Page Size and Memory Layout

Darryl Gove, February 7, 2008

Support for large pages has been available since Solaris 9. I've previously talked about the various ways that an application can be coaxed into using large pages. However, I wanted to quickly write up how the large pages are laid out in memory. Take the following code that allocates a large chunk of memory, and then iterates over it for enough time to run pmap -xs on it: