libcache-fastmmap-perl 1.29-1 (powerpc binary) in ubuntu karmic

 Cache::FastMmap is a shared memory cache through an mmap'ed file. It's core
 is written in C for performance. It uses fcntl locking to ensure multiple
 processes can safely access the cache at the same time. It uses a basic LRU
 algorithm to keep the most used entries in the cache.