[CentOS] Write to USB pendrives horribly slow

Ljubomir Ljubojevic office at plnet.rs
Wed Jan 11 23:54:38 UTC 2012


On 01/11/2012 07:33 PM, m.roth at 5-cent.us wrote:
> wwp wrote:
>> On Wed, 11 Jan 2012 16:31:43 +0100 Ljubomir Ljubojevic<office at plnet.rs>
> wrote:
>>> On 01/11/2012 08:45 AM, wwp wrote:
>>>> On Tue, 10 Jan 2012 08:57:14 -0800 (PST) John Doe<jdmls at yahoo.com>
>>> wrote:
>>>>> From: wwp<subscript at free.fr>
>>>>>
>>>>>> I wonder if some mount options aren't wrong with USB pendrives, see:
>>>>>>     /dev/sdd1 on /media/monolith type vfat
>>>>>> (rw,nosuid,nodev,uhelper=udisks,shortname=mixed,dmask=0077,utf8=1,flush)
> my suspicion is about the flush option, which I find atypical here.
> <snip>
>> ehci_hcd does manage my devices (it's not a loadable module, apparently
> compiled in kernel instead), see for instance:
>>
>> kernel: usb 2-2: new high speed USB device using ehci_hcd and address 28
> <snip>
> This may be a dumb question, but have you done an lsusb? I'd be curious -
> I know that on my brand new, as of a few months ago, Dell I have two kinds
> of USB ports, 1.1 and 2.0. We also have some 1.1 webcams... and some 1.0.
>
> See if your pen drive's in a slower port.
>

Yes I have seen those too and was VERY surprised.


-- 

Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

Google is the Mother, Google is the Father, and traceroute is your
trusty Spiderman...
StarOS, Mikrotik and CentOS/RHEL/Linux consultant



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