Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 13 Nov 2012 17:24:49 -0800 | From | Jacob Pan <> | Subject | Re: [PATCH 3/3] PM: Introduce Intel PowerClamp Driver |
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On Tue, 13 Nov 2012 16:03:00 -0800 "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
> Just to make sure I am really understanding what is happening, let's > suppose we have a HZ=1000 system that has a few tasks that > occasionally run at prio 99. These tasks would run during the clamp > interval, but would (for example) see the jiffies counter remaining > at the value at the beginning of the clamp interval until the end of > that interval, when the jiffies counter would suddenly jump by roughly > six counts, right?
Yes, if there is no interrupts disturb the clamping duration. We do not mask interrupts which will update jiffies.
-- Thanks,
Jacob
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