user time going down on successive reads

From: Piotr JaroszyÅski
Date: Mon Sep 07 2009 - 22:01:40 EST


i'm working on software that is archiving utime (and stime and some
other stuff too) of processes running in the system for later
analysis. I am reading all that data from /proc/[pid]/stat and I have
noticed that utime can actually go down on successive read (10 secs
later in this case). How is it possible? Is this a bug or I just don't
fully understand what utime is?

I have kernel if that matters.

Thanks in advance for help.

Best Regards,
Piotr JaroszyÅski
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