Data caching methods and systems are provided. The data cache method loads data into an installation cache and a cache (simultaneously or serially) and returns data from the installation cache when the data has not completely loaded into the cache. The data cache system includes a processor, a memory coupled to the processor, a cache coupled to the processor and the memory and an installation cache coupled to the processor and the memory. The system is configured to load data from the memory into the installation cache and the cache (simultaneously or serially) and return data from the installation cache to the processor when the data has not completely loaded into the cache.