Understanding the Top command on Linux

 Howto  7 Responses »
Aug 282012
 

top

Article by AlexioBash published on his website about ArchLinux in italian.

Know what is happening in “real time” on your systems is in my opinion the basis to use and optimize your OS. On ArchLinux or better on GNU/Linux in general the top command can help us, this is a very useful system monitor that is really easy to use, and that can also allows us to understand why our OS suffers and which process use most resources. The command to be run on the terminal is:

$ top

And we’ll get a screen similar to the one on the right:

Let’s see now every single row of this output to explain all the information found within the screen.
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The Life of a Process on Linux

 Article  No Responses »
Jun 262011
 

forkArticle by Santosh Sivaraj, originally published on fossix.org

Introduction

The computer system is becoming a complex beast which cannot be tamed easily. In the new world the operating systems have become too big and complex for one to learn everything in depth. Most new aspiring system programmers do not have a picture of what is happening in a system when you type ./a.out. This article is an attempt to provide the picture and also the necessary details for a Linux newcomer to grasp so that he/she can refer to more detailed books for further learning. This article/paper is just a starter so when newcomers start with bigger books don’t get overwhelmed without knowing the natural flow of the Linux system.

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Monitoring process

 Article  2 Responses »
Nov 132010
 

htopThose who work with Linux servers, but also those who use Linux as a desktop every day knows that it is very useful to have a list of processes running on the machine with a list of resources they are using, to see who is eating all the memory or is using all the CPU, and the ps command is not exactly the most convenient. So we ‘ll see a series of programs that serve to show what’s happening in our system and who is using our resources.

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