Date: Thu, 31 May 2012 09:01:41 -0400 From: Ryan Stone <rysto32@gmail.com> To: Andriy Gapon <avg@freebsd.org> Cc: freebsd-hackers@freebsd.org, Adrian Chadd <adrian@freebsd.org>, Alexander Motin <mav@freebsd.org> Subject: Re: ULE/sched issues on stable/9 - why isn't preemption occuring? Message-ID: <CAFMmRNx-PYQ1cPKsOYLuBpf4UQXpwt23At5WULFQr0yU%2BqTbOg@mail.gmail.com> In-Reply-To: <CAFMmRNyLoA3ayfVjrEzU5wLpfwWaYU7yM7V9Ns0r0nrCTYmTXg@mail.gmail.com> References: <CAJ-VmomWV2XibSNSr5Mfh7mpKsWrX5GKsNfU9iq7TO6%2BKxxQhw@mail.gmail.com> <201205301124.52597.jhb@freebsd.org> <CAJ-VmokXN9Ci8j2ExZkA-U=fsrMmeOn-ULB0pCYdtSwqHWpiKQ@mail.gmail.com> <CAJ-VmomU8mK5W%2BKrj4Mtn=3R=EcqPB-YDd9LwNxZo49%2By96bzA@mail.gmail.com> <4FC76515.10302@FreeBSD.org> <CAFMmRNyLoA3ayfVjrEzU5wLpfwWaYU7yM7V9Ns0r0nrCTYmTXg@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, May 31, 2012 at 8:48 AM, Ryan Stone <rysto32@gmail.com> wrote: > KTR_SCHED comes with a performance hit. =A0Besides, with the DTrace > sched provider that I committed this month (and MFC'ed yesterday) you > can collect schedgraph data with a D script. I suppose it would have been helpful to provide a link to the script: http://people.freebsd.org/~rstone/dtrace/schedgraph.d Post-process it with this before feeding it to schedgraph.py: http://people.freebsd.org/~rstone/dtrace/make_ktr
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAFMmRNx-PYQ1cPKsOYLuBpf4UQXpwt23At5WULFQr0yU%2BqTbOg>