On 04/29/2014 02:20 AM, Amos Jeffries wrote: > perfecting the COSS caching model into the one now called > "rock" to load multiple objects in single fast disk loads Please note that Rock does not use the COSS caching model, does not try to perfect it, and does not load multiple objects in single fast disk read. Like with any two storage systems, the are some similarities between COSS and Rock (e.g., both use a single file per cache_dir), but the two should be viewed as completely different storage models. Thank you, Alex.