Date: Sun, 12 Mar 2000 05:59:16 +0100 (CET) From: Oliver Fromme <olli@dorifer.heim3.tu-clausthal.de> To: freebsd-hackers@FreeBSD.ORG Subject: Re: Getting CPU usage in FreeBSD Message-ID: <200003120459.FAA54518@dorifer.heim3.tu-clausthal.de> In-Reply-To: <8advq0$a1h$1@atlantis.rz.tu-clausthal.de>
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Felipe Paulo Guazzi Bergo <guazzibe@dcc.unicamp.br> wrote in list.freebsd-hackers: > I am the author of gPS (http://gps.seul.org) and I'm trying to finish the > FreeBSD native poller. All I need now is a routine to get the CPU usage. > [...] > I've already looked at the source of top but couldn't get much from there. I'd recommend that you look at the vmstat source, located at /usr/src/usr.bin/vmstat.c. In particular, look at the line kread(X_CPTIME, cur.cp_time, sizeof(cur.cp_time)); Then look up the definition of kread() in the same file, and how the contents of cur.cp_time are used in the cpustats() function. Note that "cur" is a "struct statinfo", which is defined in /usr/include/devstat.h. The CPU states are defined in /usr/include/sys/dkstat.h. That should get you going. :-) Regards Oliver -- Oliver Fromme, Leibnizstr. 18/61, 38678 Clausthal, Germany (Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de) "In jedem Stück Kohle wartet ein Diamant auf seine Geburt" (Terry Pratchett) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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