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Re: Speed Problem Copying Files

From Michael Stone <mstone@debian.org>
Newsgroups linux.debian.user
Subject Re: Speed Problem Copying Files
Date 2019-05-14 13:40 +0200
Message-ID <xXDWO-7Sw-1@gated-at.bofh.it> (permalink)
References (1 earlier) <xW6zT-7v1-1@gated-at.bofh.it> <xW9xL-M5-3@gated-at.bofh.it> <xXeF3-yg-7@gated-at.bofh.it> <xXeYp-F8-1@gated-at.bofh.it> <xXeYp-F8-3@gated-at.bofh.it>
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On Mon, May 13, 2019 at 10:58:45AM +0200, Lothar Schilling wrote:
>Am 13.05.2019 um 10:51 schrieb Tixy:
>> On Mon, 2019-05-13 at 10:30 +0200, Lothar Schilling wrote:
>> [...]
>>> # uname -a
>>> Linux [my.server.com] 4.9.0-9-686-pae #1 SMP Debian 4.9.168-1
>>> (2019-04-12) i686 GNU/Linux
>> So you're running a 32-bit system, not 64-bit. Is that because you're
>> running on very old hardware or a decision for some other reason?
>>
>Neither old hardware nor deliberate decision - just plain stupid. But
>would it really matter?

It can--when using that much RAM on a 32 bit kernel you need to use PAE, 
which adds significant overhead for certain operations vs a 64 bit 
kernel--especially if it's old enough that meltdown mitigations 
significantly impact context switching performance. "Intel Xeon CPU 
2.40GHz with 4 cores" applies to chips a decade old by now; what 
is the actual CPU model?

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Thread

Speed Problem Copying Files Lothar Schilling <ls@proasyl.de> - 2019-05-09 11:00 +0200
  Re: Speed Problem Copying Files Jonas Smedegaard <jonas@jones.dk> - 2019-05-09 11:20 +0200
    Re: Speed Problem Copying Files Lothar Schilling <ls@proasyl.de> - 2019-05-09 11:50 +0200
      Re: Speed Problem Copying Files Kevin DAGNEAUX <kevin.dagneaux@fiitelcom.fr> - 2019-05-09 12:00 +0200
        Re: Speed Problem Copying Files Lothar Schilling <ls@proasyl.de> - 2019-05-09 12:30 +0200
          Re: Speed Problem Copying Files Martin <keine-eile@online.de> - 2019-05-09 13:30 +0200
            Re: Speed Problem Copying Files Lothar Schilling <ls@proasyl.de> - 2019-05-09 14:50 +0200
              Re: Speed Problem Copying Files Martin <keine-eile@online.de> - 2019-05-09 16:00 +0200
              Re: Speed Problem Copying Files "Thomas Schmitt" <scdbackup@gmx.net> - 2019-05-09 17:20 +0200
      Re: Speed Problem Copying Files Jonas Smedegaard <jonas@jones.dk> - 2019-05-09 12:30 +0200
        Re: Speed Problem Copying Files Jonas Smedegaard <jonas@jones.dk> - 2019-05-09 13:00 +0200
          Re: Speed Problem Copying Files Lothar Schilling <ls@proasyl.de> - 2019-05-09 13:20 +0200
            Re: Speed Problem Copying Files Keith Christian <keith1christian@gmail.com> - 2019-05-09 13:30 +0200
              Re: Speed Problem Copying Files Lothar Schilling <ls@proasyl.de> - 2019-05-09 14:50 +0200
  Re: Speed Problem Copying Files Gene Heskett <gheskett@shentel.net> - 2019-05-09 16:20 +0200
    Re: Speed Problem Copying Files "Jeremy Nicoll" <jn.ml.dbn.25@letterboxes.org> - 2019-05-09 16:30 +0200
      Re: Speed Problem Copying Files Dan Ritter <dsr@randomstring.org> - 2019-05-09 17:00 +0200
      Re: Speed Problem Copying Files Gene Heskett <gheskett@shentel.net> - 2019-05-09 17:00 +0200
  Re: Speed Problem Copying Files David Christensen <dpchrist@holgerdanske.com> - 2019-05-10 07:50 +0200
    Re: Speed Problem Copying Files Lothar Schilling <ls@proasyl.de> - 2019-05-10 11:00 +0200
      Re: Speed Problem Copying Files Lothar Schilling <ls@proasyl.de> - 2019-05-13 10:40 +0200
        Re: Speed Problem Copying Files Lothar Schilling <ls@proasyl.de> - 2019-05-13 11:00 +0200
          Re: Speed Problem Copying Files Tixy <tixy@yxit.co.uk> - 2019-05-13 11:20 +0200
          Re: Speed Problem Copying Files Curt <curty@free.fr> - 2019-05-13 11:40 +0200
          Re: Speed Problem Copying Files Michael Stone <mstone@debian.org> - 2019-05-14 13:40 +0200
        Re: Speed Problem Copying Files Tixy <tixy@yxit.co.uk> - 2019-05-13 11:00 +0200
        Re: Speed Problem Copying Files David Christensen <dpchrist@holgerdanske.com> - 2019-05-14 02:30 +0200
          Re: Speed Problem Copying Files Lothar Schilling <ls@proasyl.de> - 2019-05-14 09:40 +0200
            Re: Speed Problem Copying Files David Christensen <dpchrist@holgerdanske.com> - 2019-05-14 18:30 +0200
    Re: Speed Problem Copying Files Michael Stone <mstone@debian.org> - 2019-05-14 13:30 +0200
      Re: Speed Problem Copying Files David Christensen <dpchrist@holgerdanske.com> - 2019-05-14 21:20 +0200
        Re: Speed Problem Copying Files Michael Stone <mstone@debian.org> - 2019-05-14 22:10 +0200

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