What is an Operating System?
An operating system is a layer of software residing above hardware, hiding intricate details and providing an easy to use virtual machine.
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April 23, 2024
Process synchronization
The problem of synchronizing multiple concurrent processes is explained and a solution is provided with an example program.
February 10, 2023
D-Bus Tutorial
D-Bus is a mechanism for interprocess communication for Linux systems. D-Bus concepts along with example client-server programs are explained.
October 3, 2018
POSIX Threads Programming in C
POSIX threads, aka pthreads, provide concurrent control flow within a process. pthreads are explained with an example program.
October 3, 2018
POSIX message queues in Linux
POSIX message queue calls for interprocess communication (IPC) between processes are explained with an example of server and client programs in C under Linux.
October 2, 2018
FIFOs in Linux
Any two processes can communicate using FIFOs in Linux. Interprocess communication using FIFOs is explained using a client-server example.
September 30, 2018
Pipes in Linux
The pipe is a fundamental interprocess communication mechanism in Linux. Interprocess communication using pipes is explained with an example.
September 30, 2018
umask in Linux
The umask command is used for setting a mask which is used for managing the permissions of files created by processes during a login session.
September 29, 2018
htop command in Linux
htop is a ncurses based program for viewing processes in a Linux system. htop gives information about processor, memory and swap usage.
September 29, 2018
pidstat
The pidstat command gives the CPU utilization, I/O statistics, page faults and memory utilization for processes and threads in Linux systems.
September 25, 2018