From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Subject: Re: [PATCH] dummy: improve performance Date: Wed, 25 May 2005 15:11:49 -0700 (PDT) Message-ID: <20050525.151149.08323692.davem@davemloft.net> References: Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@oss.sgi.com Return-path: To: util@deuroconsult.ro In-Reply-To: Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org From: "Catalin(ux aka Dino) BOIE" Date: Fri, 20 May 2005 13:11:24 +0300 (EEST) > I tested the speed and seems very low (both old version and the new one). > Something like 37Mbits/s. It is normal? > I can easily get 80Mbit/s on the same machine on ethernet. How are you receiving packets on the dummy device for performance testing? This device is a transmit blackhole and receives no packets :-) I really don't see a real need for your patch, dummy device performance cannot be claimed to be important at all.