发明授权
- 专利标题: Snapshot interface operations
- 专利标题(中): 快照界面操作
-
申请号: US11017332申请日: 2004-12-20
-
公开(公告)号: US08364849B2公开(公告)日: 2013-01-29
- 发明人: Piyush Chaudhary , Jason E. Goscinski , Rama K. Govindaraju , Leonard W. Helmer, Jr. , Peter H. Hochschild , Deryck X. Hong , John S. Houston , Jang-Soo Lee , Steven J. Martin , Yuqing Zhu
- 申请人: Piyush Chaudhary , Jason E. Goscinski , Rama K. Govindaraju , Leonard W. Helmer, Jr. , Peter H. Hochschild , Deryck X. Hong , John S. Houston , Jang-Soo Lee , Steven J. Martin , Yuqing Zhu
- 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
- 代理机构: Heslin Rothenberg Farley & Mesiti P C
- 代理商 Steven Chiu, Esq.; Kevin P. Radigan, Esq.
- 主分类号: G06F15/16
- IPC分类号: G06F15/16
摘要:
In a multinode data processing system in which the nodes communicate with one another via communication adapters over a network or switch, the adapters are provided with a dual register mechanism for tracking microcode task status. Upon the issuance of a disruptive command that requires attention from one of the nodes, the task status maintained in one register is copied to the snapshot register. As tasks within the adapter are completed, both registers are updated, thus providing a mechanism for the nodes to determine that all tasks active at the time of the disruptive command have completed. This means that the nodes now have a mechanism for determining, as soon as possible, that all tasks that are active when a disruptive command occurs have completed, thus allowing the data processing node to perform such operations as releasing system memory that is associated with the disruptive command, thus eliminating temporal overhead that can affect performance.
公开/授权文献
- US20060059282A1 Snapshot interface operations 公开/授权日:2006-03-16