Date: Tue, 06 Jan 2009 23:53:35 -0800 From: Yuri <yuri@rawbw.com> To: freebsd-questions@freebsd.org Subject: How process CPU percentage is calculated? Message-ID: <49645F7F.80508@rawbw.com>
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I have a process that is CPU intense. 'top -C' shows CPU usage for this process no higher than 20%, more like 15-18%. But TIME field grows 10 sec for every 15-17 secs or real time. top(1) says: Each time -C flag is passed it toggles between "raw cpu" mode and "weighted cpu" mode So I am looking at "raw cpu". With 15-18% CPU every second of process TIME should correspond to ~6secs of real time, and in my case it's only ~1.6sec of real time. Why CPU field is so low? Yuri
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