To find out the virtual memory page size on a Linux system, you can use the getconf command. getconf is a utility that displays the values of system configuration variables.
Here's an example of how to use getconf to display the virtual memory page size:
$ getconf PAGESIZE
This will display the size of the virtual memory pages, in bytes.
You can also use the cat command to display the page size from the /proc/meminfo file. For example:
$ cat /proc/meminfo | grep Hugepagesize
This will display the size of the huge pages, which are a type of virtual memory page used for large memory allocations.
Note: The specific options and syntax for these commands may vary depending on your Linux distribution and version. Consult the getconf and cat man pages or documentation for your system for more information.
It's also important to note that the virtual memory page size can vary depending on the architecture of the system and the configuration of the kernel. Some systems may support multiple page sizes, or the page size may be adjustable at runtime. Consult the documentation for your system for more information.