.3 under Cygwin - i connect to it over a DSL Line 2. Develop Machine - P4 1800MHz - 760 MB RAM - PostgreSQL Native Windows - local connection 100MB/FD Both systems use the default postgresql.conf. Now the problem. I have an (unoptimized, dynamic) query wich was execute on the production machine over DSL in 2 seconds and on my develop machine, connected over local LAN, in 119 seconds! Whats this? I can not post the query details here public, its a commercial project. Any first idea? I execute on both machine the same query with the same database design! - Thomas Wegner CabrioMeter - The Weather Plugin for Trillian http://www.wegner24.de/cabriometer ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster
Re: [PERFORM] Speed in V8.0
2. Develop Machine - P4 1800MHz - 760 MB RAM - W2K - PostgreSQL 8.0 RC2 Native Windows - local connection 100MB/FD - Thomas Wegner CabrioMeter - The Weather Plugin for Trillian http://www.wegner24.de/cabriometer Thomas Wegner [EMAIL PROTECTED] schrieb im Newsbeitrag news:[EMAIL PROTECTED] Hello, i have a problem between V7.4.3 Cygwin and V8.0RC2 W2K. I have 2 systems: 1. Production Machine - Dual P4 3000MHz - 2 GB RAM - W2K - PostgreSQL 7.4.3 under Cygwin - i connect to it over a DSL Line 2. Develop Machine - P4 1800MHz - 760 MB RAM - PostgreSQL Native Windows - local connection 100MB/FD Both systems use the default postgresql.conf. Now the problem. I have an (unoptimized, dynamic) query wich was execute on the production machine over DSL in 2 seconds and on my develop machine, connected over local LAN, in 119 seconds! Whats this? I can not post the query details here public, its a commercial project. Any first idea? I execute on both machine the same query with the same database design! - Thomas Wegner CabrioMeter - The Weather Plugin for Trillian http://www.wegner24.de/cabriometer ---(end of broadcast)--- TIP 8: explain analyze is your friend
Re: [PERFORM] Speed in V8.0
Ok, i installed the 7.4.3 on the dev machine under Cygwin and the was 4 times slower than the V8. They need 394 seconds. Whats wrong with my dev machine. There was enough free memory available. - Thomas Wegner CabrioMeter - The Weather Plugin for Trillian http://www.wegner24.de/cabriometer Matt Clark [EMAIL PROTECTED] schrieb im Newsbeitrag news:[EMAIL PROTECTED] Another man working to the bitter end this Christmas! There could be many reasons, but maybe first you should look at the amount of RAM available? If the tables fit in RAM on the production server but not on the dev server, then that will easily defeat the improvement due to using the native DB version. Why don't you install cygwin on the dev box and do the comparison using the same hardware? M -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thomas Wegner Sent: 21 December 2004 23:03 To: pgsql-performance@postgresql.org Subject: [PERFORM] Speed in V8.0 Hello, i have a problem between V7.4.3 Cygwin and V8.0RC2 W2K. I have 2 systems: 1. Production Machine - Dual P4 3000MHz - 2 GB RAM - W2K - PostgreSQL 7.4.3 under Cygwin - i connect to it over a DSL Line 2. Develop Machine - P4 1800MHz - 760 MB RAM - PostgreSQL Native Windows - local connection 100MB/FD Both systems use the default postgresql.conf. Now the problem. I have an (unoptimized, dynamic) query wich was execute on the production machine over DSL in 2 seconds and on my develop machine, connected over local LAN, in 119 seconds! Whats this? I can not post the query details here public, its a commercial project. Any first idea? I execute on both machine the same query with the same database design! - Thomas Wegner CabrioMeter - The Weather Plugin for Trillian http://www.wegner24.de/cabriometer ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster ---(end of broadcast)--- TIP 8: explain analyze is your friend ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html
Re: [PERFORM] Speed in V8.0
Thats was it. Now the speed was ok. Thank you. - Thomas Wegner CabrioMeter - The Weather Plugin for Trillian http://www.wegner24.de/cabriometer Ragnar Hafstað [EMAIL PROTECTED] schrieb im Newsbeitrag news:[EMAIL PROTECTED] On Wed, 2004-12-22 at 00:03 +0100, Thomas Wegner wrote: Hello, i have a problem between V7.4.3 Cygwin and V8.0RC2 W2K. I have 2 systems: 1. Production Machine - Dual P4 3000MHz - 2 GB RAM - W2K - PostgreSQL 7.4.3 under Cygwin - i connect to it over a DSL Line 2. Develop Machine - P4 1800MHz - 760 MB RAM - PostgreSQL Native Windows - local connection 100MB/FD Both systems use the default postgresql.conf. Now the problem. I have an (unoptimized, dynamic) query wich was execute on the production machine over DSL in 2 seconds and on my develop machine, connected over local LAN, in 119 seconds! has the development database been ANALYZED ? gnari ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html ---(end of broadcast)--- TIP 8: explain analyze is your friend
