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Re: Supper slow USB disk

From Mostafa Shahverdy <mostafa@mostafa.info>
Newsgroups linux.debian.user
Subject Re: Supper slow USB disk
Date 2017-10-01 17:00 +0200
Message-ID <uvNSN-3pJ-5@gated-at.bofh.it> (permalink)
References <uvtAK-75a-21@gated-at.bofh.it> <uvun7-7CT-3@gated-at.bofh.it> <uvByh-3Q8-5@gated-at.bofh.it> <uvLHj-2as-3@gated-at.bofh.it>
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>> Using my own system, it copies at most 200kps while using a live cd it
>> copies
>> up to 4Mps
>>
>
> measured how?
>
​That's what Nautilus show while copying a movie to my disk.​

​but to make sure, I tried using dd to have a better measurement:


$ sudo dd if=/dev/zero of="/media/mostafa/Transcend2/largefile" bs=1M
count=10
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 15.6461 s, 670 kB/s​



> And the card reader is resetting every 30 seconds. Can you either unplug
> the card reader or move the flash drive to the bus where the wireless
> adapter is located to see what effect that has?
>

​I removed card reader and changed the port of the flash drive  and still
the same.

I also noticed something in my dmesg log:

[    1.173522] ehci-pci 0000:00:1a.7: cache line size of 32 is not supported

can this be the reason?

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Thread

Supper slow USB disk Mostafa Shahverdy <mostafa@mostafa.info> - 2017-09-30 19:20 +0200
  Re: Supper slow USB disk Michael Stone <mstone@debian.org> - 2017-09-30 20:10 +0200
    Re: Supper slow USB disk Michael Stone <mstone@debian.org> - 2017-10-01 14:40 +0200
      Re: Supper slow USB disk Mostafa Shahverdy <mostafa@mostafa.info> - 2017-10-01 17:00 +0200
        Re: Supper slow USB disk Mostafa Shahverdy <mostafa@mostafa.info> - 2017-10-01 17:00 +0200
          Re: Supper slow USB disk Mostafa Shahverdy <mostafa@mostafa.info> - 2017-10-01 17:20 +0200
            Re: Supper slow USB disk Joe <joe@jretrading.com> - 2017-10-01 18:50 +0200
              Re: Supper slow USB disk Mostafa Shahverdy <mostafa@mostafa.info> - 2017-10-02 04:50 +0200
          Re: Supper slow USB disk Joe <joe@jretrading.com> - 2017-10-01 17:20 +0200

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