发明名称 |
Method and apparatus for implementing command queue ordering with benefit determination of prefetch operations |
摘要 |
A method and apparatus are provided for implementing command queue ordering with benefit determination of a prefetch operation. For each command in a hard disk drive command queue, a rotational position optimization (RPO) score is calculated. A prefetch benefit is calculated for each command in the hard disk drive command queue within a working partition. The RPO score is modified utilizing the calculated prefetch benefit for the commands in the hard disk drive command queue within the working partition. A best RPO score is identified to select a next command in the hard disk drive command queue to execute.
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申请公布号 |
US6877070(B2) |
申请公布日期 |
2005.04.05 |
申请号 |
US20020201497 |
申请日期 |
2002.07.23 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS, B.V. |
发明人 |
ESPESETH ADAM MICHAEL;HALL DAVID ROBISON |
分类号 |
G06F3/06;G06F12/08;G11B5/55;(IPC1-7):G06F12/00 |
主分类号 |
G06F3/06 |
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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