What is virtual memory used by the process?

Virtual memory is a feature of an operating system that enables a computer to be able to compensate shortages of physical memory by transferring pages of data from random access memory to disk storage. This process is done temporarily and is designed to work as a combination of RAM and space on the hard disk.

How do you read top memory usage?

Viewing memory usage in top Hit Shift+M to see the list sorted by memory usage.

How is virtual memory divided?

Virtual memory is divided into pages and physical memory is divided into page frames. Linux uses a very typical 4K byte page size. Each and every mmemory access goes through the MMU where the address is broken into the page portion and the offset in the page.

What is VIRT RES and SHR in top?

RES stands for the resident size, which is an accurate representation of how much actual physical memory a process is consuming. (This also corresponds directly to the %MEM column) SHR indicates how much of the VIRT size is actually sharable memory or libraries.

How does virtual memory work on a computer?

When RAM runs low, virtual memory helps to move data from RAM to a space called a paging file. Moving data to paging file can free up the RAM so your computer can complete its work. In general, the more RAM your computer has, the faster the programs run.

What does virtual memory size in top mean?

Address space (ie. virtual memory in the process list) doesn’t cost anything; it’s not real. What’s real is the RSS (RES) column, which is resident memory.

Which is virtual memory management techniques have you used?

The use of virtual memory slows a computer because data must be mapped between virtual and physical memory, which requires extra hardware support for address translations. Which virtual memory management techniques have you used?

What to do if your computer has too much virtual memory?

Since virtual memory uses space on your hard disk, it is important to remove files that are taking up too much space. Before you take these steps, you might want to back up your files to another hard drive. Open the Windows search bar. You can find this by clicking the magnifying glass icon in the bottom-left corner of your screen.