From owner-freebsd-arm@FreeBSD.ORG Sun Sep 8 20:56:47 2013 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 9694EFF4 for ; Sun, 8 Sep 2013 20:56:47 +0000 (UTC) (envelope-from jiashiun@gmail.com) Received: from mail-oa0-x230.google.com (mail-oa0-x230.google.com [IPv6:2607:f8b0:4003:c02::230]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 61CB220E1 for ; Sun, 8 Sep 2013 20:56:47 +0000 (UTC) Received: by mail-oa0-f48.google.com with SMTP id o17so5811227oag.35 for ; Sun, 08 Sep 2013 13:56:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=8m9YykzOu9FZvhU6QQIot6n2qvJkavb9uKmdvGH+hR4=; b=mOT3QwWpbk8SE6ZFaftxeddSz3GGVnCrJ/cU3vsn0dYH1txSdnOG4r1FDH84C+nTHc kf7Lxul/6M+Xm0xXTt9O2ODZ4PA+leiTXl0q4u5tJET8fMbmRZLbraoe3nGvCOj7S8Rr KC7Ua4lXUkSXnRNPvzBlToU71XQZcgHQKSQufHMhRNQfIeMqsxag0Qs7qyxtSEXzL1KB ryjzzdIItL8o4EWjQibCELRlG8UUS726UktON3dKyBpIrhLivKjqoIExvc+kU4gmDaWf +udG43v7Z4PKaPSGoMy3vBbRSm0Ge5hgTrV970LIwXX/benQX4BaHeh324NOWP9oufDw WUXQ== X-Received: by 10.60.95.229 with SMTP id dn5mr9204939oeb.26.1378673805838; Sun, 08 Sep 2013 13:56:45 -0700 (PDT) MIME-Version: 1.0 Received: by 10.76.131.111 with HTTP; Sun, 8 Sep 2013 13:56:14 -0700 (PDT) In-Reply-To: References: From: Jia-Shiun Li Date: Mon, 9 Sep 2013 04:56:14 +0800 Message-ID: Subject: Re: stream benchmarking on RPi To: Zbigniew Bodek Content-Type: text/plain; charset=UTF-8 Cc: "freebsd-arm@freebsd.org" 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: Sun, 08 Sep 2013 20:56:47 -0000 On Sun, Sep 8, 2013 at 4:11 AM, Zbigniew Bodek wrote: > 2013/9/6 Jia-Shiun Li > Hello Jia-Shiun. > > I was looking for similar benchmark that will not depend on floating point > and I found this: > http://alasir.com/software/ramspeed/ > > The idea seems to be the same as the stream benchmark but you have option to > not use FP. > I've actually made some tests on my ARM and here are the results (default > benchmark settings): So for now it is still not suitable for fp-intensive work. Fortunately I guess most people won't do that on RPi. Still, thank you all for the info and your hard work on ARM. FYR ramspeed result on RPi. No clang results because it is clever enough to optimize all works away even with -O. ;) jsli@raspberry-pi:~/ramspeed-2.6.0 % time ./ramspeed -b 3 -g 1 RAMspeed (GENERIC) v2.6.0 by Rhett M. Hollander and Paul V. Bolotoff, 2002-09 1Gb per pass mode INTEGER Copy: 190.51 MB/s INTEGER Scale: 185.59 MB/s INTEGER Add: 163.58 MB/s INTEGER Triad: 162.43 MB/s --- INTEGER AVERAGE: 175.53 MB/s 61.889u 4.631s 1:09.55 95.6% 25+167k 0+0io 0pf+0w jsli@raspberry-pi:~/ramspeed-2.6.0 % time ./ramspeed -b 6 -g 1 RAMspeed (GENERIC) v2.6.0 by Rhett M. Hollander and Paul V. Bolotoff, 2002-09 1Gb per pass mode FL-POINT Copy: 222.57 MB/s FL-POINT Scale: 28.49 MB/s FL-POINT Add: 65.74 MB/s FL-POINT Triad: 16.43 MB/s --- FL-POINT AVERAGE: 83.31 MB/s 317.004u 4.545s 5:36.72 95.4% 25+166k 0+0io 0pf+0w Jia-Shiun.