--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".
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