Date: Thu, 11 Mar 2004 13:43:30 +0000 From: Karl Pielorz <kpielorz@tdx.co.uk> To: Don Bowman <don@sandvine.com>, freebsd-isp@freebsd.org Subject: RE: FreeBSD polling mode - count 'lost' packets? Message-ID: <252877484.1079012610@raptor> In-Reply-To: <FE045D4D9F7AED4CBFF1B3B813C85337045D8422@mail.sandvine.com> References: <FE045D4D9F7AED4CBFF1B3B813C85337045D8422@mail.sandvine.com>
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--On 08 March 2004 10:17 -0500 Don Bowman <don@sandvine.com> wrote: > netstat -i will tell you these things, look for ifInErrors, ifOutErrors. > sysctl kern.polling will indicate if you can't poll fast enough. Hmmm, should kern.polling.suspect & kern.polling.lost_polls keep incrementing? Mine increment steadily. If you set kern.polling.enable=1 - they stay at zero - send a burst of traffic, and they keep incrementing steadily after that (about 20 or so a second). Even if there's no traffic at all... I don't seem to encounter any packet loss because of it... [This is with DEVICE_POLLING and HZ=1000 set in the Kernel config] - using 2 x em [Intel Pro-1000TX Cards both @ 100Mbit/FDX]. -Kp
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