发明名称 |
Implementing feedback directed deferral of nonessential DASD operations |
摘要 |
A method, apparatus and computer program product are provided for implementing feedback directed deferral on nonessential direct access storage device (DASD) operations. A kernel DASD I/O manager maintains a queue depth count value for a DASD unit and maintains a busy flag that indicates when the queue depth count value is greater than a predefined threshold. The kernel DASD I/O manager defers optional operations responsive to the busy flag being set for the DASD unit.
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申请公布号 |
US7444466(B2) |
申请公布日期 |
2008.10.28 |
申请号 |
US20060360349 |
申请日期 |
2006.02.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CRAVENS LARRY J.;KURTZ JAY PAUL;LINN KENNETH GERALD;NELSON GLEN W.;VOSSEN KENNETH CHARLES;WARD DONALD L. |
分类号 |
G06F12/00;G06F13/00;G06F13/28 |
主分类号 |
G06F12/00 |
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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