From owner-freebsd-hackers@FreeBSD.ORG Fri May 24 19:44:41 2013 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 95928C7D for ; Fri, 24 May 2013 19:44:41 +0000 (UTC) (envelope-from waksmundzki@gmail.com) Received: from mail-ie0-x233.google.com (mail-ie0-x233.google.com [IPv6:2607:f8b0:4001:c03::233]) by mx1.freebsd.org (Postfix) with ESMTP id 68C4AD10 for ; Fri, 24 May 2013 19:44:41 +0000 (UTC) Received: by mail-ie0-f179.google.com with SMTP id c13so13583549ieb.10 for ; Fri, 24 May 2013 12:44:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=content-type:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to:x-mailer; bh=kbJz3puLTUZ9e4H9kQYDFMdNCiBw7vqg4dHiusyWW4Y=; b=Am8K+XrdRbnqV0Wob8Oy48KGWy0SMaDni/wngEf25aIe7wp52F9iSpyIDeGteNyQVu QnE6a4oH+JtCEmhKhot8QxxMwnsLZp0fSktVXZAVyRUqs43zpPlU4tLqD9rYWpgSDW4i NZDz4ao/p+drDqNI6X3HbrUG30sTaaC9nA1fd/zsq99mSIj2siFkpMbphXWAjAG1bHZA pCsyOHG/yLG9BDvOLhL9cR/oJAtNJgzakKriE8rdj0ykA5Tj7znJJ53e3DgvtOcA+IgH Xv6E2UzyV9sw2YsLLO1+FeqqCvENFKyGo3bEArZy39v3Y0/N8O68qwL5x8+d7oz97pac hpqw== X-Received: by 10.50.82.98 with SMTP id h2mr398616igy.33.1369424681143; Fri, 24 May 2013 12:44:41 -0700 (PDT) Received: from [192.168.1.107] (c-98-253-129-150.hsd1.il.comcast.net. [98.253.129.150]) by mx.google.com with ESMTPSA id ji5sm5143690igb.0.2013.05.24.12.44.39 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 24 May 2013 12:44:40 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 6.3 \(1503\)) Subject: Re: Low Tx-Rx performance with 10Gb NICs From: Robert Waksmundzki In-Reply-To: <1369406798.20748.30.camel@EL-DT095.site> Date: Fri, 24 May 2013 14:44:37 -0500 Content-Transfer-Encoding: quoted-printable Message-Id: References: <175CCF5F49938B4D99B2E3EF7F558EBE381FA6E5AA@SC-VEXCH4.marvell.com> <1369406798.20748.30.camel@EL-DT095.site> To: Axel Fischer X-Mailer: Apple Mail (2.1503) Cc: Hackers freeBSD X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 May 2013 19:44:41 -0000 Hello Axel Have you done any sysctl.conf tuning? Perhaps simply you don't have = enough buffers. "netstat -m" will check for mbufs and "vmstat -z" will check for reached = kernel limits.=