| From: | "Steinar H(dot) Gunderson" <sgunderson(at)bigfoot(dot)com> |
|---|---|
| To: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Feature Request --- was: PostgreSQL Performance Tuning |
| Date: | 2007-05-05 09:30:59 |
| Message-ID: | 20070505093059.GD12209@uio.no |
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| Thread: | |
| Lists: | pgsql-general pgsql-performance |
On Fri, May 04, 2007 at 09:07:53PM -0400, Greg Smith wrote:
> As if I don't know what the bogo stands for, ha! I brought that up
> because someone suggested testing CPU speed using some sort of idle loop.
> That's exactly what bogomips does.
Just for reference (I'm sure you know, but others might not): BogoMIPS are
measured using a busy loop because that's precisely the number the kernel is
interested in -- it's used to know for how long to loop when doing small
delays in the kernel (say, "sleep 20 microseconds"), which is done using a
busy loop.
/* Steinar */
--
Homepage: http://www.sesse.net/
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