-max_kernel_pages - set to maximum number of kernel pages that KSM may use
- e.g. "echo 100000 > /sys/kernel/mm/ksm/max_kernel_pages"
- Value 0 imposes no limit on the kernel pages KSM may use;
- but note that any process using MADV_MERGEABLE can cause
- KSM to allocate these pages, unswappable until it exits.
- Default: quarter of memory (chosen to not pin too much)
-