Abstract: A method and apparatus for providing power state information using in-band signaling are described. In one embodiment, an integrated circuit (IC) device comprises a controller operable to receive a command from a platform control bus, the command requesting data that is unrelated to information about a power state in which the IC resides; and control logic operable to obtain data for inclusion in a response to the command, wherein the controller is operable to send the response over a bus, the response containing at least a portion of the data responsive to the command and containing power state information for the IC.

Abstract: A photometric test system for LED luminaires. The system uses photodetective panels to detect and measure light. By placing an optical absorber layer with low reflectivity and low transmissivity over the photodetective panels, a detection surface which is also an absorber is achieved. This absorber reduces reflection of incident light from the device under test (DUT), and light reflected from the photodetective panels. A pinhole array can be conveniently used for this purpose. This enables the measurement area of the system to be essentially no larger than the emitting area of the DUT. A diffuser positioned between the absorber layer and the photodetective panels increases the accuracy of the system. Simulations and experimental results show that this system can measure total flux with an uncertainty of 4.3%. The demonstrated system is used in 2? geometry. The system measures total flux, color parameters (such as CCT, CRI, chromaticity) and flicker.

Abstract: A processing device implementing performance scalability prediction is disclosed. A processing device of the disclosure includes a first counter to increment with each cycle of the processing device in which threads of the processing device are active. The processing device further includes a second counter to increment with each cycle of the processing device in which execution units of the processing device are stalled for one of the threads, and an access request from the one of the threads to memory external to the processing device is pending.

Abstract: A method and apparatus for providing power state information using in-band signaling are described. In one embodiment, an integrated circuit (IC) device comprises a controller operable to receive a command from a platform control bus, the command requesting data that is unrelated to information about a power state in which the IC resides; and control logic operable to obtain data for inclusion in a response to the command, wherein the controller is operable to send the response over a bus, the response containing at least a portion of the data responsive to the command and containing power state information for the IC.

Abstract: A processing device implementing performance scalability prediction is disclosed. A processing device of the disclosure includes a first counter to increment with each cycle of the processing device in which threads of the processing device are active. The processing device further includes a second counter to increment with each cycle of the processing device in which execution units of the processing device are stalled for one of the threads, and an access request from the one of the threads to memory external to the processing device is pending.