General Kernel Configuration: Difference between revisions

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== Choice of the scheduler ==
== Choice of the scheduler ==


This in the section Block Layer.
* There is an I/O scheduler in the section Block Layer. This is different from the CPU scheduler. The SD scheduler is a *CPU* scheduler.
 
* In vanilla-sources, apparently there is no choice for the CPU scheduler. Same is true for ck-sources (where SD scheduler is mandatory).

Revision as of 08:55, 20 July 2007

This page helps with the configuration of the Linux kernel. Remember, configuring the kernel is easy - you just have to know which hardware you have quite well.

General Information

The kernel sources are unpacked in /usr/src (at least on Gentoo).

  • Once you are in the kernel source directory, use the following command to configure graphically your kernel:
make menuconfig
  • When migrating to a new kernel, copy your old .config file from the old kernel directory to the new one and type:
make oldconfig

Hardware Detection

  • Basically, emerge pciutils lshw usbutils, which gives you lspci, lshw, and lsusb.

Choice of the scheduler

  • There is an I/O scheduler in the section Block Layer. This is different from the CPU scheduler. The SD scheduler is a *CPU* scheduler.
  • In vanilla-sources, apparently there is no choice for the CPU scheduler. Same is true for ck-sources (where SD scheduler is mandatory).