Re: [ACPI] Re: system freezes for 0.2 to 0.5 seconds when reading /proc/acpi/thermal_zone/THRM/temperature

[Sanjoy Mahajan <sanjoy@mrao.cam.ac.uk>]

I get the same short freezes with

  cat /proc/acpi/battery/*/{state,info}

and also with the 'acpi' command-line tool.  I'm about to try the the
suggested kernel profiling with -mm3 and will report the results.

Meanwhile:

>>> readprofile -r
>> do i have to activate something special during kernel configuration?
>Set CONFIG_PROFILING=y

That confuses me.  For readprofile support,
Documentation/basic_profiling.txt says

  Add "profile=2" to the kernel command line.

For Oprofile support it says:

  Configure with CONFIG_PROFILING=y and CONFIG_OPROFILE=y

The two together suggest that CONFIG_PROFILING shouldn't be needed for
readprofile.

-Sanjoy
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