Discrepancy in measuring performance?

William E. Skeith III wes_zilla at yahoo.com
Tue Apr 3 06:30:45 CEST 2012

Sorry for generating so much traffic in one day : (  I have (sort of)
figured out what the issue is.  It turns out I am affected by a bug in
the linux kernel (or perhaps just my distribution):


I ran powertop, and noticed *tons* of interrupts from acpi.  After
booting with acpi disabled, I got exactly the results I expected from my
test program.  Sorry for wasting everyone's time.


p.s. I'm now extra impressed by the speed program for finding a way to
make itself immune to this.

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