Re: How long should a dd take

From	Jean-David Beyer <jeandavid8@verizon.net>
Newsgroups	comp.os.linux.misc
Subject	Re: How long should a dd take
Date	2020-03-24 22:06 -0400
Organization	NewsGuy.com
Message-ID	<r5eeav01uvg@news1.newsguy.com> (permalink)
References	<r5crp4$mn1$1@dont-email.me> <m7ydna-qVbLelOfDnZ2dnUU7-LXNnZ2d@giganews.com> <j58qkg-a6h.ln1@Telcontar.valinor> <r5dsth01ghk@news3.newsguy.com> <vnkqkg-upo.ln1@Telcontar.valinor>

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On 3/24/20 8:20 PM, Carlos E.R. wrote:
> True. But the computer is multitasking, so it might also be
> reading/writing on other areas of the disk, so perhaps the disk hardware
> buffer is not that relevant.
> 
> It is a simple test, just speed test a copy of a 20 mb file with the
> default buffer and several sizes of it (and flush between each test)

You can flush the Linux buffers and cache, but I very much doubt that
affects the hardware buffer(s) in the hard drive(s).

-- 
  .~.  Jean-David Beyer
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 /( )\ Shrewsbury, New Jersey
 ^^-^^ 22:05:02 up 12 days, 1:34, 2 users, load average: 4.34, 4.58, 4.63

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How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-24 11:43 +0000
  Re: How long should a dd take "Carlos E.R." <robin_listas@es.invalid> - 2020-03-24 13:13 +0100
    Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-24 16:37 +0000
      Re: How long should a dd take Robert Heller <heller@deepsoft.com> - 2020-03-24 12:25 -0500
        Re: How long should a dd take Eli the Bearded <*@eli.users.panix.com> - 2020-03-24 18:12 +0000
        Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-25 04:05 +0000
          Re: How long should a dd take "Carlos E.R." <robin_listas@es.invalid> - 2020-03-25 21:25 +0100
            Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-26 12:25 +0000
              Re: How long should a dd take "Carlos E.R." <robin_listas@es.invalid> - 2020-03-26 13:52 +0100
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-26 15:43 +0000
                Re: How long should a dd take Rich <rich@example.invalid> - 2020-03-26 15:55 +0000
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-26 18:36 +0000
                Re: How long should a dd take Rich <rich@example.invalid> - 2020-03-26 18:53 +0000
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-27 08:09 +0000
                Re: How long should a dd take Rich <rich@example.invalid> - 2020-03-27 10:00 +0000
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-27 10:15 +0000
                Re: How long should a dd take Rich <rich@example.invalid> - 2020-03-27 15:58 +0000
                Re: How long should a dd take Jean-David Beyer <jeandavid8@verizon.net> - 2020-03-27 13:43 -0400
                Re: How long should a dd take Roger Blake <rogblake@iname.invalid> - 2020-03-27 22:45 +0000
                Re: How long should a dd take ant@zimage.comANT (Ant) - 2020-03-28 17:00 -0500
                Re: How long should a dd take "Carlos E.R." <robin_listas@es.invalid> - 2020-03-27 14:11 +0100
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-27 13:49 +0000
                Re: How long should a dd take Rich <rich@example.invalid> - 2020-03-27 17:44 +0000
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-27 18:31 +0000
                Re: How long should a dd take Rich <rich@example.invalid> - 2020-03-27 19:58 +0000
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-27 20:14 +0000
                Re: How long should a dd take Robert Heller <heller@deepsoft.com> - 2020-03-27 15:13 -0500
                Re: How long should a dd take "Carlos E.R." <robin_listas@es.invalid> - 2020-03-27 21:47 +0100
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-28 05:30 +0000
                Re: How long should a dd take Robert Heller <heller@deepsoft.com> - 2020-03-28 07:33 -0500
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-28 13:41 +0000
                Re: How long should a dd take Robert Heller <heller@deepsoft.com> - 2020-03-28 09:47 -0500
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-28 17:48 +0000
                Re: How long should a dd take Robert Heller <heller@deepsoft.com> - 2020-03-28 14:27 -0500
                Re: How long should a dd take "Carlos E.R." <robin_listas@es.invalid> - 2020-03-28 22:22 +0100
                Re: How long should a dd take The Natural Philosopher <tnp@invalid.invalid> - 2020-03-29 06:41 +0100
                Re: How long should a dd take Jean-David Beyer <jeandavid8@verizon.net> - 2020-03-27 17:02 -0400
                Re: How long should a dd take Rich <rich@example.invalid> - 2020-03-27 21:12 +0000
                Re: How long should a dd take Robert Heller <heller@deepsoft.com> - 2020-03-27 20:35 -0500
                Re: How long should a dd take Jean-David Beyer <jeandavid8@verizon.net> - 2020-03-27 21:35 -0400
                Re: How long should a dd take Robert Heller <heller@deepsoft.com> - 2020-03-27 20:35 -0500
                Re: How long should a dd take "Carlos E.R." <robin_listas@es.invalid> - 2020-03-26 22:03 +0100
                Re: How long should a dd take "Anonymous Remailer (austria)" <mixmaster@remailer.privacy.at> - 2020-03-27 16:01 +0100
      Re: How long should a dd take Roger Blake <rogblake@iname.invalid> - 2020-03-24 19:59 +0000
  Re: How long should a dd take Marc Haber <mh+usenetspam1118@zugschl.us> - 2020-03-24 13:22 +0100
  Re: How long should a dd take Robert Heller <heller@deepsoft.com> - 2020-03-24 08:21 -0500
    Re: How long should a dd take Jean-David Beyer <jeandavid8@verizon.net> - 2020-03-24 14:22 -0400
    Re: How long should a dd take "Carlos E.R." <robin_listas@es.invalid> - 2020-03-24 21:46 +0100
      Re: How long should a dd take Jean-David Beyer <jeandavid8@verizon.net> - 2020-03-24 17:09 -0400
        Re: How long should a dd take "Carlos E.R." <robin_listas@es.invalid> - 2020-03-25 01:20 +0100
          Re: How long should a dd take Jean-David Beyer <jeandavid8@verizon.net> - 2020-03-24 22:06 -0400
      Re: How long should a dd take Robert Heller <heller@deepsoft.com> - 2020-03-24 16:38 -0500

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