Knoppix mit Thinkpad T41P, Version 3.6 geht besser als 4.02

[Sternenschwaermer]

Hi together!
:?
It's a long time ago I was last here

I' currently working with Linux because of my problems with my harddisk on my Thinkpad.

Hitachi drive fitness nest told me when running the longer fitness test that some sectors are damaged.

IBM told my at phone that when installing Linux (tried to run OpenSUSE 10 on my notebook) it is normal that the drive fitness test thinks there are sectors defect on my harddisk.
I don't think it's normal but you maybe know it better :wink:


Well, to the point:
I've got a Knoppix CD from "com!", a German PC magazine, and I've got a newer Knoppix I burnt yesterday with my PC, version 4.02 on CD is it.

The thining pause on my notebook is larger than that when using Knoppix 3.6.
I started the last CD with "knoppix26" to get Kernel 2.6.9 working.

When starting Knoppix 4.02, it works slowlier, though there's not more data on my CD, and the performance while reading from my USB harddisk is lots slowlier than with my Knoppix 3.6-com-CD.

I logged in as root, and typed "hdparm -v /dev/hda, and the parameter "using_dma = 1" tells me both system should work with DMA or Direct Memory Access =on. :roll:

Is that normal, a speed with a maximum of 5 Mbytes, rapidly sinking at about 1 MB per second?

Maybe is that because I've got no swap-partition in use?

Regards,

Thilo

[Harry Kuhman]

It's a long time ago I was last here
Sure is, you joined almost 2 years ago but this is your first post.


When starting Knoppix 4.02, it works slowlier, though there's not more data on my CD, and the performance while reading from my USB harddisk is lots slowlier than with my Knoppix 3.6-com-CD.

I logged in as root, and typed "hdparm -v /dev/hda, and the parameter "using_dma = 1" tells me both system should work with DMA or Direct Memory Access =on. :roll:

Is that normal, a speed with a maximum of 5 Mbytes, rapidly sinking at about 1 MB per second?

Maybe is that because I've got no swap-partition in use?

DMA is off by default in both version you write of, can be enabled by knoppix dma at the boot prompt. Some systems benefit greatly by truning dma on. Some even need it. But dma was enabled by default in a few versions and it caused a lot more trouble than it resolved, so we are back to the old default; the best advice there that I can give is experiment and see for yourself.

I doubt that you have a swap partitioin issue, but we don't even know your memory size or what you are running at the time, so it's not something we can provide good feedback on.

I think your most likely problem is that your may have burnt the disc at a high speed (to be fair, I think that of almost any problem until proven otherwise). Here is a link to a user's post (http://www.knoppix.net/forum/viewtopic.php?p=78583#78583) who had a very slow system that was confirmed to be due to a high speed burn. There are other cases (http://www.knoppix.net/forum/viewtopic.php?t=17788) of problems with high speed burns, many others (http://www.knoppix.net/forum/viewtopic.php?t=17064).