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Fine-Tune The Kernel

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One of the advantages we Linux geeks like to claim over competing operating systems is the flexibility of the system. We're not talking about changing your screen saver--we're talking the guts of the operating system itself.

The most basic, core level part of an operating system is called the kernel. The term "kernel" is generally used to refer to the Linux kernel, but more accurately every OS has a kernel. This piece is slightly dated but has a still sound description of kernels:

The kernel is the first part of the operating system to load into memory during booting (i.e., system startup), and it remains there for the entire duration of the computer session because its services are required continuously. Thus it is important for it to be as small as possible while still providing all the essential services needed by the other parts of the operating system and by the various application programs.

As small as possible. That's where you come in.

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Learning The Linux File System

Before we get started, let’s avoid any confusion. There are two meanings to the term “File System” in the wonderful world of computing: First, there is the system of files and the directory structure that all of your data is stored in. Second, is the format scheme that is used to write data on mass storage devices like hard drives and SSD’s. We are going to be talking about the first kind of file system here because the average user will interact with his or her file system every time they use a computer, the format that data is written in on their storage devices is usually of little concern to them. The many different file systems that can be used on storage is really only interesting to hardware geeks and is best saved for another discussion. Now that that’s cleared up, we can press on. (Read the rest at Freedom Penguin)

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