What is Linux Out-Of-Memory OOM Killer ?
Major distribution kernels set the default value of /proc/sys/vm/overcommit_memory to zero, which means that processes can request … Read more
Linux, OS Concepts and Networking
How to avoid a process from being killed in case of Out of Memory ?
In our previous post, we understood “What is Out of Memory Killer ?” In this post, we … Read more
How to avoid zombie process in Linux ?
Zombie process is the process which dies/finishes immediately and whose parent didn’t cares to handle the status … Read more
How to create process in Linux using fork system call ?
Below is simple process creation program using fork system call, fork return child’s process Id in main/parent … Read more
Send and Receive (Transfer) integer over socket using C program
Following the simple example which shows how we can send and receive an integer over a socket. … Read more
C program to check total and free RAM memory in Linux
Following C program helps you to identify what is the total and free memory / RAM available … Read more
Example for using shared data between two Unix threads
Following is the simple example to show, how we can create two threads at a time and … Read more
How to use pthread_mutex_lock to prevent modification of shared variables ?
Following is the simple example to show, how we can create two threads at a time and … Read more
Creating a simple thread in Linux using pthread library api’s
In this post, we create a simple thread using pthread library API “pthread_create” and wait for this … Read more
Understanding pcap file format – part I – Global Header
The file must begin with a Section Header Block. Below is typical configuration, with a single Section Header … Read more
Understanding Linux page cache memory
If data is written, it is first written to the Page Cache and managed as one of … Read more