From owner-freebsd-questions@FreeBSD.ORG Sun Apr 3 20:28:24 2005 Return-Path: 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 45DEB16A4CE for ; Sun, 3 Apr 2005 20:28:24 +0000 (GMT) Received: from smtp9.wanadoo.fr (smtp9.wanadoo.fr [193.252.22.22]) by mx1.FreeBSD.org (Postfix) with ESMTP id F3AD943D45 for ; Sun, 3 Apr 2005 20:28:23 +0000 (GMT) (envelope-from atkielski.anthony@wanadoo.fr) Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf0909.wanadoo.fr (SMTP Server) with ESMTP id A934824000C2 for ; Sun, 3 Apr 2005 22:28:22 +0200 (CEST) Received: from pix.atkielski.com (ASt-Lambert-111-2-1-3.w81-50.abo.wanadoo.fr [81.50.80.3]) by mwinf0909.wanadoo.fr (SMTP Server) with ESMTP id 917BC240013D for ; Sun, 3 Apr 2005 22:28:22 +0200 (CEST) X-ME-UUID: 20050403202822595.917BC240013D@mwinf0909.wanadoo.fr Date: Sun, 3 Apr 2005 22:28:19 +0200 From: Anthony Atkielski X-Priority: 3 (Normal) Message-ID: <998918420.20050403222819@wanadoo.fr> To: freebsd-questions@freebsd.org In-Reply-To: <20050403220525.39ac28dd.dick@nagual.st> References: <20050402173222.53977dd4.dick@nagual.st> <424F4FAD.7080300@ec.rr.com> <20050403220525.39ac28dd.dick@nagual.st> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: Re: device_polling X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: freebsd-questions@freebsd.org List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 03 Apr 2005 20:28:24 -0000 dick hoogendijk writes: > I build a kernel with devoce_polling and hz=1000 and experimented a bit. > Using "netstat -w 1" I see a drop in performance. In/output is about 20% > higher if polling is disabled. That was not what I expexted. I really > thought polling would be better. I use cheap rl (realtec 8139) cards. How fast is the processor on your system? -- Anthony