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Written by Sobex on 2025-01-20 at 08:36

Random #linux #numa question.

If I have 2 processes, using the same shared library, the immutable (TEXT and RODATA) sections are usually loaded only once in the physical memory, and mapped into both process.

However, if each process asks the kernel to pin its memory on a different NUMA node, anyone knows if the kernel duplicates the physical pages on each numa node, if only one process wins, or if this results in bad behaviour (pages going back and forth) ?

Boost reduce the rate of cache misses in your CPUs

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