From owner-freebsd-performance@FreeBSD.ORG Thu Dec 8 18:36:09 2005 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6774316A420 for ; Thu, 8 Dec 2005 18:36:09 +0000 (GMT) (envelope-from j_guojun@lbl.gov) Received: from smtp106.sbc.mail.mud.yahoo.com (smtp106.sbc.mail.mud.yahoo.com [68.142.198.205]) by mx1.FreeBSD.org (Postfix) with SMTP id C4F9943D67 for ; Thu, 8 Dec 2005 18:36:01 +0000 (GMT) (envelope-from j_guojun@lbl.gov) Received: (qmail 20745 invoked from network); 8 Dec 2005 18:35:58 -0000 Received: from unknown (HELO ?192.168.2.8?) (jinmtb@sbcglobal.net@68.127.176.52 with plain) by smtp106.sbc.mail.mud.yahoo.com with SMTP; 8 Dec 2005 18:35:58 -0000 Message-ID: <43987E6A.8030508@lbl.gov> Date: Thu, 08 Dec 2005 10:41:46 -0800 From: "Jin Guojun [VFFS]" User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.8b) Gecko/20051013 MIME-Version: 1.0 To: jaws References: <43981D8B.9030605@skyinet.net> In-Reply-To: <43981D8B.9030605@skyinet.net> Content-Type: text/plain; charset=windows-1255; format=flowed Content-Transfer-Encoding: 7bit Cc: Imri Zvik , freebsd-performance@freebsd.org Subject: Re: very busy syslog server X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Dec 2005 18:36:09 -0000 jaws wrote: > What you need is more sockets available and a much larger sockbufs. > Try adjusting the following parameters: > net.inet.udp.maxdgram > net.inet.udp.recvspace maxdgram has nothing to do with this on receiver side. If you want to play with this parameter, try to REDUCE it on sender side. But ignore this since the default is about 8-9KB, which is good enough. -- ------------ Jin Guojun ----------- v --- jin@george.lbl.gov --- Distributed Systems Department http://www.dsd.lbl.gov/~jin Lawrence Berkeley National Laboratory, Berkeley, CA 94720