Abstract: A hybrid CPU system wherein the plurality of processors forming the hybrid system are initially undifferentiated by type or class. Responsive to the sampling of the threads of a received and loaded computer application to be executed, the function of at least one of the processors is changed so that the threads of the sampled application may be most effectively processed/run on the hybrid system.

Abstract: A hybrid CPU system wherein the plurality of processors forming the hybrid system are initially undifferentiated by type or class. Responsive to the sampling of the threads of a received and loaded computer application to be executed, the function of at least one of the processors is changed so that the threads of the sampled application may be most effectively processed/run on the hybrid system.

Abstract: Standalone software performance optimizer systems for hybrid systems include a hybrid system having a plurality of processors, memory operably connected to the processors, an operating system including a dispatcher loaded into the memory, a multithreaded application read into the memory, and a static performance analysis program loaded into the memory; wherein the static performance analysis program instructs at least one processor to perform static performance analysis on each of the threads, the static performance analysis program instructs at least one processor to assign each thread to a CPU class based on the static performance analysis, and the static performance analysis program instructs at least one processor to store each thread's CPU class.

Abstract: A method for recovering lost cache capacity in a multi core chip having at least one defective core including identifying the cores contained in the chip that are viable cores and identifying at least one core contained in the chip that is defective. The method also includes identifying the cache memory local to the defective core and determining a redistribution of the cache resources local to the at least one defective core among the viable cores. The method also features dividing the cache memory local to the at least one defective core according to the redistribution determination and determining the address information associated with the cache memory local to the at least one defective core. The method also features providing the address information associated with the cache memory associated with the defective core to at least one of the viable cores, facilitating the supplementation of the cache memory local to the viable cores with the cache memory associated with the defective core.

Abstract: Sharing a kernel of an operating system among logical partitions, including installing in a partition manager a kernel of a type used by a plurality of logical partitions; installing in the partition manager generic data structures specifying computer resources assigned to each of the plurality of logical partitions; and providing, by the kernel to the logical partitions, kernel services in dependence upon the generic data structures.

Abstract: In view of the foregoing, the shortcomings of the prior art cache optimization techniques, the present invention provides an improved method, system, and computer program product that can optimize cache utilization. In one embodiment, an application requests a kernel cache map from a kernel service and the application receives the kernel. The application designs an optimum cache footprint for a data set from said application. The objects, advantages and features of the present invention will become apparent from the following detailed description. In one embodiment of the present invention, the application transmits a memory reallocation order to a memory manager. In one embodiment of the present invention, the step of the application transmitting a memory reallocation order to the memory manager further comprises the application transmitting a memory reallocation order containing the optimum cache footprint to the memory manager.

Abstract: The present invention provides an improved method, system, and computer program product that can optimize cache utilization. In one embodiment, a kernel service creates a storage map, and sending said storage map to an application. In one embodiment of the present invention, the step of the kernel service creating the storage map may further comprise the kernel service creating a cache map. In one embodiment of the present invention, the step of the kernel service creating the storage map may further comprise the kernel service creating an indication of one or more storage locations that have been allocated to store information for the application. In one embodiment of the present invention, the step of the kernel service creating the storage map may further comprise the kernel service creating the storage map in response to receiving a request for the storage map from the application.

Abstract: A method, apparatus, and computer instructions for transferring data. The data in a first partition is received within a memory region assigned to the first partition in the logical partitioned data processing system to form received data. The memory region is assigned to a second partition, in response to a determination that the received data is for the second partition. The second partition may then access the data in the memory region.