From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ILCAS1.corp.radware.com (mailout1.radware.com [192.115.180.130]) by dpdk.org (Postfix) with ESMTP id 5D2428B23 for ; Sun, 12 Oct 2014 14:30:04 +0200 (CEST) Received: from ILMB1.corp.radware.com ([fe80::78a5:d515:e805:d2a9]) by ILCAS1.corp.radware.com ([fe80::e4d0:d253:4b57:52ae%10]) with mapi id 14.03.0195.001; Sun, 12 Oct 2014 15:37:38 +0300 From: Yan Freedland To: "dev@dpdk.org" Thread-Topic: DPDK - VIRTIO performance problems Thread-Index: Ac/mF9x0VsTVAtJFQYyNjYdyT+DFSg== Date: Sun, 12 Oct 2014 12:37:37 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [176.200.121.206] MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-dev] DPDK - VIRTIO performance problems X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Oct 2014 12:30:04 -0000 Hi I am checking performance DPDK VIRTIO mode running on KVM (Linux ubuntu 3.1= 1.0-15-generic). The maximum throughput I reached was 4Gbps and then I saw an interesting ph= enomena. Every ~2min traffic stopped completely and then immediately came back. This= happened in a periodic fashion. I have never seen such thing in a pass-through mode, where I reached very m= uch higher rates of course. Can you please help in resolving this problem in VIRTIO ? Thank you Yan