| From: | Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Jeremy Kerr <jk(at)ozlabs(dot)org>, pgsql-hackers(at)postgresql(dot)org, Stephen Frost <sfrost(at)snowman(dot)net>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Gurjeet Singh <singh(dot)gurjeet(at)gmail(dot)com> |
| Subject: | Re: [PATCH] backend: compare word-at-a-time in bcTruelen |
| Date: | 2009-06-24 05:29:45 |
| Message-ID: | 4A41B9C9.3040608@kaltenbrunner.cc |
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| Thread: | |
| Lists: | pgsql-hackers |
Robert Haas wrote:
> On Tue, Jun 23, 2009 at 10:46 PM, Jeremy Kerr<jk(at)ozlabs(dot)org> wrote:
>> Robert,
>>
>>> I'd still like to know the workload and exact numbers.
>> From up-thread:
>>
>> http://ozlabs.org/~jk/projects/db/data/postgres.bcTruelen/
>>
>> - or were there other details you were looking for?
>
> Oh!
>
> Very nice, sorry, missed the original message.
>
> You probably want to add your patch here:
> http://wiki.postgresql.org/wiki/CommitFestOpen
FWIW: I'm able to measure an even more significant improvement of around
10%:
http://archives.postgresql.org/pgsql-hackers/2009-06/msg01041.php on a
specific query.
Stefan
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