发明申请
- 专利标题: ASSOCIATING PROCESS PRIORITY WITH I/O QUEUING
- 专利标题(中): 与I / O QUEUING相关的优先级
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申请号: US12240190申请日: 2008-09-29
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公开(公告)号: US20100082855A1公开(公告)日: 2010-04-01
- 发明人: Jos Accapadi , Andrew Dunshea , Vandana Mallempati , Agustin Mena, III
- 申请人: Jos Accapadi , Andrew Dunshea , Vandana Mallempati , Agustin Mena, III
- 申请人地址: US NY Armonk
- 专利权人: Internatinal Business Machines Corporation
- 当前专利权人: Internatinal Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 主分类号: G06F13/364
- IPC分类号: G06F13/364
摘要:
Input/output (I/O) requests generated by processes are typically stored in I/O queues. Because the queued I/O requests may not be associated with the processes that generated them, changing a process' priority may not affect the priority of the I/O requests generated by the process. Therefore, after the process' priority has been increased, it may be forced to wait for an I/O handler to service its I/O request, which may be stuck behind an I/O request generated by a lower priority process. Functionality can be implemented to associate the processes' priorities with the I/O requests generated by the processes. Also, reordering the queued I/O requests to reflect changes in the processes' priorities can ensure that the I/O requests from high priority processes are serviced before the I/O requests from low priority processes. This can ensure efficient processing and lower wait times for high priority processes.
公开/授权文献
- US09262357B2 Associating process priority with I/O queuing 公开/授权日:2016-02-16