IPC is a method that allows processes to communicate and exchange data. There are different types of IPC facilities, including semaphores, message queues, shared memory, and pipes. IPCS is a ...

Several commands report on how much memory is installed and being used on Linux systems. You can be deluged with details or get a quick and easy answer, depending on ...

The following excerpt is from chapter 3, User-Level Memory Management, of Arnold Robbins’ book Linux Programming by Example: The Fundamentals, Prentice Hall PTR; (April 12, 2004), used with permission ...

Memory is still one of the things that most determines how well your Unix servers will perform. Knowing what commands will tell you what you need to know and what their responses mean will help keep ...

Let’s look at some basic commands that report on memory usage. The first that probably comes to mind is free. The free command will tell you about used and unused memory and about swap space. Physical ...

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When it comes to system administration, one of the earliest decisions to be made is how to configure swap space. Many readers already are thinking they know what to do: throw in as much RAM as you can ...