Re: SSD + RAID - Mailing list pgsql-performance

From Peter Eisentraut
Subject Re: SSD + RAID
Date
Msg-id 1258479013.10724.32.camel@fsopti579.F-Secure.com
Whole thread Raw
In response to Re: SSD + RAID  (Merlin Moncure <mmoncure@gmail.com>)
List pgsql-performance
On tis, 2009-11-17 at 11:36 -0500, Merlin Moncure wrote:
> I am right now talking to someone on postgresql irc who is measuring
> 15k iops from x25-e and no data loss following power plug test.  I am
> becoming increasingly suspicious that peter's results are not
> representative: given that 90% of bonnie++ seeks are read only, the
> math doesn't add up, and they contradict broadly published tests on
> the internet.  Has anybody independently verified the results?

Notably, between my two blog posts and this email thread, there have
been claims of

400
1800
4000
7000
14000
15000
35000

iops (of some kind) per second.

That alone should be cause of concern.


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