https://www.kernel.org/doc/html/latest/admin-guide/mm/ksm.html https://www.kernel.org/doc/html/latest/admin-guide/mm/ksm.ht... zero-copy is harder as one syste

https://www.kernel.org/doc/html/latest/admin-guide/mm/ksm.html https://www.kernel.org/doc/html/latest/admin-guide/mm/ksm.ht... zero-copy is harder as one system upgrade on one of them will trash it, but KSM is overall pretty effective at saving some memory on similar VMs