From owner-freebsd-performance@FreeBSD.ORG Sat Dec 10 17:09:34 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 4716616A41F for ; Sat, 10 Dec 2005 17:09:34 +0000 (GMT) (envelope-from mat@mat.cc) Received: from plouf.absolight.net (plouf.absolight.net [193.30.224.136]) by mx1.FreeBSD.org (Postfix) with ESMTP id DB89843D5A for ; Sat, 10 Dec 2005 17:09:33 +0000 (GMT) (envelope-from mat@mat.cc) Date: Sat, 10 Dec 2005 18:09:30 +0100 From: Mathieu Arnold To: Imri Zvik , freebsd-performance@freebsd.org Message-ID: In-Reply-To: References: X-Mailer: Mulberry/3.1.6 (Win32) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-Mailman-Approved-At: Sat, 10 Dec 2005 17:39:38 +0000 Cc: 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: Sat, 10 Dec 2005 17:09:34 -0000 +-le 07/12/2005 12:44 +0200, Imri Zvik =E9crivait : | Hi! |=20 | I'm trying to setup a syslog server to serve a large group of servers. | For the syslog daemon, I have chosen rsyslogd, and the backend is mysql (on | a different machine). |=20 | The machine has 2 Intel Xeon 2.80GHz CPUs, and 1GB of RAM, and it is | running FreeBSD 6 (6.0-STABLE). |=20 | The problem is, that I see a lot of UDP packets being dropped: without any tweaking : # netstat -s -p udp udp: 750858021 datagrams received 0 with incomplete header 0 with bad data length field 0 with bad checksum 20003 with no checksum 142075741 dropped due to no socket 1152246 broadcast/multicast datagrams dropped due to no socket 1729027 dropped due to full socket buffers 0 not for hashed pcb 605901007 delivered 801662 datagrams output it's been up for a bit, and I don't use syslog but minirsyslogd, which is in the ports tree I believe. CPU: Intel(R) Celeron(R) CPU 2.40GHz (2400.09-MHz 686-class CPU) Origin =3D "GenuineIntel" Id =3D 0xf29 Stepping =3D 9 Features=3D0xbfebfbff real memory =3D 259194880 (247 MB) avail memory =3D 243978240 (232 MB) --=20 Mathieu Arnold