On Fri, 08 Jun 2007 10:14:03 +0200, Gerard H. Pille wrote:
> [1.] One line summary of the problem:
> Since I switched from 2.6.20 to 2.6.21 on my Athlon AMD64 laptop, the system
> time is slow - about 1' on 15'.
According to your system description it seems that you have a
Targa Visionary laptop with a VIA chipset and a Mobile Athlon64.
If so, then you probably have the same problem I reported some time
ago: see <http://marc.info/?l=linux-kernel&m=117681226421346&w=2>
and the followup messages. The conclusion was that the chipset's
ACPI PM timer slows down when the CPU is in C2.
The workaround is to boot with processor.max_cstate=1.
/Mikael
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