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Re: Speed Problem Copying Files

From Lothar Schilling <ls@proasyl.de>
Newsgroups linux.debian.user
Subject Re: Speed Problem Copying Files
Date 2019-05-09 14:50 +0200
Message-ID <xVQEO-65h-3@gated-at.bofh.it> (permalink)
References (1 earlier) <xVNnA-4dU-17@gated-at.bofh.it> <xVNQB-4nq-5@gated-at.bofh.it> <xVO0i-4qM-3@gated-at.bofh.it> <xVOtk-4Q8-17@gated-at.bofh.it> <xVPpn-5oW-1@gated-at.bofh.it>
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Am 09.05.2019 um 13:27 schrieb Martin:
> [..]
>> hdparm -tT /dev/sda
>> /dev/sda:
>>  Timing cached reads:   13348 MB in  2.00 seconds = 6683.42 MB/sec
>>  Timing buffered disk reads: 1014 MB in  3.00 seconds = 337.72 MB/sec
>>
>> iotop -o (for rsync and cp)
>> Total DISK READ :       0.00 B/s | Total DISK WRITE :     476.15 K/s
>> Actual DISK READ:       0.00 B/s | Actual DISK WRITE:     487.86 K/s
>>   TID  PRIO  USER     DISK READ  DISK WRITE  SWAPIN     IO>    COMMAND
>> 19531 be/4 root        0.00 B/s  476.15 K/s  0.00 % 99.24 % rsync
>> --info=progress2 /daten/testfile /daten/testfile2
>>
>> iotop -o (for dd)
>> Total DISK READ :       0.00 B/s | Total DISK WRITE :     297.68 M/s
>> Actual DISK READ:       0.00 B/s | Actual DISK WRITE:     297.68 M/s
>>   TID  PRIO  USER     DISK READ  DISK WRITE  SWAPIN     IO>    COMMAND
>> 19557 be/4 root        0.00 B/s  297.68 M/s  0.00 % 99.99 % dd
>> if=/dev/zero of=/daten/testfile bs=1G count=10 oflag=direct
> Show us the 'dd if=/daten/testfile bs=1G oflag=direct of=/dev/null', please.
> If this is as slow as this ~480k/s above, check your disk's health status. Like with smartmontools or some disk-utility software.
>
> Martin
>
Fast enough...

dd if=/daten/testfile bs=1G oflag=direct of=/daten/testfile2
10+0 Datensätze ein
10+0 Datensätze aus
10737418240 Bytes (11 GB, 10 GiB) kopiert, 72,7297 s, 148 MB/s

dd if=/daten/testfile of=/dev/null
20971520+0 Datensätze ein
20971520+0 Datensätze aus
10737418240 Bytes (11 GB, 10 GiB) kopiert, 36,6887 s, 293 MB/s

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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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