Hi Again, The issue I am refering is about a DVD ( source tared files, lots of PDF books, some movies... A whole Data DVD, 4.4 Gb of it... 60 mn to copy/paste to ~/Desktop... 2009/9/30 Stephen John Smoogen <[log in to unmask]> > On Wed, Sep 30, 2009 at 11:43 AM, Alexandre Pereira > <[log in to unmask]> wrote: > > Hi Forum > > > > I have installed SL-5.3 x86_64 default installation/partitioning scheme > in > > my laptop... the only... call it "different" thing that I have done is an > > LVM Luks encryption of my HDD ( It is a laptop, and I carry a lot of > sensble > > stuff in it... ) In know it is not "MIL-SPEC hard" as a pkcs #13 > protocol ( > > Elliptic Curve cryptography over discrete fields ) but man... I do not > > carry warhead design plans, and sizing calculations with me... :-) > > > > Anyway... Trying to dump the content of DVD data, 4.5 Gb of it into my > > desktop took me about 70mn... THIS IS NUTS... Trying to do the same > in > > another install , unencrypted this time, in another machine ammounted to > the > > same... > > > > now, this IS an issue... this laptop will be used in heavy number > > crunching engineering applications... meaning disk I/O operations in the > GB > > range ( Finite elements meshes, Genetic algorithm operations... massive > data > > transfers to put it simply ) > > > > Can this be solved... ? > > > > I used (aaarrgghhhh !!! ) Ubuntu with this same lappy and this problem > was > > not there.... > > > > Well you can give a lot more info because there isn't enough to help with: > 1) What kind of laptop. What kind of disk drive? What kind of DVD drive > 2) What version of Ubuntu did you use (there a ton of different > versions so it will help to figure out what it was ) > 3) what does iostat or another performance program say > 4) Did you get the data from a DVD or network? You reference a desktop > and a laptop.. not sure if you mean 2 differnet types of hardware or > one. > > Realize that IO on laptops is slow. Your standard Laptop drive is > 5400 RPM, and the channel to talk through it is usually not even as > fast as commodity desktops. > > > > > -- > Stephen J Smoogen. > > Ah, but a man's reach should exceed his grasp. Or what's a heaven for? > -- Robert Browning >