Apache Reference: mod_mmap_static, MMapFile
Memory-Map a Document for Faster Delivery
Syntax: MMapFile file [file ...]
Example: MMapFile /www/index.html
Since: Apache 1.3
This directive maps one or more files (given as the whitespace- separated arguments in file) into memory at server start-up to speed up the document's delivery. The files are automatically unmapped upon server shutdown. When the files have changed on the file system, you must send at least a
SIGUSR1signal to the server to remap them. Use this experimental functionality with care, however. Keep in mind that the document content is not re-mapped automatically by mod_mmap_static - hence the ``static'' in the module's name.