linux-kernel - Re: System time drifts when processor idle.

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Message-ID: <AANLkTin2VLXw0dVetq0_fYQ_a_nsmHq10byyMs1e4DZX@mail.gmail.com>
Date:	Mon, 30 Aug 2010 10:03:53 +0200
From:	jean-philippe francois <jp.francois@...ove.com>
To:	john stultz <johnstul@...ibm.com>
Cc:	Venkatesh Pallipadi <venki@...gle.com>, Lin Ming <lin@...g.vg>,
	"H. Peter Anvin" <hpa@...or.com>, linux-acpi@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>, jslaby@...e.cz
Subject: Re: System time drifts when processor idle.

>
> jean-philippe: Is the drift always in 5 minute increments? Can you leave
> it idle for 3 minutes and see a similar 3 minute delay, or is it always
> in units of 5 ?
>

It looks like it is always a 5 minute delay, or sometimes 10.
Attached is an edited version with the interesting bits of a test running
for 8 hours

Jean-Philippe François

View attachment "longrun_edited.log" of type "text/x-log" (4579 bytes)