Date: Tue, 20 Oct 2009 20:41:32 +0500 From: rihad <rihad@mail.ru> To: freebsd-net@freebsd.org Subject: Re: dummynet dropping too many packets Message-ID: <4ADDDA2C.3020206@mail.ru> In-Reply-To: <20091009082743.GB70940@lath.rinet.ru> References: <20091007085902.GA88982@lath.rinet.ru> <4ACC5E23.8090405@mail.ru> <20091007100503.GB88982@lath.rinet.ru> <4ACC6A7B.5050808@mail.ru> <20091007104525.GC88982@lath.rinet.ru> <4ACC7308.6070301@mail.ru> <4ACCC30E.7080504@elischer.org> <4ACCC4F3.3030302@mail.ru> <20091008060608.GA23793@lath.rinet.ru> <4ACE10CF.2030806@elischer.org> <20091009082743.GB70940@lath.rinet.ru>
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I'm so happy today: finally running a "ifp->if_snd.ifq_drv_maxlen = 4096;" and HZ=4000 kernel with 4100+ online users @500+ mbps, and, most importantly, with absolutely 0 drops since boot time! ;-) Even if drops do come in, I'll know where to look first. I'd like to express my gratitude to Robert Watson for pointing out the "ifnet transmit queue sizes" issue, to others who suggested the problem might be in dummynet's burstiness, and yet to others who tried hard to help with other suggestions. Thank you, folks! Tomorrow I'm going to suggest to my boss to donate some $$$ to the FreeBSD Foundation: http://www.freebsdfoundation.org/donate/
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