Instrumenting kernel for boot time profiling

[Tom Heydt-Benjamin]

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Hey Folks!
	I followed with interest the "Boot Poster Challenge" thread from
November.  If I am correct, all of the profiling results that were
demonstrated were done in userland by instrumenting the rc files and such.
	Has anyone experimented with instrumenting the kernel to try and get
fine grained profiling data from the earliest parts of the boot
process?  I need to do this for some experiments that we are
performing with power management of small mobile Linux devices, and
before I re-invent the wheel, I want to know what wisdom is available
on collecting timing data from the kernel starting early in the boot
process.

Sincerely Yours,
			---Tom Heydt-Benjamin
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