Re: my boss want to migrate to ORACLE - Mailing list pgsql-performance
From | Stephane Tessier |
---|---|
Subject | Re: my boss want to migrate to ORACLE |
Date | |
Msg-id | 001f01c4763c$fcef40f0$4e00020a@develavoie Whole thread Raw |
In response to | Re: my boss want to migrate to ORACLE (markir@coretech.co.nz) |
Responses |
Re: my boss want to migrate to ORACLE
("Scott Marlowe" <smarlowe@qwest.net>)
Re: my boss want to migrate to ORACLE ("Matthew T. O'Connor" <matthew@zeut.net>) |
List | pgsql-performance |
I think with your help guys I'll do it! I'm working on it! I'll work on theses issues: we have space for more ram(we use 2 gigs on possibility of 3 gigs) iowait is very high 98% --> look like postgresql wait for io access raid5 -->raid0 if i'm right raid5 use 4 writes(parity,data, etc) for each write on disk use more transactions (we have a lot of insert/update without transaction). cpu look like not running very hard *php is not running on the same machine *redhat enterprise 3.0 ES *the version of postgresql is 7.3.4(using RHDB from redhat) *pg_autovacuum running at 12 and 24 hour each day -----Original Message----- From: pgsql-performance-owner@postgresql.org [mailto:pgsql-performance-owner@postgresql.org]On Behalf Of markir@coretech.co.nz Sent: 29 juillet, 2004 23:00 To: Stephane Tessier Cc: pgsql-performance@postgresql.org Subject: Re: [PERFORM] my boss want to migrate to ORACLE A furthur thought or two: - you are *sure* that it is Postgres that is slow? (could be Php...or your machine could be out of some resource - see next 2 points) - is your machine running out of cpu or memory? - is your machine seeing huge io transfers or long io waits? - are you running Php on this machine as well as Postgres? - what os (and what release) are you running? (guessing Linux but...) As an aside, they always say this but: Postgres 7.4 generally performs better than 7.3...so an upgrade could be worth it - *after* you have solved/identified the other issues. best wishes Mark Quoting Stephane Tessier <stephane.tessier@abovesecurity.com>: > Hi everyone, > > somebody can help me??????? my boss want to migrate to > ORACLE................ > > we have a BIG problem of performance,it's slow.... > we use postgres 7.3 for php security application with approximately 4 > millions of insertion by day and 4 millions of delete and update > and archive db with 40 millions of archived stuff... > > we have 10 databases for our clients and a centralized database for the > general stuff. > > database specs: > > double XEON 2.4 on DELL PowerEdge2650 > 2 gigs of RAM > 5 SCSI Drive RAID 5 15rpm > > tasks: > > 4 millions of transactions by day > 160 open connection 24 hours by day 7 days by week > pg_autovacuum running 24/7 > reindex on midnight ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
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