https://bugzilla.kernel.org/show_bug.cgi?id=199245

--- Comment #4 from Paul Menzel ([email protected]) ---
(In reply to Chen Yu from comment #3)
> 54 ms seems not that slow to me IMO, and it might not be noticed from user
> experience. Since most of the time was taken during enumerate devices in
> the ACPI namespace according to the log, I assume the acpi_init() time
> consumed is highly platform specific.

I agree, that if only one task took that long, that wouldn’t be noticed. The
problem starts and it gets user noticeable, if several tasks take that long.
Therefore, the time of all tasks needs to be reduced.

> Besides, although acpi_bus_scan() is > protected by a mutex lock, it can not
> be
> run in parallel because it is mandatory for the other component.

If such a dependency exists, and it cannot be made independent, then maybe
there is an option to disable several components during runtime.

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