| From: | Andy <angelflow(at)yahoo(dot)com> |
|---|---|
| To: | "wozniak(at)lanl(dot)gov" <wozniak(at)lanl(dot)gov>, "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>, John W Strange <john(dot)w(dot)strange(at)jpmchase(dot)com> |
| Subject: | Re: concurrent IO in postgres? |
| Date: | 2010-12-23 19:58:18 |
| Message-ID: | 409661.69535.qm@web111313.mail.gq1.yahoo.com |
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| Thread: | |
| Lists: | pgsql-performance |
--- On Thu, 12/23/10, John W Strange <john(dot)w(dot)strange(at)jpmchase(dot)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, and if the cache is turned off performance will take a big hit. Is that your experience?
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