Large pages
Large pages is a mechanism available in all modern operating systems. With large pages, a virtual address page is increased from the order of several kilobytes to the order of several megabytes. The benefit is that virtual address translation gets sped up, since there are less misses in the translation lookaside buffer. The downside is that the size of the smallest addressable unit increases dramatically, which may cause native memory fragmentation.
See also Native memory.
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