From owner-freebsd-questions@FreeBSD.ORG Tue Jun 9 09:46:40 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 064FD106564A for ; Tue, 9 Jun 2009 09:46:40 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl [IPv6:2001:4070:101:2::1]) by mx1.freebsd.org (Postfix) with ESMTP id EE5478FC0C for ; Tue, 9 Jun 2009 09:46:38 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (localhost [IPv6:::1]) by wojtek.tensor.gdynia.pl (8.14.3/8.14.3) with ESMTP id n599kWn0005551; Tue, 9 Jun 2009 11:46:32 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from localhost (wojtek@localhost) by wojtek.tensor.gdynia.pl (8.14.3/8.14.3/Submit) with ESMTP id n599kV6M005548; Tue, 9 Jun 2009 11:46:32 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Date: Tue, 9 Jun 2009 11:46:31 +0200 (CEST) From: Wojciech Puchar To: Martin Badie In-Reply-To: <112251.94335.qm@web59904.mail.ac4.yahoo.com> Message-ID: References: <112251.94335.qm@web59904.mail.ac4.yahoo.com> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-questions@freebsd.org Subject: Re: emX (intel) interface ring parameters 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: Tue, 09 Jun 2009 09:46:40 -0000 man em hw.em.rxd Number of receive descriptors allocated by the driver. The default value is 256. The 82542 and 82543-based adapters can handle up to 256 descriptors, while others can have up to 4096. hw.em.txd Number of transmit descriptors allocated by the driver. The default value is 256. The 82542 and 82543-based adapters can handle up to 256 descriptors, while others can have up to 4096. and other things. BTW i'm getting excellent performance from such card (PCIe, 1000Mbps/s) with minimal CPU load On Tue, 9 Jun 2009, Martin Badie wrote: > Hi, > > On linux I can change ring parameters like: > > /sbin/ethtool -G eth1 rx 4096 > > -G --set-ring > change the rx/tx ring parameters of the specified ethernet device. > > how can I do that in FreeBSD so I can get a better performance from my interface > > Regards. > > > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > >