> after deinstallation of oprofile and only soft reboots (no hardware power off)
> these values STAYED (linux 48 MB/s) !! even for a brand new installation of
> OpenSuSE 10.2 to another partition!
> After a hardware power off everything was again like before (26 MB/s).
>
> So now the interesting questions to me are:
>
> 1. What is oprofile doing with my system ?? Especially what is been changed
> that remains a reboot ??
this is odd. (but encouraging).. the one thing I can imagine oprofile
doing is disabling the nmi_watchdog... you can simulate the same effect
by passing "nmi_watchdog=0" on the kernel commandline
(and there's something in /proc/sys as well to disable it at runtime)
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