Tim Schmielau wrote:
> On Fri, 16 Sep 2005, Tim Schmielau wrote:
> The "Detected 1400.279 MHz processor." line just happens to be written
> _during_ time_init, when use_tsc is already set, but cycles_2_ns is not
> yet initialized.
That's exactly what I surmised as well. Our e-mails must
have crossed each other. :-)
> So I think everything is well-understood. It's just a matter of whether
> it's worth fixing.
Exactly. My own testing has focused on bootup time measurement.
Historically, the time spent before time_init() has been relatively
small and so I haven't (often) focused on trying to measure it
accurately. Although, I have done this on occasion to get
complete results.
Andrew's suggestion of a replaceable clock function would
satisfy me. What do other's think?
-- Tim
=============================
Tim Bird
Architecture Group Chair, CE Linux Forum
Senior Staff Engineer, Sony Electronics
=============================
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