Re: simple update queries take a long time - postgres 8.3.1

On Mon, Mar 31, 2008 at 11:18 PM, Tomasz Ostrowski <tometzky(at)batory(dot)org(dot)pl>
wrote:

> On 2008-03-31 21:16, mark wrote:
>
> > is the query I am running , and it takes over 10 seconds to complete
> > this query...
> > update users set number_recieved=number_recieved+1 where
> > uid=738889333;
>
> Every time or only sometimes?

i checked again, and it seems to be only sometimes.. and during these
times there are lot of other queries too running which I can see from
pg_stat_activity;

Upgrade to 8.3 will help as checkpoint writing algorithms were optimized
> there for lots of RAM.

I already am running 8.3.1 [ i mentioned in subject]. I am having the
default settings for those. can you pl. share the settings for check points:

current settings all default
#checkpoint_segments = 3 # in logfile segments, min 1, 16MB
each
#checkpoint_timeout = 5min # range 30s-1h
#checkpoint_completion_target = 0.5 # checkpoint target duration, 0.0 -
1.0
#checkpoint_warning = 30s # 0 is off