| From: | Decibel! <decibel(at)decibel(dot)org> |
|---|---|
| To: | Josh Berkus <josh(at)agliodbs(dot)com> |
| Cc: | pgsql-advocacy(at)postgresql(dot)org, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Lukas Kahwe Smith <smith(at)pooteeweet(dot)org>, Jeff Davis <pgsql(at)j-davis(dot)com>, Greg Smith <gsmith(at)gregsmith(dot)com> |
| Subject: | Re: PostgreSQL vs. MySQL: fight |
| Date: | 2007-08-14 22:34:14 |
| Message-ID: | 20070814223413.GY54135@nasby.net |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-advocacy |
On Mon, Aug 13, 2007 at 10:16:15PM -0700, Josh Berkus wrote:
> Pavel,
>
> > I did't test MySQL three years, But three years ago, MySQL rollback
> > was really, really slow.
>
> Based on recent testing I did, rollbacks are very expensive -- like 3x to 4x
> the cost of the original insert in high-concurrency environments. Also not
> always reliable (as of 5.0).
Wow, that's a serious gotcha. If there's a way to reproduce that we
should certainly let Ian Barwick of MySQL gotchas fame know about it.
--
Decibel!, aka Jim Nasby decibel(at)decibel(dot)org
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
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