Cache-toys

Simple tools for checking & influencing filesystem cache content on POSIX systems

While the pagecache tools have historically been developped & tested on some other systems, they are now mostly used/tested on Linux.

drop-from-pagecache

Asks the system to remove files content from the pagecache using posix_fadvise().

prefetch-to-pagecache

Asks the system to prefetch files content to the pagecache using posix_fadvise().

is-in-pagecache

Check if some part of the content of files are in the pagecache (using mincore()).

slices-in-pagecache

Display which parts of the content of files (if any) are in the pagecache (using mincore()).

hrr

Simple random reader program with optional hints to the pagecache. Both POSIX (posix_fadvise()) and Linux specific (readahead()) hints are supported.