your bytes leave the application layer on Host A and travel through the transport and network layers on Host A; then they go down to the physical medium, across the medium, and up again through the various lower levels to the application layer on Host B in much the same way. If...
Sometimes you need to find information about your CPU on your Linux machine and there are many ways to do it. So in this tutorial I will teach you how to find details about your CPU such as processor, architecture, vendor name and many others that are very useful to you. MY LATEST VID...
and the operating system killed it. Similarly, a bus error means that the program tried to access some memory in a particular way that it shouldn’t. When you get one of these
However, there may be rare situations where you need to clear theBufferandCache, such as if you are experiencing severe memory pressure and cannot free up memory by other means. In these cases, you should proceed with caution and be aware of the potential performance impact. Similarly, clearin...
You now know the physical and logical structure of a Linux system, what the kernel is, and how to work with processes. This chapter will teach you how the kernel starts— or boots. In other words, you’ll learn how the kernel moves into memory up to the point where the first user pr...
This chapter is a guide to the Unix commands and utilities that will be referenced throughout this book. This is preliminary material, and you may ...
NUMA memory nodes, shared caches, processor packages, processor cores, and processor "threads". Make sure you have installed hwloc on your system: $ sudo apt install hwloc To display your Linux CPU details, run: $ hwloc-ls This command will display your processor details in a simple map-lik...
mmp– Memory-mapped device. TYPE– Shows the type of node associated with the file, such as: Unix– for Unix domain socket. DIR– represents the directory REG– representing the regular file CHR– represents the special character file.
1.8) Mounting NFS Share in Linux Make sure you already have installed NFS client package on your computer. I assume you have already installed NFS and started the necessary services. Run the following command to check the available share for you. ...
After VM boots up (or crashes), run the following to create the dump: sudovirsh qemu-monitor-commanddump-guest-memory -w <path to save thefile> Check dump file size, if it is 0 bytes, it means that the VM couldn't load the vmcoreinfo driver and the only way is to create an ...