an application server, including computer readable storage media comprising:

software, when executed by a computer performs an operation of:

collecting a plurality of realtime queries requiring execution;

software, when executed by a computer performs an operation of:

providing an ordered vector space of data attributes;

providing, from available data, a query data attribute extent vector space;

executing a plurality of predefined queries and providing a query signature for each query, each query signature including a data attribute component;

executing each query of the plurality of predefined queries without using cache and recording an uncached execution time;

executing each query of the plurality of predefined queries using cache and recording a cached execution time;

creating, for each query, a time estimate coefficient and estimated time for query coefficient;

calculating, for each query, a similarity score with respect to each other query; and

providing metrics including the similarity score for each one of the plurality of predefined queries; and

software, when executed by a computer performs an operation of:

ordering realtime queries based on said metrics of corresponding similar predefined queries to improve performance of said system.