What is an Operating System?
An operating system is, conceptually, a layer of software residing just above the hardware and below all other software layers. It hides the intricate details of hardware resources like processor,…
An operating system is, conceptually, a layer of software residing just above the hardware and below all other software layers. It hides the intricate details of hardware resources like processor,…
1.0 Problem Suppose there are n concurrent peer processes, where n > 1. All these processes have a checkpoint, which is an important point in the execution trace of the…
POSIX threads A process is an execution environment in an operating system. A process has code and data segments which are initialized from a program during an exec system call.…
FIFO FIFOs are pipes with a name and are also commonly referred to as named pipes. Pipes are common on Linux command lines but do not have a system-wide name.…
Interprocess communication A process is an active operating system entity which executes programs. Normally, a process, like a specialist, does one particular job (well). In real life, there are complex…
File Permissions In Linux, each files has nine permission bits. There are three basic permissions, read (r), write (w) and execute (x), for a file. These three permissions are there…
htop is a ncurses based program for viewing processes in a Linux system. htop gives visual indications about processor, memory and swap usage.
The best way to use pidstat is to pass a list of process ids with the -p parameter. The -u option reports CPU utilization. The -l parameter displays the process…