Date: Thu, 3 Aug 2000 12:02:40 -0700 (PDT) From: Archie Cobbs <archie@whistle.com> To: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> Cc: jayanth <jayanth@yahoo-inc.com>, freebsd-net@FreeBSD.ORG Subject: Re: Max data queued for UDP Message-ID: <200008031902.MAA42267@bubba.whistle.com> In-Reply-To: <200008030354.XAA21343@khavrinen.lcs.mit.edu> from Garrett Wollman at "Aug 2, 2000 11:54:06 pm"
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Garrett Wollman writes: > 2) In m_pullup(), automatically copy the entire packet out of the > cluster if it would fit, and free the cluster. This will cost some, > but I think it's a win because the IP stack will call m_pullup almost > immediately upon receiving a packet, we're already committed to doing > a copy, and the current implementation of m_pullup will then allocate > an extra mbuf. (This would bite for multicast routing, however. The > way to fix that is to keep m_pullup out of the multicast routing code > path.) That sounds like a cool idea.. What is special about multicast that would be particularly problematic? -Archie ___________________________________________________________________________ Archie Cobbs * Whistle Communications, Inc. * http://www.whistle.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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