Cache management system
First Claim
1. A system comprising:
- a database storing a set of database assets;
a database server coupled to the database server;
a client computer coupled to the database server via a network and operable to retrieve database assets from the database server, the client computer comprising;
a processor;
a computer readable memory coupled to said processor and storing a cache manager, said computer readable storage comprising;
a cache maintained by said cache manager and containing cached digital assets,wherein said cache manager is operable to store received database assets in the cache as cached digital assets and to poll said cached digital assets at different polling frequencies based upon indications of their activities,wherein said computer readable memory further comprises one or more file lists maintained by said cache manager and containing entries associated with said cached digital assets, wherein said one or more file lists correspond to polling of said cached digital assets at said different polling frequencies,wherein said cache manager is operable to determine when a cached digital asset was last accessed or modified and determine whether an entry associated with said cached digital asset is to be promoted to a first file list corresponding to a first polling frequency or demoted to a second file list corresponding to a second polling frequency, wherein said first polling frequency is higher than said second polling frequency.
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Accused Products
Abstract
Embodiments disclosed herein provide a cache management system comprising a cache and a cache manager that can poll cached assets at different frequencies based on their relative activity status and independent of other applications. In one embodiment, the cache manager may maintain one or more lists, each corresponding to a polling layer associated with a particular polling schedule or frequency. Cached assets may be added to or removed from a list or they may be promoted or demoted to a different list, thereby changing their polling frequency. By polling less active files at a lower frequency than more active files, significant system resources can be saved, thereby increasing overall system speed and performance. Additionally, because a cache manager according to embodiments disclosed herein does not require detailed contextual information about the files that it is managing, such a cache manager can be easily implemented with any cache.
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Citations
15 Claims
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1. A system comprising:
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a database storing a set of database assets; a database server coupled to the database server; a client computer coupled to the database server via a network and operable to retrieve database assets from the database server, the client computer comprising; a processor; a computer readable memory coupled to said processor and storing a cache manager, said computer readable storage comprising; a cache maintained by said cache manager and containing cached digital assets, wherein said cache manager is operable to store received database assets in the cache as cached digital assets and to poll said cached digital assets at different polling frequencies based upon indications of their activities, wherein said computer readable memory further comprises one or more file lists maintained by said cache manager and containing entries associated with said cached digital assets, wherein said one or more file lists correspond to polling of said cached digital assets at said different polling frequencies, wherein said cache manager is operable to determine when a cached digital asset was last accessed or modified and determine whether an entry associated with said cached digital asset is to be promoted to a first file list corresponding to a first polling frequency or demoted to a second file list corresponding to a second polling frequency, wherein said first polling frequency is higher than said second polling frequency. - View Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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receiving at a client computer one or more database assets from a database server;
storing the one or more database assets as cached digital assets in a computer readable memory having plurality of polling layers of the client computer;polling cached digital assets at different frequencies, wherein each cached digital asset is polled with a frequency selected based on a level of activity associated with the cached digital asset; and after polling a cached digital asset, changing or maintaining status of said cached digital asset accordingly, wherein changing said status of said cached digital asset moves said cached digital asset between a first polling layer and a second polling layer, wherein said first polling layer corresponds to a first polling frequency, wherein said second polling layer corresponds to a second polling frequency, and wherein said first polling frequency is higher than said second polling frequency. - View Dependent Claims (7, 8)
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9. A system for managing a cache comprising:
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a database server coupled to a database storing one or more database assets; a client computer coupled to the database server by a network, the client computer operable to; request a database asset from the database server; store the database asset in a memory at the client computer as a cached asset; assign the cached asset a first status; poll the cached asset according to a first schedule corresponding to the first status and assign the cached asset a second status if the cached asset has not been active within a first period of time; poll the cached asset according to a second schedule corresponding to the second status, wherein polling according to the first schedule occurs at a greater frequency than polling according to the second schedule. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification