Date: Thu, 4 Oct 2001 09:28:33 -0700 (PDT) From: Luigi Rizzo <rizzo@aciri.org> To: mike@sentex.net (Mike Tancsa) Cc: rizzo@aciri.org, freebsd-net@freebsd.org Subject: Re: How to increase TCP and UDP buffers (for IPv4/IPv6) Message-ID: <200110041628.f94GSXP45008@iguana.aciri.org> In-Reply-To: <21morto01so4jkebem9s5t1tf6ohm1uple@4ax.com> from Mike Tancsa at "Oct 4, 2001 8:38:54 am"
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> > sysctl -w net.inet.ip.intr_queue_maxlen=100 > > Hi, > Are there any nasty side effects for increasing this value ? Also, how > would one go about tracking down why net.inet.ip.intr_queue_drops is > incrementing ? In general, if your system is unable to drain ipintrq fast enough then you are hitting some CPU shortage, and increasing the queue size will not help, except perhaps in the short term or in peculiar situations where you have many interfaces, no fast_forwarding (this would help a lot here), or very bursty input traffic. cheers luigi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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