From owner-freebsd-questions Thu Feb 20 10:17:56 2003 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9A24637B405 for ; Thu, 20 Feb 2003 10:17:50 -0800 (PST) Received: from bragi.housing.ufl.edu (bragi.housing.ufl.edu [128.227.47.18]) by mx1.FreeBSD.org (Postfix) with ESMTP id 97D6F43FCB for ; Thu, 20 Feb 2003 10:17:48 -0800 (PST) (envelope-from WillS@housing.ufl.edu) content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 Subject: RE: network tuning Date: Thu, 20 Feb 2003 13:17:47 -0500 Message-ID: <0E972CEE334BFE4291CD07E056C76ED8CBBC02@bragi.housing.ufl.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: network tuning Thread-Index: AcLZArIf/hGi2lDvQQ+S0huiZONG0AACU6+A From: "Will Saxon" To: "Dan Nelson" Cc: Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > -----Original Message----- > From: Dan Nelson [mailto:dnelson@allantgroup.com] > Sent: Thursday, February 20, 2003 12:08 PM > To: Will Saxon > Cc: questions@FreeBSD.ORG > Subject: Re: network tuning >=20 > You first need to determine what is being overloaded. Run top. Is > ntop running at 100% cpu? If so, you'll need a faster machine. If > it's close to 100%, bumping debug.bpf_bufsize might help. =20 > What are the > user/system/irq CPU percentages while ntop is running? >=20 It's pretty close to 100% all the time. I guess I am overestimating the = horsepower of this machine. Oddly enough, while ntop itself claims to be using 80-95% of the cpu, = the user/system/irq generally does not add up to 100%. In fact, user is = generally 15-20%, system is 20-50%, irq is <10% and idle is >35% all the = time. I set the debug_bpf_bufsize also, to 65536. No change. Sounds like I get to spend some more money :). -Will To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message