Date: Thu, 20 Nov 2003 09:34:57 -0800 From: Avleen Vig <lists-freebsd@silverwraith.com> To: freebsd-hackers@freebsd.org Subject: Device polling, with SMP? Message-ID: <20031120173457.GE33548@silverwraith.com>
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Has anyone here used DEVICE_POLLING on an SMP box? I have one server which does recieve ~130kpps at times on an interface, but I cannot enable DEVICE_POLLING because hte system locks up under load from interrupts. In this case I'm not sure which is better, disabling one of the CPU's, or trying to make DECIVE_POLLING work with SMP. I read Luigi's paper at info.iet.unipi.it/~luigi/polling/ which at the end implies that DEVICE_POLLING on an SMP box might not make sense - but right now for me it would make sense as both CPU's are locked: One tries to handle interrupts The other tries to manage the application I could try forcing DEVICE_POLLING to compile as is suggested in that URL but I wanted to see if anyone had tried this before. The interface is an FXP. Thanks :) -- Avleen Vig Systems Administrator Personal: www.silverwraith.com EFnet: irc.mindspring.com (Earthlink user access only)
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