Re: [PATCH 1/3] clocksource: clean up clocksource_select
From: Alex Shi
Date: Thu Jul 04 2013 - 21:24:30 EST
On 07/04/2013 06:27 PM, Thomas Gleixner wrote:
>
> > BTW, why we allow user override a second best clocksource? I mean user
>
> > can override the tsc with hpet. because undetected unstable tsc?
>
The user can decide to override with clocksource=jiffies if he wants
>
for testing purposes. That wont switch into highres ever if done from
>
the kernel command line. Now we have a sysfs interface, so we need to
>
sanity check the user override against highres.
>
>
The override is quite useful to test hpet, pmtimer on a machine which
>
would always select TSC.
Got it. thanks a lot for friendly explanation!
--
Thanks
Alex
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