SlackwareThis Forum is for the discussion of Slackware Linux.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
Before I begin, here is a little info on my system that may prove useful. I'm using Slackware 9 with Dropline GNOME 2.2.4 and XFree86 4.3 on an 800Mhz AMD Duron with an elderly 16MB nVidia RivaTNT video card.
And now for the dillema...
I recently compiled kernel 2.4.21 on my Slackware 9 installation. I had previously been using the precompiled bare.i kernel from the installation CD, and wanted to start using a kernel optimized for my processor. I followed the steps from the thread at the top of this forum to compile the new kernel, setting the CPU family to "Athlon/Duron/K7" and changing other settings relevant to my hardware.
The kernel installation ran and finished smoothly, and I was able to boot and use Dropline GNOME and all the apps I had previously compiled without problem.
Now here's the quirk: though the kernel is now technically optimized for my hardware, I've actually noticed a drop in performance. This is especially noticeable when X redraws the desktop after closing apps or windows. The performance degredation isn't monumental, not by any means, but it's still dissappointing since I had hoped to gain a little from it.
One thought has crossed my mind. Though everything still runs, the apps are nolonger optimized for my architecture. I read up on the Dropline documentation, which said that all their packages are optimized for i686, which, they say, includes the Athlon/Duron family.
So I'm stumped. If their software is still "theoretically" optimized for my CPU, then why the drop in performance? Am I correct in my assumptions, or is this as simple as an option I forgot to turn on in the kernel's menuconfig?
This is especially noticeable when X redraws the desktop after closing apps or windows. The performance degredation isn't monumental, not by any means, but it's still dissappointing since I had hoped to gain a little from it.
Probably disabled some of the advanced
features required by your graphics card,
like for instance forgot to enable MTRR's? :)
agpgart, DRI, ...
Thanks for the advice, guys. I have since gone back to the kernel's menuconfig and checked for the advanced AGP and DRI options. To my surprise, they were all already selected.
I figured out that the kernel is in fact faster than the bare.i, except when redrawing the desktop. I suppose the next thing I'll try is compiling nVidia's drivers for my card (I'm currently using the generic nv drivers with XFree86.