Unless you explicitly prevent it, the kernel might swap out lesser-used parts of your object pool, dedupe pages, and so on. Accessing that page again may be muc

Unless you explicitly prevent it, the kernel might swap out lesser-used parts of your object pool, dedupe pages, and so on. Accessing that page again may be much slower and potentially fail due to OOM. To actually control all dynamic behavior you need to go deeper into the system, locking pages into memory etc. https://www.kernel.org/doc/html/latest/admin-guide/mm/zswap.html https://www.kernel.org/doc/html/latest/admin-guide/mm/zswap.... https://en.wikipedia.org/wiki/Kernel_same-page_merging https://en.wikipedia.org/wiki/Kernel_same-page_merging https://www.man7.org/linux/man-pages/man2/mlock.2.html https://www.man7.org/linux/man-pages/man2/mlock.2.html