From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Horman Subject: Re: random pkt generator PMD Date: Wed, 15 Jun 2016 09:02:32 -0400 Message-ID: <20160615130231.GB20120@hmsreliant.think-freely.org> References: <5761235C.2090906@sts.kz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: dev@dpdk.org To: Yerden Zhumabekov Return-path: Received: from smtp.tuxdriver.com (charlotte.tuxdriver.com [70.61.120.58]) by dpdk.org (Postfix) with ESMTP id 1318EC6D4 for ; Wed, 15 Jun 2016 15:02:38 +0200 (CEST) Content-Disposition: inline In-Reply-To: <5761235C.2090906@sts.kz> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Wed, Jun 15, 2016 at 03:43:56PM +0600, Yerden Zhumabekov wrote: > Hello everybody, > > DPDK already got a number of PMDs for various eth devices, it even has PMD > emulations for backends such as pcap, sw rings etc. > > I've been thinking about the idea of having PMD which would generate mbufs > on the fly in some randomized fashion. This would serve goals like, for > example: > > 1) running tests for applications with network processing capabilities > without additional software packet generators; > 2) making performance measurements with no hw inteference; > 3) ability to run without root privileges, --no-pci, --no-huge, for CI > build, so on. > > Maybe there's no such need, and these goals may be achieved by other means > and this idea is flawed? Any thoughts? > I think you already have a solution to this problem. Linux/BSD have multiple user space packet generators that can dump thier output to a pcap format file, and dpdk has a pcap pmd that accepts a pcap file as input to send in packets. Neil