公开(公告)号：US20160224375A1

公开(公告)日：2016-08-04

申请号：US14751887

申请日：2015-06-26

Applicant: MediaTek Inc.

Inventor： Mong-Ling CHIAO ,  Pokun TSENG

IPC: G06F9/48

CPC classification number: G06F9/4843 ,  G06F11/3476 ,  G06F11/348 ,  G06F2201/88 ,  G06F2209/508

Abstract: Computer system including storage unit and processing unit including performance monitoring unit (PMU) for performance monitoring on tasks is provided. Processing unit is configured to provide a callback function at location at which a task switch is being performed, reset a counter for external access counting of PMU when first task switch which is to switch execution of tasks to first task occurs, read counted value from counter and record read value into a log of storage unit as record of first task when second task switch which is to switch execution of tasks from first task to second task occurs, and reset counter for second task after log is generated. Records of first task in log within a predetermined time period are summed to analyze performance of first task within predetermined time period so as to determine performance of external access of first task for specific event.

Abstract translation: 提供包括存储单元和处理单元在内的计算机系统，包括用于性能监视任务的性能监控单元（PMU）。 处理单元被配置为在执行任务切换的位置处提供回调函数，当第一个任务切换执行任务到第一个任务时，复位用于PMU的外部访问计数的计数器，从计数器读取计数值 并将第二任务切换到将第一任务切换到第二任务的第二任务切换时，将读取的值作为第一任务的记录记录在存储单元的日志中，并且生成日志后，对第二任务进行复位计数。 将在预定时间段内的日志中的第一任务的记录相加以分析在预定时间段内的第一任务的性能，以便确定特定事件的第一任务的外部访问的性能。