Date: Wed, 15 Jun 2011 01:30:25 +0900 From: Kazuya Goda <gockzy@gmail.com> To: soc-status@freebsd.org Subject: [status report] RPS/RFS #week3 Message-ID: <BANLkTikzv1dH1yx28fmTfzuQ0q0V8jmgNA@mail.gmail.com>
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Hi, The goal of my project is to implement RPS/RFS on FreeBSD. RPS solves the problem of mono-queue NIC which can't distribute packets across multiple processors. *This week status: I search for a cause TCP connection problem.To solve problems, I got log of established connections. The results showed that established connection decrease on enable RPS kernel.I search for cause, but I don't know where is the bottleneck. *Next week: I continue to search for a cause. I think below plans: - Benchmark test on Linux kernel I check RPS performance on Linux kernel. - CPU selector change Packets aren't distributed CPU which running dispatcher. Dispatcher takes over CPU on high-load, this cause to reduce schedule length for protocol stack. Regards, Kazuya Goda
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