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System and method of improving task switching and page translation performance utilizing a multilevel translation lookaside buffer
System and method of improving task switching and page translation performance utilizing a multilevel translation lookaside buffer
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机译:利用多级翻译后备缓冲器提高任务切换和页面翻译性能的系统和方法
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摘要
A system and method of improved task switching in a data processing system. First, a first-level cache memory casts out an invalidated page table entry and an associated first page directory base address to a second-level cache memory. Then, the second-level cache memory determines if a task switch has occurred. If a task switch has not occurred, first-level cache memory sends the invalidated page table entry to a current running task directory. If a task switch has occurred, first-level cache memory loads from the second-level cache directory a collection of page table entries related to a new task to enable improved task switching without requiring access to a page table stored in main memory to retrieve the collection of page table entries.
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