Re: concurrent IO in postgres?

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--- On Thu, 12/23/10, John W Strange <john.w.strange@xxxxxxxxxxxx> 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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