From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f178.google.com (mail-pf0-f178.google.com [209.85.192.178]) by dpdk.org (Postfix) with ESMTP id C01C41B19D for ; Fri, 29 Sep 2017 23:30:56 +0200 (CEST) Received: by mail-pf0-f178.google.com with SMTP id n24so417797pfk.5 for ; Fri, 29 Sep 2017 14:30:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=qLhVMocAs45YYpbiLKIeziC4Zlpna6yyQoRgwGCDvb0=; b=tR3aFdfpehhePZOaJOJJWyW9sSvBDM8zWyhdda9ZZtmFgJm+gtKjfzrETIr4UxisYT Gm9CG+7eXRzJmnKpceQs/Cin4CyVIzKE5YhW/LygdMAUh0YJ4raKI5OF+vnEHaYyb3Nt daMLR+7w88d6Y5k/LLjGOmCfUQiLN7zGeELrjg+2BCZyj8sFpMfoLXifKO9KooqKHrlx NEJs3LqZydK2Lrr9kZrmuLFrL/oZWmvprD9z1ZV0//89Bh2ZYlf+RGHKatvRIANCapb3 EElMBS+Gp/+toSPtEJmR3gfx2qifvLbveoLni70oeIxvjqOq7eDwX4TssZLrHuZ34miG RRvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=qLhVMocAs45YYpbiLKIeziC4Zlpna6yyQoRgwGCDvb0=; b=L9hbvLg5enkYugHTGUOIvU21KyiYAfMLdrGUsvTt9BWKtHIBSnZkE1mzRlS2jFJF1Q RYA8CtjJlW/bKH1DoK6xtTWUW4ByOFahvu3WZI/d7FVpi4bL9sKQiqtFlB3xInIKdXCK 0jLzQm5CiaHBMNoUu73wbQyZRKQ5BCcPLqxrp4BonZMuu3GrSqC73HabTNZOKtodH3pt 3tyTrGdU0jZ0CqCDkoGfuBWX/R4GKb6uW91DeDiNrcWt0alx/9Hs53tcE/em91eraVQF 4xRTwfK5MOrQb/NwdoEjISWv2eCKd9Xyh6vMecxDPSHaYssgcF7WQblM8EE+F+iPHcnt BlZA== X-Gm-Message-State: AHPjjUiA4JpWIu0lpi4rLlCRCYdtfivqlkbNEH58nISwFua5ljVCNVgB RSVwFOKv5OsmAd7PzTnLdVNtrg== X-Google-Smtp-Source: AOwi7QDnzactLps9H3z5zMRJDV0vdGAFUFCZtZ+bwRV7tk32hXJP5wwjyECCG3ZT7LIrKvvsJhACxw== X-Received: by 10.98.217.220 with SMTP id b89mr8775373pfl.144.1506720654770; Fri, 29 Sep 2017 14:30:54 -0700 (PDT) Received: from xeon-e3 (76-14-207-240.or.wavecable.com. [76.14.207.240]) by smtp.gmail.com with ESMTPSA id w10sm4735674pfg.40.2017.09.29.14.30.54 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 29 Sep 2017 14:30:54 -0700 (PDT) Date: Fri, 29 Sep 2017 14:30:47 -0700 From: Stephen Hemminger To: Mauricio Valdueza Cc: "Wiles, Keith" , Andrew Theurer , "users@dpdk.org" Message-ID: <20170929143047.65edac77@xeon-e3> In-Reply-To: <058CF6F5-F30E-41FA-AAE0-6EEA4BAE315D@vmware.com> References: <6613CB6E-EBE2-40AD-9A5C-AA67C1C833D0@intel.com> <058CF6F5-F30E-41FA-AAE0-6EEA4BAE315D@vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [dpdk-users] Any way to get more that 40Mpps with 64bytes using a XL710 40Gb nic X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Sep 2017 21:30:57 -0000 On Fri, 29 Sep 2017 20:53:10 +0000 Mauricio Valdueza wrote: > Hi Guys >=20 > Max theoretical value is 56.8 Mpps=E2=80=A6 but practical PCie limitation= s allow us to reach 42Mpps >=20 > I am reaching 36Mpps, so where are the 6Mpps lost ( ? >=20 Firmware? PCI x16? PCI also has per-transaction overhead?