Hi John, and Connie

Thanks for you answers.
I Have been trying to set SL-5.3 x8_64 in an Asus F3jr

The devices are these :

[root@iskandhar ~]# lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:01.0 PCI bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express PCI Express Root Port (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon X2300
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
03:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
06:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller
06:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19)
06:01.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 01)
06:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 0a)

The results of hdparm are those...

[root@iskandhar ~]# hdparm -t /dev/sda

/dev/sda:
 Timing buffered disk reads:  104 MB in  3.04 seconds =  34.21 MB/sec
[root@iskandhar ~]# hdparm -T /dev/sda

/dev/sda:
 Timing cached reads:   3452 MB in  2.00 seconds = 1727.37 MB/sec
[root@iskandhar ~]#


Trying in an install that i made ( everything the same, except crypto ) in an external HDD amounted to the same delays in I/O...

The *buntu I am talking about is Ubuntu 8.04 amd 64 LTS, or a clone of it ( CaeLinux 2009 ) which were installed before in this very same laptop.

Same Hardware, no disk I/O delay...   what other tests can I run to diagnose this stuff...?

BRGDS

Alex

PS: I send my dmesg as attachment



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