摘要:
A method and system for enhancing performance of a bus in a data processing system is described. The method includes monitoring priority of processes in an operating system queue along with data flow through adapters coupled to the bus in a data processing system, determining if increased bus performance is desirable, and adjusting bus parameters to enhance the performance of the bus if increased bus performance is desirable.
摘要:
A method and apparatus of making a computer system using the peripheral component interconnect (PCI) bus architecture compatible with an Apple computer system are provided. In a preferred embodiment mechanism is used for dedicating interrupt request lines to each of a plurality of input/output (I/O) devices, a mechanism for providing an interrupt request from one of the plurality of I/O devices to a processor, and a mechanism for disabling an interrupt controller on the motherboard of the system (or onboard interrupt controller) so as to allow an interrupt controller residing on an Apple adapter to control the system. The interrupt controller on the Apple adapter contains an input for each of the various I/O adapters attached to the computer system and also provides a request line to the processor.
摘要:
According to one aspect of the present disclosure a method and technique for managing data transfer is disclosed. The method includes comparing, by a processor unit of a data processing system, data to be written to a memory subsystem to a stored data pattern and, responsive to determining that the data matches the stored data pattern, replacing the matching data with a pattern tag corresponding to the matching data pattern. The method also includes transmitting the pattern tag to the memory subsystem.
摘要:
A processor has multiple cores with each core having an associated function to support processor operations. The functions performed by the cores are selectively altered to improve processor operations by balancing the resources applied for each function. For example, each core comprises a field programmable array that is selectively and dynamically programmed to perform a function, such as a floating point function or a fixed point function, based on the number of operations that use each function. As another example, a processor is built with a greater number of cores than can be simultaneously powered, each core associated with a function, so that cores having functions with lower utilization are selectively powered down.
摘要:
According to one aspect of the present disclosure a method and technique for managing data transfer is disclosed. The method includes comparing, by a processor unit of a data processing system, data to be written to a memory subsystem to a stored data pattern and, responsive to determining that the data matches the stored data pattern, replacing the matching data with a pattern tag corresponding to the matching data pattern. The method also includes transmitting the pattern tag to the memory subsystem.
摘要:
A processor has multiple cores with each core having an associated function to support processor operations. The functions performed by the cores are selectively altered to improve processor operations by balancing the resources applied for each function. For example, each core comprises a field programmable array that is selectively and dynamically programmed to perform a function, such as a floating point function or a fixed point function, based on the number of operations that use each function. As another example, a processor is built with a greater number of cores than can be simultaneously powered, each core associated with a function, so that cores having functions with lower utilization are selectively powered down.
摘要:
The disclosed methodology and apparatus may control heat generation in a multi-core processor. In one embodiment, each processor core includes a temperature sensor that reports temperature information to a processor controller. If a particular processor core exceeds a predetermined temperature, the processor core disables that processor core to allow it to cool. The processor core enables the previously disabled processor when the previously disabled processor core cools sufficiently to a normal operating temperature. The disclosed multi-core processor may avoid undesirable hot spots that impact processor life.
摘要:
A method and apparatus for speculatively executing a single threaded program within a multi-core processor which includes identifying an idle core within the multi-core processor, performing a look ahead operation on the single thread instructions to identify speculative instructions within the single thread instructions, and allocating the idle core to execute the speculative instructions.
摘要:
A method for automatically initializing the operational settings of a system from information stored within a non-volatile storage of an integrated circuit so that the operational requirements of the integrated circuit, which may be a microprocessor, are met by the system when the system is operating. During manufacturing test, environmental requirements of the integrated circuit are determined and stored within the non-volatile storage of the integrated circuit. During system initialization, environmental control values such as required operating voltage and frequency and cooling requirements are determined from the test values, which are read from the integrated circuit. The values are read by an interface of the system from an interface of the integrated circuit. System settings are controlled by the values to provide the required operating environment and the values may be captured within the system for subsequent operations and initialization sequences.
摘要:
A method and apparatus for preventing unauthorized access to data stored in memory utilizing two programmable logic devices as front end interfaces for the memory device and the data processing device which is to utilize the memory device, respectively. The two programmable logic devices are complementary programmed such that the signal lines between the data processing device and the memory core and/or their timing are scrambled at the interface between the two programmable logic devices, but are properly ordered with the proper timing at the interface between the memory core and the first programmable logic device and the interface between the data processing device and the second programmable logic device.