On Wednesday 24 June 2009 07:42:06 Gary Gatten wrote: > I have a process with several threads - the main "worker" threads > typically use < 20% CPU - but after upgrading to a new version they're > now using > 90% cpu. I'm trying to determine what function these > threads are performing that's requiring so much more cpu. Is it bad > code? I bug in a library I linked against? What? > > > > I've tried gdb with list, info threads, info stack, bt full. I can make > sense of some of it. I guess what I'm hoping for is something like > "top" at the thread level, such that functions that thread perform are > sorted highest util (time/whatever).
You'd typically turn on profiling, but sometimes less information is good, so you might be able to get the info you need by having your workers report the information. libwp[1] has some support for reporting that you could extend with values you're interested in. [1] http://www.garypennington.net/libwp/docs/html/ -- Mel _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
