| From: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Jeremy Kerr <jk(at)ozlabs(dot)org>, "<pgsql-hackers(at)postgresql(dot)org>" <pgsql-hackers(at)postgresql(dot)org>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc>, Gurjeet Singh <singh(dot)gurjeet(at)gmail(dot)com> |
| Subject: | Re: [PATCH] backend: compare word-at-a-time in bcTruelen |
| Date: | 2009-06-16 06:12:18 |
| Message-ID: | 4A3737C2.8090401@enterprisedb.com |
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| Lists: | pgsql-hackers |
Robert Haas wrote:
> The advice in Stephen's email is also very good - in particular,
> whatever you come up with, you should submit performance results.
> Note that while --enable-profiling is very useful and profiling
> numbers are good to submit, you'll also want to make sure you do a
> build that is optimized for speed (i.e. no profiling, no casserts, no
> debug) and do timings on that.
I'm particularly interested to see how much the patch hurts performance
in the cases where it's not helping.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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