Abstract: A performance management system leverages an iterative process to provide performance reports, with reduced computing resources. In response to a request for a performance report, a respective subset of performance data records may be received from each of a plurality of sources. It may then be determined whether additional performance data records are to be requested from the plurality of sources for the report. The received data may be processed and the resultant report may be outputted. For example, the iterative process may be applied to generate a top-n report based on network flow performance data in a computer information system.

Abstract: A performance management system, having a peer-to-peer architecture, enables performance transparency in computer information systems, providing granular performance data and scalability. Peer appliances in a computer information system collect performance data. When a user requests a performance report, an originating peer appliance may determine which peer appliances contain the data required for the report and what data processing, if any, is required. The originating peer appliance may send requests indicating what data and what data manipulation processing is required. Each of the receiving peer appliances (including the originating peer appliance) may perform its own portion of the data processing. The originating peer appliance may receive resultant data from the peer appliances (including itself) and combine the resultant data into the requested report for the user.