Information processing system
OwnerIchiki Honma, Hiroshi Kurokawa +2inventors
InventorsICHIKI HONMA, HIROSHI KUROKAWA, TOSHIAKI KAWAMURA, EIJI NOMURA
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Abstract
An information processing system and a multi-level hierarchical storage device for use in the information processing system having a plurality of instruction processors and a plurality of main storage devices. The multi-level hierarchical storage device includes a first-cache storage device of a write-through type provided for each instruction processor, a second-cache storage device of a write-back type provided for each main storage device, and a third-cache storage device of a write-through type provided between the first-cache storage device and the second-cache storage device.
Claims36
A multi-level hierarchical storage device for use in an information processing system having a plurality of instruction processors and a plurality of main storage devices, said multi-level hierarchical storage device comprising:
- a first-cache storage device of a write-through type provided for each instruction processor;
- a second-cache storage device of a write-back type provided for each main storage device;
- and
- a third-cache storage device of a write-through type provided between said first-cache storage device and said second-cache storage device.
An information processing system comprising:
- a plurality of main storage devices;
- a plurality of instruction processors which read/write data to/from said main storage devices;
- and
- a plurality of multi-level hierarchical storage device;
- wherein each multi-level hierarchical storage device comprises:
- a first-cache storage device of a write-through type provided for one of said instruction processors,
- a second-cache storage device of a write-back type provided for one of said main storage devices, and
- a third-cache storage device of a write-through type provided between said first-cache storage device and said second-cache storage device.
An information processing system comprising:
- at least one instruction processor;
- and
- at least one storage controller,
- wherein said instruction processor is provided with plural hierarchical levels of cache storage devices, each being of a write-through type.
An information processing system comprising:
- at least one instruction processor;
- and
- at least one storage controller,
- wherein said storage controller is provided with plural hierarchical levels of cache storage devices, each being of a write-through type.
An information processing system comprising:
- a plurality of main storage devices;
- a plurality of instruction processors which load/store data from/to said main storage devices;
- and
- a plurality of multi-level hierarchical storage devices, each level of each multi-level hierarchical storage device being of a write-through type,
- wherein when an instruction processor carries out a load instruction for a region of a main storage device and the size of the region of the main storage device does not exceed a capacity of each level of a multi-level hierarchical storage device, and execution time of said load instruction is constant for each level of said multi-level hierarchical storage device, multi-level hierarchical storage device being provided between said instruction processor and said main storage device.
An information processing system comprising:
- a plurality of main storage devices;
- a plurality of instruction processors which load/store data from/to said main storage devices;
- and
- a plurality of multi-level hierarchical storage devices, each level of each multi-level hierarchical storage device being of a write-through type,
- wherein when an instruction processor carries out a store instruction for storing data to a location in a main storage device an execution time of said store instruction is constant for each level of a multi-level hierarchical storage device said multi-level hierarchical storage device being provided between said instruction processor and said main storage device.
Dependencies are inferred from the claim text.