From owner-freebsd-current@FreeBSD.ORG Tue Dec 6 17:40:30 2011 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F1474106566C for ; Tue, 6 Dec 2011 17:40:30 +0000 (UTC) (envelope-from daniel@digsys.bg) Received: from smtp-sofia.digsys.bg (smtp-sofia.digsys.bg [193.68.3.230]) by mx1.freebsd.org (Postfix) with ESMTP id 7306A8FC12 for ; Tue, 6 Dec 2011 17:40:29 +0000 (UTC) Received: from [192.92.129.101] ([192.92.129.101]) (authenticated bits=0) by smtp-sofia.digsys.bg (8.14.4/8.14.4) with ESMTP id pB6HeKEW049345 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Tue, 6 Dec 2011 19:40:25 +0200 (EET) (envelope-from daniel@digsys.bg) Mime-Version: 1.0 (Apple Message framework v1251.1) Content-Type: text/plain; charset=iso-8859-1 From: Daniel Kalchev In-Reply-To: Date: Tue, 6 Dec 2011 19:40:21 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: References: <20111205192703.GA49118@onelab2.iet.unipi.it> <2D87D847-A2B7-4E77-B6C1-61D73C9F582F@digsys.bg> <20111205222834.GA50285@onelab2.iet.unipi.it> <4EDDF9F4.9070508@digsys.bg> <4EDE259B.4010502@digsys.bg> To: Jack Vogel X-Mailer: Apple Mail (2.1251.1) Cc: Luigi Rizzo , current@freebsd.org Subject: Re: datapoints on 10G throughput with TCP ? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Dec 2011 17:40:31 -0000 I see significant difference between number of interrupts on the Intel = and the AMD blades. When performing a test between the Intel and AMD = blades, the Intel blade generates 20,000-35,000 interrupts, while the = AMD blade generates under 1,000 interrupts. There is no longer throttling, but the performance does not improve..=20 I set it via=20 sysctl hw.intr_storm_threshold=3D0 Should this go to /boot/loader.conf instead. Daniel On Dec 6, 2011, at 7:21 PM, Jack Vogel wrote: > Set the storm threshold to 0, that will disable it, its going to = throttle your performance > when it happens. >=20 > Jack >=20