On Wednesday 12 April 2006 17:50, Marco van Tol wrote: > Hi there, > > My apologies if this is the wrong list to ask this kind of question. > I would appreciate a pointer to the correct list if it is please. :) > > I noticed in the code for gkrellm /usr/ports/sysutils/gkrellm2 that SMP > per-cpu statistics were not yet supported under FreeBSD, and decided to > check whether I could add that. (I'm running a (dual-core) Athlon64 X2 > with FreeBSD 6.1-PRERELEASE) > I can't find sample code and/or documentation on how to acquire that > information from the kernel. > > I checked > - gkrellm2 itself, which uses kern.cp_time in <gkrellm>/src/sysdeps/freebsd.c > - top, which also uses kern.cp_time in /usr/src/usr.bin/top/machine.c > > Some browsing around the internet doesn't get me much further either > unfortunately. I keep hitting the per-cpu statistics mentioned with regard > to uma(9). > > Under linux this can be acquired via /proc/stat. (And gkrellm looks realy > funky with per-cpu stats, but that may or may not be relevant depending on > the reader of this mail I guess ;) > > Is there an interface under FreeBSD to acquire the necessary per-cpu > statistics? > > Thank you very much in advance, appreciated, > > Marco van Tol
They don't exist currently. I have a patch to make the stats per-CPU for performance reasons (though it only helps out on systems with lots of CPUs (like 10) and hurts on systems with fewer CPUs (like 4)). It doesn't include a sysctl to get the per-CPU stats, but I could add one. -- John Baldwin <[EMAIL PROTECTED]> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
