Re: bogomips discrepancy on Intel Core2 Quad CPU

[Bill Davidsen]

Bauke Jan Douma wrote:
> $> uname -a
> Linux skyscraper 2.6.22.5 #7 SMP PREEMPT Sun Sep 2 12:12:25 CEST 2007 
> i686 GNU/Linux
>
> $> cat /proc/cpuinfo | grep bogomips
> bogomips    : 4813.46
> bogomips    : 4810.91
> bogomips    : 4810.91
> bogomips    : 10583.94
>
> The latter seems way off base.
> Prod me for more info.
I see this occasionally on a dual, speedstep (or similar) finds a way to 
throttle down the cores under light load. I suspect that if you load the 
system:

  for n in 1 2 3 4; do
    nice -19 bash -c 'while true; do a=$RANDOM; done' &
  done

Then you should see your bogomips rise on all cores.


> bjd

	[... copy of output snipped, see the O.P. ...]

--
Bill Davidsen <davidsen@xxxxxxx>
  "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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