From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oa0-x22f.google.com (mail-oa0-x22f.google.com [IPv6:2607:f8b0:4003:c02::22f]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id C722021F357; Fri, 27 Jun 2014 21:28:56 -0700 (PDT) Received: by mail-oa0-f47.google.com with SMTP id n16so6575864oag.6 for ; Fri, 27 Jun 2014 21:28:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=2nIsFo5qUnma+jNmvpgJCAgkc1ULadhSFN+cMFuzchc=; b=TiSB3CCT6iUKpnNHxuaPwXz4IihSGpy6UnhH/vP1VrJFUomoICPE8LTg92q3Os+ELK FFH6JKOKIM+9DW2kRiOL5aSfGBRx7TUxzXcUJZ0jiS0rceygB00g5rGqS9a93wwKS4fZ hdUjPY/WjE4uSXHdHAMM7a/5pwkHHFCmzUccAkLiqOjcySgRmS6StsigpvflxWAhFID8 bVqGNWULiuQfOS1SE46z4EfOzNBo6veL23r0YVaP5oKLjY1leQyHDGNW3cDK/XzgRMZj 1SPfb1mOI14j2eNn5gyS2WTGefdsGG0Z+/xHWPKe1sSyb2xgdL3NEVimhDhfl3Kd54tV NUfw== MIME-Version: 1.0 X-Received: by 10.182.44.233 with SMTP id h9mr28037440obm.68.1403929735812; Fri, 27 Jun 2014 21:28:55 -0700 (PDT) Received: by 10.202.48.200 with HTTP; Fri, 27 Jun 2014 21:28:55 -0700 (PDT) In-Reply-To: <8aeaf238-4612-410e-8d07-38159873ea17@reed.com> References: <53A9D92B.7010603@hp.com> <16169.1403645906@sandelman.ca> <8aeaf238-4612-410e-8d07-38159873ea17@reed.com> Date: Fri, 27 Jun 2014 21:28:55 -0700 Message-ID: From: Dave Taht To: "David P. Reed" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: cerowrt-devel , bloat Subject: Re: [Cerowrt-devel] =?utf-8?q?=5BBloat=5D__Dave_T=C3=A4ht_quoted_in_t?= =?utf-8?q?he_ACLU_blog?= X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Jun 2014 04:28:57 -0000 On Fri, Jun 27, 2014 at 9:06 PM, David P. Reed wrote: > Maybe I am misunderstanding something... it just took my Mac book Pro doi= ng > an rsync to copy a TB of data from a small NAS at work yesterday to get > about 700 Gb/sec on a GigE office network for hours yesterday. > > I had to do that in our Santana Clara office rather than from home outsid= e > Boston, which is where I work 90% of the time. > > That's one little computer and one user... On a daily basis, the bufferbloat websites transfer far, far less than gigE IF the redmine portion of the site wasn't so cpu expensive, I could use something other than hefty boxes they are on. Similarly snapon's cpu is mostly used for builds, the file transfer role could be done by something else easily. I'd like to switch it over to do that one day. > What does my Mac Book Pro draw doing that? 80 Watts? I love the "kill-a-watt" products. I use them everywhere. (while I'm pimping stuff I like, digilogger's power switches are a lifesaver also - staging boots for devices that draw a lot of power in a tiny lab that can only draw 350 watts before becoming a fire hazard) Your NAS probably ate less than 16 watts, more if you have more than one dr= ive. My nucs draw 18 watts and can transfer at GigE off a flash disk without raising a sweat. (at least some of your overhead is in the rsync protocol, which is overly chatty) Several tiny arm boards can all do gigE at line rate, notably stuff built a= round marvell and cavium's chipset(s), and they do it at under 2 watts. Most supp= ort 64GB mini-sd cards (with pretty lousy transfer rates). Pretty sure (haven't booted it yet) the parallella (which is smaller than a drive), can do it in under a 2 watt, and if it doesn't do gigE now, it'll do it after I get through with it - but it lacks a sata port, and usb is only 2.0, so it might not drive gigE from a nas perspective. (It kind of bugs me that most of the tiny boards ar= e in the altoids form factor, rather than the 2.5 inch drive form factor) So I go back to my original point in that, once you have fiber to the busin= ess, for most purposes in a small business or startup or home - who needs to co-lo in a data center? You can have a tiny wart on the wall do most of the job. And that's today. In another year or so we'll be over some more tipping points. One thing that does bug me is most UPSes are optimized to deliver a large load over a short time, a UPS capable of driving 5 watts for, say, 3 days i= s kind of rare. > On Jun 27, 2014, David Lang wrote: >> >> On Tue, 24 Jun 2014, Michael Richardson wrote: >> >>> Rick Jones wrote: >>>> >>>> Perhaps, but where does having gigabit fibre to a business imply the >>>> business >>>> has the space, power, and cooling to host all the servers it might >>>> need/wish >>>> to have? >>> >>> >>> That's a secondary decision. >>> Given roof space, solar panels and/or snow-outside, maybe the answer is >>> that >>> I regularly have 2 our of 3 of those available in a decentralized way. >> >> >> given the amount of processing capacity that you can get today in a >> pasively >> cooled system, you can do quite a b it of serving from a small amount of >> space >> and power. >> >> The days when it took rooms of Sun boxes to saturate a Gb line are long >> gone, >> you can do that with just a handful of machines. >> >> David Lang >> ________________________________ >> >> Cerowrt-devel mailing list >> Cerowrt-devel@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/cerowrt-devel > > > -- Sent from my Android device with K-@ Mail. Please excuse my brevity. > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat > --=20 Dave T=C3=A4ht NSFW: https://w2.eff.org/Censorship/Internet_censorship_bills/russell_0296_= indecent.article