On Mon, Nov 22, 2010 at 5:34 AM, Amit Kulkarni <amitk...@gmail.com> wrote: > Hi, > > Could somebody include this in the FAQ? I found Daniel Hartmeier > personal page which shows how to get stack trace and line numbers. I > know that the stacktrace info is included somewhere on openbsd.org. > But the way Daniel presented was much better. That particular > presentation or a link should be in the FAQ too. They would be really > useful.
Like this one http://www.openbsd.org/faq/faq2.html#Bugs ? Example on the end looks exactly like his job. > > Thanks > >> The "someone" running a profiling kernel to identify the hot spots could be >> you. >> >> cd /sys/arch/<arch>/config >> config -p <kernelname> >> build a kernel from the ../compile/<kernelname>.PROF directory in the usual >> way >> kgmon -b to start profiling >> (generate some traffic) >> kgmon -h to stop profiling >> kgmon -p to dump stats >> gprof /bsd gmon.out to read stats... >> >> Assuming you're interested in routed traffic (rather than queuing traffic >> generated on a box itself), make sure you run the traffic source and sink >> on other machines routing through the altq box, don't source/sink traffic >> on the altq box itself.
