Project Pattern implements our novel Pattern-Aware cache management strategy. The file called Requests.csv in directory track is the simulation requests. We test the response time and cache hit ratio of these requests in our experiments.

There are 7 comparison experiments, including the direct method without SSD cache implemented in project NoCache, LRU policy applied both on full and sub FITS files, which are implemented in LRU_ALL and LRU_SUB respectively, LFU policy applied both on full and sub FITS files, which are implemented in LFU_ALL and LFU_SUB respectively, LRFU policy applied both on full and sub FITS files, which are implemented in LRFU_ALL and LRFU_SUB respectively.

All these experiments are conducted in an environment with a cfitsio library. The latest version is always available from this link: http://heasarc.gsfc.nasa.gov/FTP/software/fitsio/c/cfitsio_latest.tar.gz