Date: Mon, 13 Dec 1999 14:45:05 -0500 (EST) From: Bosko Milekic <bmilekic@dsuper.net> To: Doug White <dwhite@resnet.uoregon.edu> Cc: David Greenman <dg@root.com>, Tom <tom@uniserve.com>, Greg Prosser <greg@snickers.org>, freebsd <freebsd-stable@FreeBSD.ORG> Subject: Re: SYN Hardening patches? / SYN Code in 3.4-RC Message-ID: <Pine.OSF.4.05.9912131440040.2825-100000@oracle.dsuper.net> In-Reply-To: <Pine.BSF.4.21.9912130834160.74623-100000@resnet.uoregon.edu>
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On Mon, 13 Dec 1999, Doug White wrote: !> !>Because it doesn't make sense to separate it out? maxusers is a good !>general sizing knob; it should size everything that's related to server !>capacity. You should override the maxuser-based calculations IFF you know !>the calculated number isn't enough, even at maxusers 128. !> !>We have hard-core MDAs that get a 'options NMBCLUSTERS=16384' and !>'maxusers 128' based on real-world statistics. These machines routinely !>peak out at 10K mbuf clusters and 22MBytes of network memory. With the !>default settings they wouldn't last 10 minutes. !> !>And even with 16K mbufs they still die when large parts of the Net go !>away. !> !>Doug White | FreeBSD: The Power to Serve !>dwhite@resnet.uoregon.edu | www.FreeBSD.org !> Well, it appears I missed a TUNABLE_INT_DECL which twiddles with nmbufs as opposed to MAXUSERS, when NMBCLUSTERS is defined. My mistake! Thanks to all who pointed it out. Bosko. -- Bosko Milekic <bmilekic@dsuper.net> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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