Benchmarking correlated stream processing systems

An information processing system for benchmarking a stream processing system, the information processing system comprising:

• a test stream generator for generating a plurality of correlated test streams, wherein each test stream in the plurality of correlated test streams includes a semantically related embedded data set;
• a transmitter for providing the plurality of correlated test streams to at least one stream processing system;
• a summary generator for generating a summary of each semantically related embedded data set:
• a memory for storing a copies of each summary;
• a common identifier generator for generating a common identifier associated with each test stream in the plurality of correlated test streams and for embedding the common identifier within each stream in the plurality of correlated test streams, wherein the common identifier is transparent to the at least one stream processing system so as not to affect the set of correlation results, and wherein the common identifier uniquely identifies the plurality of correlated test streams;
• an extractor for extracting the common identifier from the output data set generated by the stream processing system;
• a comparator for comparing at least one of the copies of the summary of the semantically related embedded data and the common identifier to an output data set including a set of zero or more correlation results generated by the stream processing system;
• and
• wherein the comparator compares a copy of each summary which has been stored to the common identifiers extracted from an output data set generated by the stream processing system.