Date: Mon, 14 Sep 2009 12:38:00 +0500 From: rihad <rihad@mail.ru> To: Bruce Evans <brde@optusnet.com.au> Cc: freebsd-net@FreeBSD.org Subject: Re: [POLLING] strange interrupt/system load Message-ID: <4AADF2D8.5050505@mail.ru> In-Reply-To: <20090912202529.X1569@besplex.bde.org> References: <4AAB4D56.30207@mail.ru> <20090912202529.X1569@besplex.bde.org>
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Bruce Evans wrote: > On Sat, 12 Sep 2009, rihad wrote: > >> The box experiences ~230 mbit/s traffic flow through it. I've doubled >> some sysctls after reading polling(4): >> kern.polling.each_burst=10 # was: 5 >> kern.polling.burst_max=350 # was: 150 >> >> FreeBSD 7.2-RELEASE-p3 amd64 >> HZ=1000 > > How much better does it work without POLLING? > Without polling (current load around 190-200 mbit/s, around 24-26 kpps): top: CPU: 0.0% user, 0.0% nice, 8.4% system, 0.0% interrupt, 91.6% idle Interrupts/s: 18322 total 28 mpt0 irq16 1999 cpu0: time 6906 em0 irq256 3392 em1 irq257 1999 cpu1: time 1999 cpu2: time 1999 cpu3: time
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