Date: Mon, 26 Jan 2015 12:05:58 -0800 From: Adrian Chadd <adrian@freebsd.org> To: freebsd-current <freebsd-current@freebsd.org> Subject: Is anyone using the schedgraph.d script? Message-ID: <CAJ-VmonoZ0bz2HRNi2s5yA7vNSeUAGjwnt80L8MBY9OOEz_9-w@mail.gmail.com>
next in thread | raw e-mail | index | archive | help
Hi, I'm having problems with Ryan's schedgraph.d script (people.freebsd.org/~rstone/dtrace/) It runs fine, but if a CPU core is 100% busy, I get zero scheduler events logged from it. Said core is doing around 30,000 syscalls a second, around 250,000 context switches and 125,000 interrupt sa second - but whilst it's doing this, I get zero events from dtrace for said CPU. Has anyone hit this kind of situation before? -a
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAJ-VmonoZ0bz2HRNi2s5yA7vNSeUAGjwnt80L8MBY9OOEz_9-w>