Invention Grant
- Patent Title: Performance counter inheritance
- Patent Title (中): 性能计数器继承
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Application No.: US12636674Application Date: 2009-12-11
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Publication No.: US08935703B2Publication Date: 2015-01-13
- Inventor: Ingo Molnar , Thomas Gleixner
- Applicant: Ingo Molnar , Thomas Gleixner
- Applicant Address: US NC Raleigh
- Assignee: Red Hat, Inc.
- Current Assignee: Red Hat, Inc.
- Current Assignee Address: US NC Raleigh
- Agency: Lowenstein Sandler LLP
- Main IPC: G06F9/46
- IPC: G06F9/46

Abstract:
A system for providing performance counter inheritance includes an operating system that receives a request of a first application to monitor performance of a second application, the request identifying an event to monitor during the execution of a task associated with the second application. The operating system causes a task counter corresponding to the event to be activated, and automatically activates a child task counter for each child task upon receiving a notification that execution of a corresponding child task is starting. Further, the operating system adds a value of each child task counter to a value of the task counter to determine a total counter value for the task, and provides the total counter value of the task to the first application.
Public/Granted literature
- US20110145829A1 PERFORMANCE COUNTER INHERITANCE Public/Granted day:2011-06-16
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