The Linux 3.8 Kernel Can Save A Lot Of RAM

For certain workloads with the Linux 3.8 kernel the physical memory usage is lowered by a significant amount thanks to improvements within this kernel that's presently under development.

This merge brings forth zero huge_page support, which as mentioned in the commit message, "Not a performance boost but it an save large amounts of physical memory in some situations."

The zero huge page support for the Linux kernel was introduced by Intel.

Reference: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f6e858a00af788bab0fd4c0b7f5cd788000edc18