发明名称 |
SYSTEM AND METHOD FOR DYNAMICALLY CONTROLLING CACHE MANAGEMENT. |
摘要 |
<p>A cache management system and method monitors and controls the contents of cache memory (12) coupled to at least one host (22a) and at least one data storage device (18a). A cache indexer (16) maintains a current index (25) of data elements which are stored in cache memory (12). A sequential data access indicator (30), responsive to the cache index (16)and to a user selectable sequential data access threshold, determines that a sequential data access is in progress for a given process and provides an indication of the same. The system and method allocate a micro-cache memory (12) to any process performing a sequential data access. In response to the indication of a sequential data access in progress and to a user selectable maximum number of data elements to be prefetched, a data retrieval requestor requests retrieval of up to the selected maximum number of data elements from a data storage device (18a). A user selectable number of sequential data elements determines when previously used micro-cache memory locations will be overwritten. A method of dynamically monitoring and adjusting cache management parameters is also disclosed.</p> |
申请公布号 |
EP0650616(A4) |
申请公布日期 |
1997.01.29 |
申请号 |
EP19930915190 |
申请日期 |
1993.06.03 |
申请人 |
EMC CORPORATION |
发明人 |
YANAI, MOSHE;VISHLITZKY, NATAN;ALTERESCU, BRUNO;CASTEL, DANIEL |
分类号 |
G06F12/08;G06F12/12;(IPC1-7):G06F12/08 |
主分类号 |
G06F12/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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