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Linux From Scratch This Forum is for the discussion of LFS.
LFS is a project that provides you with the steps necessary to build your own custom Linux system.


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Old 07-10-2005, 02:48 PM   #1
Registered: Jan 2004
Distribution: LFS
Posts: 91

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gettin the most out of old hardware


I've just bought a Fujutsu Stylistic 3400 Tablet PC on e-bay and I figure that when it arrives, I'm gonna want Linux on it

Ok, Now I've used LFS on my servers, but never a desktop machine. Most of the How-Tos I've seen for these beasts use Debian or similr, which I'm fine with, however I want to squeeze every last ounce of performance out of the beast.

I'm thinking of going with LFS and compiling the lot (including X-Windows etc.) which will be a new experience for me! One of the reasons for this is that I don't want any extra services getting put in that I don't strictly need - wasted CPU, memory etc!

I have some questions though:-

1) If I use ICC rather than GCC will I get better performance (as suggested in a recent Linux Format article)?

2) If I use ICC instead, is there anything I should know?

3) Am I going to get a faster system using this than going with a regular distro? Or will the difference be so small that it isn't really worth the work?

4) I've heard it said that not having a swap partition will help with battery life. Will this bomb performance though?

The spec of the machine is P3 400Mhz 128Mb RAM (although I may upgrade this to the maximum of 192Mb) 6Gb Ultra ATA HDD

Any and all thoughts welcome....

Old 07-10-2005, 03:01 PM   #2
Registered: Jul 2005
Distribution: LFS
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Hint: How to install the Intel C/C++ Compiler for LFS.
Old 07-11-2005, 03:13 AM   #3
Registered: Jan 2004
Distribution: LFS
Posts: 91

Original Poster
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Humm, thanks for that!!

The hint doesn't really give me any real clues as to whether this is worth the hassle though!!

Can anyone advise me on how much "better" ICC-compiled code is than GCC-compiled code on my hardware?

Also, it says the kernel and X11 can't be compiled with ICC. These would, I assume, be two of the biggest parts of the system, which makes me wonder if the improvements in the other bits will be noticable.

Finally, if I can't compile X11 itself with ICC, does that mean I can't compile X-based programs? I'm thinking mainly of OpenOffice.Org 2 and firefox.

Thanks, once again, in advance of any help!!!

Old 07-20-2005, 05:43 PM   #4
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Registered: Feb 2004
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I seriously doubt that it would. Intel's compiler might know how to make special use of certain semi-documented instructions present on Intel chips to squeeze a little better performance out of CPU-intensive operations ... but most things that computers are asked to do aren't really like that. (They're I/O-intensive, if they are "intensive" at all.)

The GCC compiler is a good one. I'd use it.


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