Finding either boot time or login time
Owen Rees
owen.rees@hp.com
Mon Feb 2 17:37:00 GMT 2009
--On 02 February 2009 11:54 -0500 Cooper, Karl \(US SSA\) wrote:
> I don't know perl, but I did try both of these one-liners on my
> Cygwin 1.7 setup, and the output differs (by one second). I thought
> that was interesting.
I get a one second difference between the two formulae as well (due to the
use of 'int' in one but not the other) but that is insignificant compared
to the 1 hour and 43 minutes by which both are wrong (and that is since
rebooting at 08:57 this morning).
As far as I can tell, uptime does not include time spent in hibernation (or
suspend/sleep probably).
A little web searching suggests that not counting sleep time is probably
consistent with recent Linux behaviour.
I also noticed that the Windows Vista 'systeminfo' command gives the same
wrong answer for "System Boot Time".
--
Owen Rees; speaking personally, and not on behalf of HP.
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