Re: Understanding tsearch2 performance

From: Ivan Voras <ivoras(at)freebsd(dot)org>
To: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Understanding tsearch2 performance
Date: 2010-07-14 20:25:47
Message-ID: AANLkTik1zzx4ni4cFxuyQMAYCTCiSwdowrNlG4-drkiK@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-performance

On 14 July 2010 17:16, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov> wrote:
> Ivan Voras <ivoras(at)freebsd(dot)org> wrote:
>
>> which didn't help.
>
> Didn't help what?  You're processing each row in 22.8 microseconds.
> What kind of performance were you expecting?

Well, I guess you're right. What I was expecting is a large bump in
speed going from LIKE to tsearch2 but then there's also record
processing outside the index itself, which is probably where the time
goes.

In response to

Browse pgsql-performance by date

  From Date Subject
Next Message Scott Carey 2010-07-15 01:57:52 Re: performance on new linux box
Previous Message Kevin Grittner 2010-07-14 15:16:56 Re: Understanding tsearch2 performance