From owner-freebsd-questions@freebsd.org Wed Sep 28 08:10:40 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7FAF6C00F53 for ; Wed, 28 Sep 2016 08:10:40 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: from mail-yw0-x236.google.com (mail-yw0-x236.google.com [IPv6:2607:f8b0:4002:c05::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 3BC3DDB2 for ; Wed, 28 Sep 2016 08:10:40 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: by mail-yw0-x236.google.com with SMTP id i129so23118203ywe.2 for ; Wed, 28 Sep 2016 01:10:40 -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; bh=9B6da8NDA0m5XGhu51ILdEvTiOSIwe7rk/EReWusdIA=; b=Y04+zSOlXIkyE/vMhUpikbOjzP19gCp+VcMBm5Bo98z1FqJcsn3uZf5FOEoW+W3Hm6 WwyCzyO1WySMHc3LqNww1jtVwH9V/oKFXsnZ67IHrA41s1qXiyiYHnj0TL00LoE4AevX yuW8ylEN10YeWixqnvlFh0EVcSfZakZDLiZqNvXF0J3f16MFZnTgdmaD3ydnQCvWDwgx 5HSU5lJDb2ifqufQ1Ul3pXQkOD8KrxHkG6/50BDLD6D9kuzbbU/RQd4Z3IvXO1oRZ7cr p6HI7s7z2NH6iWIdu+ldHWoKpalYBHpZ21RzpSsI3hiRYoxM+K2G9cgj2O4AxnKBIH6T 6WXA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=9B6da8NDA0m5XGhu51ILdEvTiOSIwe7rk/EReWusdIA=; b=BTPc+P7b21eGvvPoWR5mC5krOJrI2mjnQAbfTAt9nUTowNlhYbo1GQXmpg9vOVNC2X 5LB/m9hymbr4vVakyipgYXZ38jHbjH4nt4GXz/xieKQIu3vI7RRRCwv5u3xAkzBgiOHx RBBe+IjVUCmc4gEJDaP7eiUczVWAZIrKQqJdnJrFXf3r73xBuPJWwvwEXZ58kgsQcqLM aHFUqB8/rCznZ7SINBXckEJraC3ki1GnAzlx0loPjPIw+SU6pPgfjay0vbVUBAk9yeVe lfJ1j/G0zcgTuHRAENPbg80TDGzQPUlTjJICB2sQFKZPdUNa0PIENuZvt0O1nknv1ShP lZfA== X-Gm-Message-State: AA6/9RmigkoWkgXEGFKDfqtfpVHsdykGvpw8/35+ELR3ums6Zp4aHvfRli3VHZXBx3P4J7QyR/0dVdlMPu1VtQ== X-Received: by 10.129.122.136 with SMTP id v130mr4266677ywc.89.1475050239502; Wed, 28 Sep 2016 01:10:39 -0700 (PDT) MIME-Version: 1.0 Received: by 10.37.88.214 with HTTP; Wed, 28 Sep 2016 01:10:39 -0700 (PDT) In-Reply-To: <20160928092435.40d1da6f@moonstudio> References: <0D6BF663-5C95-4625-B412-00E14EF97986@FreeBSD.org> <35.AF.06698.BEF4AE75@dnvrco-oedge03> <20160927134158.74c11036@archlinux.localdomain> <20160928091109.7aa95c9d@moonstudio> <20160928092435.40d1da6f@moonstudio> From: Mehmet Erol Sanliturk Date: Wed, 28 Sep 2016 01:10:39 -0700 Message-ID: Subject: Re: i386 version in future ? To: Ralf Mardorf Cc: FreeBSD Questions Mailing List Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Sep 2016 08:10:40 -0000 On Wed, Sep 28, 2016 at 12:24 AM, Ralf Mardorf via freebsd-questions < freebsd-questions@freebsd.org> wrote: > On Wed, 28 Sep 2016 09:11:09 +0200, Ralf Mardorf wrote: > >On Tue, 27 Sep 2016 08:33:34 -0700, Mehmet Erol Sanliturk wrote: > >>- 64 bit CPU will consume more power than only 32 bit CPU . > > > >Hi, > > > >I seriously doubt that this is true. More likely a dual-core 64 bit > >does consume around half of what a 32 bit single core consumes. This at > >least is true for my old 32 bit Athlon and my currently used 64 bit > >dual core Athlon. Those 64 bit CPUs don't get nearly as hot as the old > >32 bit CPUs do. That the newer 64 bit CPUs provide frequency scaling > >OTOH doesn't make such a big difference regarding power consumption. > > > >Regards, > >Ralf > > Correction, regarding a list with Athlon CPUs the old 32 bit CPU seems > only to consume a few Watt more, than the new 64 bit dual-core. IOW the > power consumption more or less is equal, OTOH the 32-bit CPU needs much > more time to do the same, the newer 64 bit CPU could do. > _______________________________________________ > > Assume that 64 bit CPU performs only 64 bit requiring tasks , and assume that 32 bit CPU performs only 32 bit requiring tasks . My comparison is based on this assumption . There are a huge number of jobs that they only require 32 bit operations . For such jobs , it is not necessary to use 64 bit processors when there is a need to a large number of processors for such tasks collection . For a few jobs , these may not be important , but in a factory using processors in large numbers , total of such small number of watts may escalate to a large amount . This means unnecessary cost when a year of operation is considered . Thank you very much . Mehmet Erol Sanliturk