From owner-freebsd-net@FreeBSD.ORG Sat Oct 17 14:02:16 2009 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7B602106566C for ; Sat, 17 Oct 2009 14:02:16 +0000 (UTC) (envelope-from rihad@mail.ru) Received: from mx38.mail.ru (mx38.mail.ru [94.100.176.52]) by mx1.freebsd.org (Postfix) with ESMTP id 3A4A18FC16 for ; Sat, 17 Oct 2009 14:02:16 +0000 (UTC) Received: from [217.25.27.27] (port=20701 helo=[217.25.27.27]) by mx38.mail.ru with asmtp id 1Mz9rK-000PEa-00 for freebsd-net@freebsd.org; Sat, 17 Oct 2009 18:02:14 +0400 Message-ID: <4AD9CE66.3010800@mail.ru> Date: Sat, 17 Oct 2009 19:02:14 +0500 From: rihad User-Agent: Mozilla-Thunderbird 2.0.0.22 (X11/20090706) MIME-Version: 1.0 To: freebsd-net@freebsd.org References: <4AD6D99E.10805@mail.ru> <4AD95493.40200@mail.ru> In-Reply-To: <4AD95493.40200@mail.ru> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam: Not detected X-Mras: Ok Subject: Re: dummynet dropping too many packets X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Oct 2009 14:02:16 -0000 rihad wrote: > Just rebooted with the "ifp->if_snd.ifq_drv_maxlen = 1024;" kernel, all > ok so far. There's currenlty only 1000 or so entries in the ipfw table > and around 350-400 net mbps load, so I'll wait a few hours for the > numbers to grow to >2000 and 460-480 respectively and see if the drops > still occur. > I'm not sure of anything now... It's 7 p.m. here, and during this busy time of day in terms of network use there are 350-500 up to 600 drops per second at around 530-550 mbps net load. This is roughly equivalent to 2-7 mbps dropped on output. It might be better than before. Next thing I'll try is bce queue maxlen 1024 -> 2048, and HZ 2000 again "back" to 4000.