From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <3chas3@gmail.com>
Received: from mail-qg0-f51.google.com (mail-qg0-f51.google.com
 [209.85.192.51]) by dpdk.org (Postfix) with ESMTP id A7214E72
 for <dev@dpdk.org>; Sun, 27 Dec 2015 22:17:41 +0100 (CET)
Received: by mail-qg0-f51.google.com with SMTP id 6so59101559qgy.1
 for <dev@dpdk.org>; Sun, 27 Dec 2015 13:17:41 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=message-id:subject:from:to:date:in-reply-to:references:content-type
 :mime-version:content-transfer-encoding;
 bh=cIPy3JL8dCHy13BQDKdtyKhLp397elLXTfkv6htcB04=;
 b=y01e23H+NFb2FOnkWc+Hbk2tHDsTz15x55C7LdfY+8Khjw/4wWRPf8K+IgO+BF9Zt4
 1vyY9tmWIX297dwkHOp8zLo6+y2Ew/6UJkxKNa3O/OBNwnPwvau7+IXraFCNLOGwS1YY
 wOIFaWaTJDvkxbNFjjXfuNnSMpQk5a96J/BTQEG+IQHZ26rj1A68WN3Hhwm24ytHEsjz
 ru5SnBZ0Wn9Xc0vAfIGDYAU2v4Kj2W5QEPCFdY8Ieu47GNvk8CkriIAIXWGv9AsRTuyI
 v1Px9rOJvW5Jp/gPsNtlWyalzAJFxaR7eWU21EauTF5syuT48L7vHIGkzpMdgtS+fEOQ
 waqg==
X-Received: by 10.140.98.239 with SMTP id o102mr68493558qge.31.1451251061225; 
 Sun, 27 Dec 2015 13:17:41 -0800 (PST)
Received: from monolith.home (pool-173-66-34-64.washdc.fios.verizon.net.
 [173.66.34.64])
 by smtp.googlemail.com with ESMTPSA id t107sm26117146qgd.0.2015.12.27.13.17.40
 (version=TLSv1/SSLv3 cipher=OTHER);
 Sun, 27 Dec 2015 13:17:40 -0800 (PST)
Message-ID: <1451251056.1893.4.camel@gmail.com>
From: Chas Williams <3chas3@gmail.com>
To: Alexander Belyakov <abelyako@gmail.com>, "dev@dpdk.org" <dev@dpdk.org>
Date: Sun, 27 Dec 2015 16:17:36 -0500
In-Reply-To: <CAAQJX_RxD_ifaw8e5H3bw6k6GxmPLhOsiFiTneMFer7LrsHv9g@mail.gmail.com>
References: <CAAQJX_RxD_ifaw8e5H3bw6k6GxmPLhOsiFiTneMFer7LrsHv9g@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
X-Mailer: Evolution 3.18.3 (3.18.3-1.fc23) 
Mime-Version: 1.0
Content-Transfer-Encoding: 8bit
Subject: Re: [dpdk-dev] bnx2x pmd performance expectations
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Sun, 27 Dec 2015 21:17:42 -0000

I wouldn't consider myself an expert on this driver but while looking
at some other things, I have noted that RTE_PMD_BNX2X_TX_MAX_BURST is
defined to be 1.  This bursts single packets to bnx2x_tx_encap() but it
looks like bnx2x_tx_encap() is far more capable than that.

On Tue, 2015-12-22 at 14:52 +0300, Alexander Belyakov wrote:
> Hi,
> 
> just tried to forward a lot of tiny packets with testpmd (dpdk-2.2.0)
> running on Broadcom Corporation NetXtreme II BCM57810S 10 Gigabit
> Ethernet
> (rev 10) adapter. I see forwarding performance of 2.6Mpps instead of
> expected 14.8Mpps. What should be done to achieve better results?
> 
> Thank you,
> Alexander Belyakov