Virtual memory verification

Question

Hi

I was asked to verify the concept that we do have virtual memory.

To prove that , I thought we will have process memory allocated, but how to get this idea.

If this is known , should I create large class objects which need more than available memory.

Any suggestions are most welcome.

Answer 1

You would need to compile and run the test program on a local machine where you know how much physical memory is installed (as opposed to here which runs on Sololearn servers).

From there, you could create a filler class, use sizeof() to measure how many bytes it needs, then create an array of that class such that the total size would be bigger than either:
A) Max physical memory allocatable per process
B) Total physical memory available

Answer 2

Ketan Lalcheta as you can see that the Playground environment here
has a memory allocation limit somewhere between 1GB (1024MB) and 2GB (2048MB). It's also highly likely there's a timeout in place which most of us already know is relatively short.

https://sololearn.com/compiler-playground/cnyGh8M5SQf9/?ref=app

Answer 3

if you're on windows, perhaps this link could be useful
https://learn.microsoft.com/en-us/windows/win32/memory/reserving-and-committing-memory

https://cplusplus.com/forum/windows/67748/