| 摘要 |
The invention allows evaluation of the performance of the hardware and software of a computer system (level of test activity, level of processor activity, interdependence between tasks, hardware response time etc.). The device according to the invention is an entirely-programmable hardware device which is connected, on the one hand, at A5 onto the bus of the system to be investigated, without altering its operation, and, on the other hand, at A1 onto an external computer, which stores the information originating from the invention, and analyses it, with a view to evaluating the performance of the system to be investigated. The device which is the subject of this invention consists of a set of functions denoted A to S. The selection function A routes, on the intermediate bus via A1, part of the information originating from the system to be investigated. The input and output function S provides the dialogue between the functions of the device and the external computer. The map B function routes the information from the intermediate bus onto the read bus situated at B5. The clock function C allows measurement of time intervals delimited by the appearance of two events which originate from the intermediate bus. The event counting functions D to R make it possible to log the appearance of events present on the intermediate bus. <IMAGE> |
