Messages in this thread | | | Date | Mon, 03 Sep 2007 10:47:55 -0400 | From | Bill Davidsen <> | Subject | Re: bogomips discrepancy on Intel Core2 Quad CPU |
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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@tmr.com> "We have more to fear from the bungling of the incompetent than from the machinations of the wicked." - from Slashdot - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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