Fast path for performing data operations
First Claim
1. A method executed in a computer system for processing a data operation comprising:
- determining if said data operation has at least one predetermined criteria characterizing said data operation as being a commonly performed non-complex data operation using a primitive operation; and
routing said data operation to a fast path for processing if said data operation has said at least one predetermined criteria, and routing said data operation to a general control path for processing otherwise.
3 Assignments
0 Petitions
Accused Products
Abstract
Described are techniques used in a computer system for handling data operations to storage devices. A switching fabric includes one or more fast paths for handling lightweight, common data operations and at least one control path for handling other data operations. A control path manages one or more fast paths. The fast path and the control path are utilized in mapping virtual to physical addresses using mapping tables. The mapping tables include an extent table of one or more entries corresponding to varying address ranges. The size of an extent may be changed dynamically in accordance with a corresponding state change of physical storage. The fast path may cache only portions of the extent table as needed in accordance with a caching technique. The fast path may cache a subset of the extent table stored within the control path. A set of primitives may be used in performing data operations. A locking mechanism is described for controlling access to data shared by the control paths.
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Citations
18 Claims
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1. A method executed in a computer system for processing a data operation comprising:
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determining if said data operation has at least one predetermined criteria characterizing said data operation as being a commonly performed non-complex data operation using a primitive operation; and routing said data operation to a fast path for processing if said data operation has said at least one predetermined criteria, and routing said data operation to a general control path for processing otherwise. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer program product tangibly embodied a computer-readable medium, for processing a data operation, the computer program product including instructions being operable to cause data processing apparatus to:
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determine if said data operation has at least one predetermined criteria characterizing said data operation as being a commonly performed non-complex data operation using a primitive operation; and route said data operation to a fast path for processing if said data operation has said at least one predetermined criteria, and routing said data operation to a general control path for processing otherwise. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification