Abstract: Provided are a system and method for implementing an incremental data comparison. The system includes: a synchronization T environment, a simulation F environment, a simulation tool, a memory database, a comparison tool and a result database. The T environment includes a synchronization environment core application, a traditional commercial database, an incremental synchronization tool and a synchronization environment distributed database. The F environment includes a simulation environment core application and a simulation environment distributed database. The simulation tool is configured to play back a T environment service and an F environment service. The memory database is configured to store a mapping relationship between message values of the T and F environment. The comparison tool is configured to compare data in the T and F environment according to the mapping relationship between the message values.

Abstract: Systems and methods are disclosed for testing performance of communications interfaces of computing devices. An electronic device tester is disclosed including a downstream communication interface configured to communicatively couple the electronic device tester to a device under test (DUT), wherein the electronic device tester is configured to identify a first internal hub of the DUT over the downstream communication interface, identify a second hub device connected to the DUT over a downstream interface port of the DUT, verify performance of the downstream interface port of the DUT at a first data rate by receiving data over a first downstream port of the second hub device via the downstream interface port of the DUT, and verify performance of the downstream interface port of the DUT at a second data rate by receiving data over a second downstream port of the second hub device via the downstream interface port of the DUT.