| From: | grant(at)amadensor(dot)com |
|---|---|
| To: | "Scott Carey" <scott(at)richrelevance(dot)com> |
| Cc: | "grant(at)amadensor(dot)com" <grant(at)amadensor(dot)com>, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: Fun little performance IMPROVEMENT... |
| Date: | 2011-01-21 21:26:30 |
| Message-ID: | 9222245723d86e1dee3a6f424f04974a.squirrel@grant.boldlygoingnowhere.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
>
> My guess is its something hypervisor related. If this happened on direct
> hardware I'd be more surprised. Hypervisors have all sorts of stuff going
> on, like throttling the number of CPU cycles a vm gets. In your idle
> case, your VM might effectively occupy 1Ghz of a CPU, but 2Ghz in the
> loaded case.
>
I will be building a new machine this weekend on bare hardware. It won't
be very big on specs, but this is only 5 million rows, so it should be
fine. I will try it there.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Madhu Ramachandran | 2011-01-21 22:10:28 | Re: copy command and blobs |
| Previous Message | grant | 2011-01-21 21:24:47 | Re: Fun little performance IMPROVEMENT... |