Re: [PATCH 9/9] ia64: VIRT_CPU_ACCOUNTING (accurate cpu time accounting)

From: <>
Date: 2007-10-17 14:36:27
>>>>> "Peter" == Peter Chubb <> writes:

>>>>> "Hidetoshi" == Hidetoshi Seto <> writes:
>>> [9/9] ia64_acct_get_vtime.patch
Peter> trying to do this stuff.  Things to watch are: -- With Montvale
Peter> and later, the processor clock speed can be varied via ACPI.
Peter> Does ITC rate change?  

I've checked ... according to the latest IA-64 System Architecture,
ITC runs at constant rate even if the instruction execution rate
changes.  So you're safe.

Dr Peter Chubb  peterc AT           ERTOS within National ICT Australia

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Received on Thu Oct 18 10:00:33 2007

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