How do I limit C program memory allocation to 1 virtual page on macOS Sonoma?

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How do I limit C program memory allocation to 1 virtual page on macOS Sonoma?

Hello I was wondering if there is a way to ensure that a C program I am writing can only write to 1 virtual page. I am trying to test how space efficient different Mallocs are and I need a way to ensure that the OS will not try to swap out pages making the space efficiency test pointless. I am on Mac OS Sonoma v14.5

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Posted on Mar 6, 2025 9:24 PM

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Answer 1

BobHarris

Level 9

56,633 points

Mar 6, 2025 9:47 PM in response to DesperateGradStudent

It is generally a bad idea to attempt out-smarting memory management, as it often backfires, either on your program or affecting other programs running on the system.

Look at mmap(2) and mlock(2)

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