From owner-freebsd-net Sat Nov 17 17:19:16 2001 Delivered-To: freebsd-net@freebsd.org Received: from silby.com (cb34181-a.mdsn1.wi.home.com [24.14.173.39]) by hub.freebsd.org (Postfix) with ESMTP id D1C6537B416 for ; Sat, 17 Nov 2001 17:19:13 -0800 (PST) Received: (qmail 81311 invoked by uid 1000); 18 Nov 2001 01:19:12 -0000 Received: from localhost (sendmail-bs@127.0.0.1) by localhost with SMTP; 18 Nov 2001 01:19:12 -0000 Date: Sat, 17 Nov 2001 19:19:12 -0600 (CST) From: Mike Silbersack To: Alfred Perlstein Cc: , Subject: Re: t_dupacks to u_int? In-Reply-To: <20011117185102.H13393@elvis.mu.org> Message-ID: <20011117191447.D80912-100000@achilles.silby.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Sat, 17 Nov 2001, Alfred Perlstein wrote: > Any problems with this? > > -static int tcprexmtthresh = 3; > +static unsigned int tcprexmtthresh = 3; > +SYSCTL_UINT(_net_inet_tcp, OID_AUTO, rexmtthresh, CTLFLAG_RW, > + &tcprexmtthresh, 0, "Max duplicate acks before fast rexmit"); > + > tcp_cc tcp_ccgen; While this may be useful for those doing testing, I'm wondering if such a sysctl should be implemented. I have this bad feeling about net.inet.tcp.tcprexmtthresh=1 being added to the bogus pile of sysctls that should be changed which is sent to every person who asks how to tune their system. (Just look back through mailing list archives to see how man tweaks people are making that shouldn't be made.) Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message