From owner-freebsd-arm@FreeBSD.ORG Thu May 23 16:00:42 2013 Return-Path: Delivered-To: freebsd-arm@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 E764A900 for ; Thu, 23 May 2013 16:00:42 +0000 (UTC) (envelope-from darshana.jayasinghe@gmail.com) Received: from mail-ie0-x22c.google.com (mail-ie0-x22c.google.com [IPv6:2607:f8b0:4001:c03::22c]) by mx1.freebsd.org (Postfix) with ESMTP id C1A0EDB0 for ; Thu, 23 May 2013 16:00:42 +0000 (UTC) Received: by mail-ie0-f172.google.com with SMTP id 16so9192433iea.17 for ; Thu, 23 May 2013 09:00:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to:content-type; bh=V63AUYKc+toOqGChRUdbXtnJ/AJE9JEJIMSDJTkKcyg=; b=bRXqo/GsUpOgztNcdTHB7CiRPvWWKs0+FrdoaOMJFTsjeyoIddhd3jW9Hhwg+HdYEy 3SQkfVDUuJRysRKD3lYJEMynfSEMjjA3DJXJNAyYpoNKi8P8zvi6v1Cp/Tf7UI5Gv+51 xIaDNTmrKt2/7NUYVKUhfYr+1qjfXvJ2s8iy7bVjlOhadxA4sZzYUSR29JfTC8bnt2wC ZDv897ddQWywjgj5vcQMBu4Sjg1qj2mZmvz+L9Uw1+OkzhK+eBEQHPFWqqsAPJ/ueTpd NZISOEsXF79wPixTC/nU5jcd/ral21ctURvB2GX51G9di6p/A4FSO5WCZ04rkcbxIlhy LS8g== X-Received: by 10.50.115.42 with SMTP id jl10mr5281363igb.71.1369324842537; Thu, 23 May 2013 09:00:42 -0700 (PDT) MIME-Version: 1.0 Received: by 10.64.107.195 with HTTP; Thu, 23 May 2013 09:00:02 -0700 (PDT) From: Darshana Jayasinghe Date: Fri, 24 May 2013 02:00:02 +1000 Message-ID: Subject: FreeBSD ARM on Raspberry pi slow UDP To: freebsd-arm@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 May 2013 16:00:43 -0000 Hi All, I installed the FreeBSD ARM image for Raspberry Pi because I wanted to check some cache attacks on Raspberry Pi. From my laptop I send UDP packets to my Raspberry Pi and on Raspberry Pi the data get processed and send the timing information back to my laptop. The problem is the data rate is very slow in FreeBSD where as I tried to do the same thing with Raspbian Wheezy the speed was ~900 KBps and the Raspberry Pi was at 100% CPU utilization. But with FreeBSD it the speed was ~50-70 KBps and the CPU utilization was under 10%. I tried to increase the packet size but no luck. Still the data transfer speed is ~50-70 KBps. Any suggestions to solve the issue please. --=20 Thanks, Darshana Jayasinghe (D=C4rshana)