Re: pgbench randomness initialization

On Thu, Apr 7, 2016 at 9:15 AM, Andres Freund <andres@anarazel.de> wrote:
> It's not about "covering it up"; it's about actually being able to take
> action based on benchmark results, and about practically being able to
> run benchmarks. The argument above means essentially that we need to run
> a significant number of pgbench runs for *anything*, because running
> them 3-5 times before/after just isn't meaningful enough.
>
> It means that you can't separate between OS caused, and pgbench order
> caused performance differences.

I'm not objecting to adding an option for this; but I think Fabien is
right that it shouldn't be the default.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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