Re: Question about /proc/uptime

From: Rob Landley
Date: Tue Dec 31 2013 - 23:17:52 EST

On 12/30/13 09:26, Martin Schwidefsky wrote:
On Mon, 30 Dec 2013 16:11:10 +0100
Oleg Nesterov <oleg@xxxxxxxxxx> wrote:
Not sure I understand... except that timekeeping_resume() does

Hmm, you are right. The sleeptime is added to the monotonic boottime.
So the first value of /proc/uptime is the wall-time since boot.
And the second value is combined idle time over all cpus.

Is there an obvious way to query the non-suspend uptime from userspace?

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