[tex-live] slow installation and update Texlive 2011 portablefrom mounted on WindowsXP

Zdenek Wagner zdenek.wagner at gmail.com
Sun Nov 13 13:26:46 CET 2011

2011/11/13 peter knezel <peter.knezel at gmail.com>:
> Well, in fact I cannot describe what "too long" exactly means - it is too
> subjective. :-))
> What I can tell for sure that the device is usb 2.0 type and was connected
> to the rear panel of my PC. Hope this info helps a bit.
I have made a timing test on Linux CentOS 4 and 5, on a dual core and
quad core Intel 4.3 GHz. Network install of scheme full onto a hard
disk takes typically 11 minutes. Copying the installed tree to a USB
stick takes 17 minutes, unmounting (when the remaining cache contents
is written to the stick) takes 8 minutes. Windows users are supposed
to remove the USB stick without disconnecting it safely, therefore the
cache is physically written after each file. I would therefore not be
surprised if the time were doubled in Windows. Thus 50 minutes seem to
me as time limited both by HW and OS.

> peter
> 2011/11/12 Zdenek Wagner <zdenek.wagner at gmail.com>
>> 2011/11/11 peter knezel <peter.knezel at gmail.com>:
>> > Hello all,
>> >
>> > can somebody tell me why the portable installation to a 8GB USB2.0 flash
>> > disk takes too long?
>> > It was done from the mounted iso texlive2011-20110705.iso.
>> >
>> > I am currently updating tha packages (405) on the usb flash disk from
>> > command line with tlmgr update -all and it is slow as well.
>> >
>> Please, be more precise. What do you mean by "too long"? Is is an
>> order of magnitude longer that time corresponding to the declared
>> speed of your USB interface? Is the interface in your computer USB 1
>> or USB 2? Is your USB key connected to the rear panel (ie directly to
>> the motherboard) or to the front panel?
>> > Regards,
>> >
>> > peter
>> --
>> Zdeněk Wagner
>> http://hroch486.icpf.cas.cz/wagner/
>> http://icebearsoft.euweb.cz

Zdeněk Wagner

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