Skip site navigation (1) Skip section navigation (2)

Re: TSearch2 and optimisation ...

From: Hervé Piedvache <footcow(at)noos(dot)fr>
To: pgsql-performance(at)postgresql(dot)org
Cc: Josh Berkus <josh(at)agliodbs(dot)com>, Hervé Piedvache <herve(at)elma(dot)fr>
Subject: Re: TSearch2 and optimisation ...
Date: 2004-08-26 19:30:40
Message-ID: 200408262130.40500.footcow@noos.fr (view raw or flat)
Thread:
Lists: pgsql-performance
Le Jeudi 26 Août 2004 19:48, Josh Berkus a écrit :
> Herve'
>
> > (cost=0.00..4052.84 rows=1351 width=166) (actual time=109.766..5415.108
> > rows=139 loops=1)
> >                      Index Cond: (idxfti @@ '\'postgresql\''::tsquery)
> >                      Filter: (idxfti @@ '\'postgresql\''::tsquery)
> >
> >From this, it looks like your FTI index isn't fitting in your sort_mem.
>
> What's sort_mem at now?  Can you increase it?

shared_buffers = 3000
sort_mem = 10240

> Overall, though, I'm not sure you can get this sub-1s without a faster
> machine.   Although I'm doing FTI on about 25MB of FTI text on a
> single-processor machine, and getting 40ms response times, so maybe we can
> ...

Sorry I missed understand what you mean here ... 
You tell me to upgrade the hardware but you manage a 25 Mb with a single 
processor ?? What you mean ?
My database is about 450 Mb ...

Regards,
-- 
Bill Footcow


In response to

pgsql-performance by date

Next:From: Josh BerkusDate: 2004-08-26 19:48:25
Subject: Re: Equivalent praxis to CLUSTERED INDEX?
Previous:From: Magnus HaganderDate: 2004-08-26 19:30:24
Subject: Re: Equivalent praxis to CLUSTERED INDEX?

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group