From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [PATCH] dropping librte_ivshmem Date: Mon, 20 Jun 2016 17:54:13 +0200 Message-ID: <5934694.YE8vpisYaa@xps13> References: <1465481396-23968-1-git-send-email-thomas.monjalon@6wind.com> <2195337.EI94ugUIUk@xps13> <57680F7B.5040104@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: Anatoly Burakov , David Marchand , dev@dpdk.org, sergio.gonzalez.monroy@intel.com, kevin.traynor@intel.com, pmatilai@redhat.com To: Ferruh Yigit Return-path: Received: from mail-wm0-f52.google.com (mail-wm0-f52.google.com [74.125.82.52]) by dpdk.org (Postfix) with ESMTP id 08751AA3B for ; Mon, 20 Jun 2016 17:54:15 +0200 (CEST) Received: by mail-wm0-f52.google.com with SMTP id f126so75169610wma.1 for ; Mon, 20 Jun 2016 08:54:15 -0700 (PDT) In-Reply-To: <57680F7B.5040104@intel.com> 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" 2016-06-20 16:44, Ferruh Yigit: > On 6/15/2016 7:34 PM, Thomas Monjalon wrote: > > 2016-06-15 19:16, Ferruh Yigit: > >> On 6/9/2016 10:26 PM, Thomas Monjalon wrote: > >>> So this is my proposal: > >>> Someone start working on the above cleanup now, otherwise the whole > >>> rte_ivshmem feature will be deprecated in 16.07 and removed in 16.11. > >> > >> I would like to note that at least SPP (soft patch panel) is using > >> rte_ivshmem feature. > > > > Why? > > Can SPP work without ivshmem? > > > > Can do, it supports both ivshmem and vhost. > But ivshmem gives clearly more performance for VM to VM communication. But SPP is not about performance? My understanding is that it supports what DPDK supports. And the question here is not about the benefit of QEMU ivshmem but the current design of DPDK object sharing via ivshmem (librte_ivshmem).