fcoretools | Tools to advise the IO scheduler | Mehr ...
fincore is a command that shows which pages (blocks) of a file are in core memory. It is particularly useful for determining the contents of the buffer-cache. . fadvise is a command used to give file advisory information to the operating system. Its "--dontneed" option is particularly useful in that it causes the files' pages (blocks) to be evicted from the buffer-cache.
