Re: 10M row test in that MySQL benchmark

On Fri, Feb 25, 2005 at 01:58:14PM +0900, YAMAMOTO Takashi wrote:
> hi,
> 
> > unfortunately, most of the time is being spent with clock interrupts blocked,
> 
> this reminds me PR/26108.
> can you try the patch in the PR?

even without that patch, I don't see much difference in the clock drift
when a 2 CPU machine is idle vs. when I have both CPUs in the kernel
(and thus one would be waiting for the big lock).  to generate the latter
load, I ran 5 copies of "dd if=/dev/zero of=/dev/null bs=100m count=10000"
simultaneously.

so I'm not sure how to reproduce the problem.

-Chuck