发明授权
- 专利标题: High performance synchronization of resource allocation in a logically-partitioned system
- 专利标题(中): 逻辑分区系统中资源分配的高性能同步
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申请号: US10422426申请日: 2003-04-24
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公开(公告)号: US07139855B2公开(公告)日: 2006-11-21
- 发明人: William Joseph Armstrong , Naresh Nayar
- 申请人: William Joseph Armstrong , Naresh Nayar
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理商 Owen J. Gamon
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
A method, apparatus, system, and signal-bearing medium that in an embodiment set a resource indicator to indicate that a processor is using a resource in a logically-partitioned electronic device, determine whether a current partition in the logically-partitioned electronic device owns the resource, and clear the resource indicator after the processor is done using the resource. When a partition gives up ownership of a resource, a resource ownership state is changed to indicate that the partition does not own a resource, and the partition waits to continue executing until other processors have cleared their respective resource indicators. In an embodiment, the resource indicator is in a cache line that is local to the processor, which allows resources to be dynamically allocated with improved performance.
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