From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-hackers(at)postgresql(dot)org, PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org> |
Subject: | Re: Some minor changes to pgbench |
Date: | 2006-08-23 14:21:31 |
Message-ID: | 44EC646B.4040103@commandprompt.com |
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Lists: | pgsql-hackers pgsql-patches |
Tom Lane wrote:
> "Joshua D. Drake" <jd(at)commandprompt(dot)com> writes:
>> Tom Lane wrote:
>>> Addition of foreign key checking will certainly impact performance
>>> significantly.
>
>> That is kind of the point. Without foreign keys it is a flawed test
>> because you wouldn't be running in production without them and thus you
>> can't bench without them.
>
> pgbench is not about reality, though. If we can't rely on it to give
> consistent results across versions then I don't think it's useful at all.
> There are many other benchmarks you can run that do speak to reality
> (eg OSDL's work).
Would it be worthwhile to add a switch so that the foreign key test is
only used "if" they use the switch in conjunction with a -i?
Joshua D. Drake
>
> regards, tom lane
>
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