Re: Maximum Possible Insert Performance?

Shridhar Daithankar <shridhar_daithankar@myrealbox.com>

From: Shridhar Daithankar <shridhar_daithankar@myrealbox.com>
To:
Cc: pgsql-performance@postgresql.org
Date: 2003-11-24T05:50:36Z
Lists: pgsql-performance
William Yu wrote:

> My situation is this. We have a semi-production server where we 
> pre-process data and then upload the finished data to our production 
> servers. We need the fastest possible write performance. Having the DB 
> go corrupt due to power loss/OS crash is acceptable because we can 
> always restore from last night and re-run everything that was done since 
> then.
> 
> I already have fsync off. Short of buying more hardware -- which I will 
> probably do anyways once I figure out whether I need more CPU, memory or 
> disk -- what else can I do to max out the speed? Operation mix is about 
> 50% select, 40% insert, 10% update.

Mount WAL on RAM disk. WAL is most often hit area for heavy updates/inserts. If 
you spped that up, things should be pretty faster.

A non-tried advice though. Given that you can afford a crash, I would say it is 
worth a try..

  Shridhar