If you ever needed to bring the process back, you could use soft-dirty-bit[1] to determine which pages were modified since forking and only transfer those. CRIU

If you ever needed to bring the process back, you could use soft-dirty-bit[1] to determine which pages were modified since forking and only transfer those. CRIU uses it for incremental snapshots (in fact, they wrote the kernel patch afaik) [1] https://www.kernel.org/doc/Documentation/vm/soft-dirty.txt https://www.kernel.org/doc/Documentation/vm/soft-dirty.txt