From owner-freebsd-questions@FreeBSD.ORG Thu Dec 1 21:32:48 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 B187616A41F for ; Thu, 1 Dec 2005 21:32:48 +0000 (GMT) (envelope-from wojtek@tensor.3miasto.net) Received: from chylonia.3miasto.net (chylonia.3miasto.net [213.192.74.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id 22AD543D69 for ; Thu, 1 Dec 2005 21:32:45 +0000 (GMT) (envelope-from wojtek@tensor.3miasto.net) Received: from chylonia.3miasto.net (localhost [127.0.0.1]) by chylonia.3miasto.net (8.13.4/8.13.4) with ESMTP id jB1LWaWA065787 for ; Thu, 1 Dec 2005 22:32:36 +0100 (CET) (envelope-from wojtek@tensor.3miasto.net) Received: from localhost (wojtek@localhost) by chylonia.3miasto.net (8.13.4/8.13.4/Submit) with ESMTP id jB1LWaYh065784 for ; Thu, 1 Dec 2005 22:32:36 +0100 (CET) (envelope-from wojtek@tensor.3miasto.net) X-Authentication-Warning: chylonia.3miasto.net: wojtek owned process doing -bs Date: Thu, 1 Dec 2005 22:32:36 +0100 (CET) From: Wojciech Puchar X-X-Sender: wojtek@chylonia.3miasto.net To: freebsd-questions@freebsd.org Message-ID: <20051201222800.P65445@chylonia.3miasto.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Subject: irq load when servicing ethernet X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Dec 2005 21:32:48 -0000 is it normal on AMD64 machine to have 10-15% CPU time spent in "interrupt" by sending file at 7MB/s by ftp to other machine? fxp0: port 0xec00-0xec3f mem 0xfbfff000-0xfbffffff,0xfbfc0000-0xfbfdfff f irq 17 at device 5.0 on pci2 nothing else uses irq 17 systat shows 3000 ints/s, with 1.8GHz CPU it's like 60000-90000 CPU clocks per single interrupt service. at least - TOO MUCH. with much higher traffic over hard drive interrupt percentage is below 1% if measurable at all.