Looking at top output on my linux server, I see a root owned process that is always in S mode whenever I look. How can I find out when was the last time it actually ran on a cpu and did something?
Thanks!
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migrated from stackoverflow.com Jan 3 '11 at 19:24
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Not terribly elegant, but you could run strace on it -- e.g. strace -ft -p PID and you won't get any output while it's sleeping. The -f will follow any forked child processes and the -t will prefix the output with the time of day (more t's = more precision). It can't look into the past but will show you the next time it does something (and what it's doing). | |||
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