Date: Tue, 09 Mar 2010 10:26:29 +0200 From: Ian FREISLICH <ianf@clue.co.za> To: pyunyh@gmail.com Cc: current@freebsd.org Subject: Re: dev.bce.X.com_no_buffers increasing and packet loss Message-ID: <E1Noulp-0007Rc-Ro@clue.co.za> In-Reply-To: <20100305210435.GF14818@michelle.cdnetworks.com> References: <20100305210435.GF14818@michelle.cdnetworks.com> <20100305184046.GD14818@michelle.cdnetworks.com> <20100305175639.GB14818@michelle.cdnetworks.com> <E1NnVaT-0003Ft-3p@clue.co.za> <E1Nnc4d-0003mB-6e@clue.co.za> <E1Nne0Q-0003uZ-OR@clue.co.za>
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Pyun YongHyeon wrote: > patch can fix the RX issue you're suffering from. Anyway, would you > give it try the patch at the following URL? > http://people.freebsd.org/~yongari/bce/bce.20100305.diff > The patch was generated against CURRENT and you may see a message > like "Disabling COAL_NOW timedout!" during interface up. You can > ignore that message. It's been running for about 1:23 on the patched driver. I'm still seeing the com_no_buffers increase: [firewall2.jnb1] ~ # sysctl dev.bce |grep com_no_buffers dev.bce.0.com_no_buffers: 5642 dev.bce.1.com_no_buffers: 497 dev.bce.2.com_no_buffers: 6260612 dev.bce.3.com_no_buffers: 4871338 Interupt rate is down now, at about 3500 per second per interface. Interestingly setting net.inet.ip.fastforwarding=0 reduces CPU consumption from 25% to 9% and less packet loss. Ian -- Ian Freislich
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