205 Virtual memory isn't even necessarily memory. For example, if a process memory-maps a large file, the file is actually stored on disk, but it still takes up "address space" in the process. …

Oct 24, 2011 · What are RSS and VSZ in Linux memory management? In a multithreaded environment how can both of these can be managed and tracked?

The virtual memory consumed by a process is the total of everything that's in the process memory map. This includes data (eg, the Java heap), but also all of the shared libraries and memory …

Nov 25, 2011 · The total amount of virtual memory space available on a linux system is (roughly) RAM + swap space - kernel overhead. The RAM is the hardware you have installed and the …

I was also surprised that Linux allows you to allocate more virtual memory than there is physical memory + swap space, but apparently it helps performance in typical situations.

Dec 10, 2015 · Windows and Linux (at least on Intel 32/64 bit systems) both implement virtual memory using the same mechanism: hardware supported page tables. The OS and the …

Dec 10, 2013 · Here's a partial answer, maybe it will help. Linux divides the kernel virtual address space to two parts - lowmem and vmalloc. Lowmem uses a 1-1 mapping between virtual and …

On GNU/Linux, a process can examine the mappings created in its virtual address space just by reading the file /proc/self/maps. You can learn a lot by reading the output of the command cat …

Jul 25, 2013 · As program is stored on flash/disk. For it execution, program is loaded into virtual memory and is mapped to RAM by virtual manager. During its execution process is in RAM. …

Apr 6, 2013 · Virtual address: The address you use in your programs, the address that your CPU use to fetch data, is not real and gets translated via MMU to some physical address; everyone …