Re: concurrent IO in postgres? - Mailing list pgsql-performance

From Andy
Subject Re: concurrent IO in postgres?
Date
Msg-id 409661.69535.qm@web111313.mail.gq1.yahoo.com
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In response to Re: concurrent IO in postgres?  (John W Strange <john.w.strange@jpmchase.com>)
Responses Re: concurrent IO in postgres?  (Ben Chobot <bench@silentmedia.com>)
List pgsql-performance
--- On Thu, 12/23/10, John W Strange <john.w.strange@jpmchase.com> wrote:

> Typically my problem is that the
> large queries are simply CPU bound..  do you have a
> sar/top output that you see. I'm currently setting up two
> FusionIO DUO @640GB in a lvm stripe to do some testing with,
> I will publish the results after I'm done.
>
> If anyone has some tests/suggestions they would like to see
> done please let me know.
>
> - John

Somewhat tangential to the current topics, I've heard that FusionIO uses internal cache and hence is not crash-safe,
andif the cache is turned off performance will take a big hit. Is that your experience? 




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