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Re: Raspberry Pi 1Tbyte hard drive kit

From Rob Morley <nospam@ntlworld.com>
Newsgroups comp.sys.raspberry-pi
Subject Re: Raspberry Pi 1Tbyte hard drive kit
Date 2015-09-12 15:28 +0100
Message-ID <20150912152846.7bad78fd@ntlworld.com> (permalink)
References (3 earlier) <msv2b1$o93$1@dont-email.me> <cCFIx.320763$GG3.8135@fx10.am4> <msvmkf$853$1@dont-email.me> <mt0947$irb$1@dont-email.me> <mt0vdp$hq3$1@dont-email.me>

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On Sat, 12 Sep 2015 11:41:45 +0100
"James Harris" <james.harris.1@gmail.com> wrote:

> I ask because I don't think a simple data transfer is enough. IME the 
> speed of a disk varies a lot between outer and inner cylinders. For 
> example,
> 
If you're testing sustained transfer do it across the whole platter (or
at least at the inside and outside). Multiple small or heavily
fragmented files will be more affected by seek time, and physical cache
may have a major effect on small transfers.  I suspect that the way the
OS behaves can also have an effect (in addition to its own caching
behaviour) but I've never noticed comparison tests that use multiple
OSs.

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Thread

Raspberry Pi 1Tbyte hard drive kit "James Harris" <james.harris.1@gmail.com> - 2015-09-10 22:56 +0100
  Re: Raspberry Pi 1Tbyte hard drive kit ray carter <ray@zianet.com> - 2015-09-10 22:24 +0000
    Re: Raspberry Pi 1Tbyte hard drive kit mrbrad <lostgonzo@gmail.com> - 2015-09-10 23:36 -0500
      Re: Raspberry Pi 1Tbyte hard drive kit mrbrad <lostgonzo@gmail.com> - 2015-09-19 23:23 -0500
        Re: Raspberry Pi 1Tbyte hard drive kit rickman <gnuarm@gmail.com> - 2015-09-20 00:42 -0400
          Re: Raspberry Pi 1Tbyte hard drive kit mrbrad <lostgonzo@gmail.com> - 2015-09-20 01:56 -0500
    Re: Raspberry Pi 1Tbyte hard drive kit mm0fmf <none@mailinator.com> - 2015-09-11 18:13 +0100
      Re: Raspberry Pi 1Tbyte hard drive kit "James Harris" <james.harris.1@gmail.com> - 2015-09-11 18:19 +0100
        Re: Raspberry Pi 1Tbyte hard drive kit mm0fmf <none@mailinator.com> - 2015-09-11 20:05 +0100
          Re: Raspberry Pi 1Tbyte hard drive kit rickman <gnuarm@gmail.com> - 2015-09-11 17:55 -0400
          Re: Raspberry Pi 1Tbyte hard drive kit "James Harris" <james.harris.1@gmail.com> - 2015-09-12 00:05 +0100
            Re: Raspberry Pi 1Tbyte hard drive kit David Taylor <david-taylor@blueyonder.co.uk.invalid> - 2015-09-12 05:21 +0100
              Re: Raspberry Pi 1Tbyte hard drive kit "James Harris" <james.harris.1@gmail.com> - 2015-09-12 11:41 +0100
                Re: Raspberry Pi 1Tbyte hard drive kit David Taylor <david-taylor@blueyonder.co.uk.invalid> - 2015-09-12 13:17 +0100
                Re: Raspberry Pi 1Tbyte hard drive kit Rob Morley <nospam@ntlworld.com> - 2015-09-12 15:28 +0100
            Re: Raspberry Pi 1Tbyte hard drive kit mm0fmf <none@mailinator.com> - 2015-09-12 08:22 +0100
              Re: Raspberry Pi 1Tbyte hard drive kit rickman <gnuarm@gmail.com> - 2015-09-12 03:30 -0400
            Re: Raspberry Pi 1Tbyte hard drive kit Mike Fleming <{mike}@tauzero.co.uk> - 2015-09-12 09:02 +0100
              Re: Raspberry Pi 1Tbyte hard drive kit mm0fmf <none@mailinator.com> - 2015-09-12 09:11 +0100
                Re: Raspberry Pi 1Tbyte hard drive kit rickman <gnuarm@gmail.com> - 2015-09-12 04:19 -0400
  Re: Raspberry Pi 1Tbyte hard drive kit David Taylor <david-taylor@blueyonder.co.uk.invalid> - 2015-09-11 07:21 +0100
    Re: Raspberry Pi 1Tbyte hard drive kit "James Harris" <james.harris.1@gmail.com> - 2015-09-16 18:59 +0100
      Re: Raspberry Pi 1Tbyte hard drive kit ray carter <ray@zianet.com> - 2015-09-16 19:23 +0000
  Re: Raspberry Pi 1Tbyte hard drive kit rickman <gnuarm@gmail.com> - 2015-09-11 13:30 -0400
    Re: Raspberry Pi 1Tbyte hard drive kit "James Harris" <james.harris.1@gmail.com> - 2015-09-16 19:02 +0100
      Re: Raspberry Pi 1Tbyte hard drive kit rickman <gnuarm@gmail.com> - 2015-09-16 14:23 -0400
        Re: Raspberry Pi 1Tbyte hard drive kit "James Harris" <james.harris.1@gmail.com> - 2015-09-16 19:42 +0100
          Re: Raspberry Pi 1Tbyte hard drive kit rickman <gnuarm@gmail.com> - 2015-09-16 15:37 -0400
            Re: Raspberry Pi 1Tbyte hard drive kit "James Harris" <james.harris.1@gmail.com> - 2015-09-16 20:54 +0100
              Re: Raspberry Pi 1Tbyte hard drive kit rickman <gnuarm@gmail.com> - 2015-09-16 16:41 -0400
          Re: Raspberry Pi 1Tbyte hard drive kit Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-16 19:42 +0000
            Re: Raspberry Pi 1Tbyte hard drive kit "James Harris" <james.harris.1@gmail.com> - 2015-09-16 21:06 +0100
              Re: Raspberry Pi 1Tbyte hard drive kit Martin Gregorie <martin@address-in-sig.invalid> - 2015-09-16 21:19 +0000

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