公开(公告)号：US20140149078A1

公开(公告)日：2014-05-29

申请号：US14087543

申请日：2013-11-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： MIN-JU LEE ,  Young-Lak Kim ,  Bernhard Egger ,  Jae-Jin Lee ,  Hong-Gyu Kim ,  Hong-June Kim

IPC: G06F11/34

CPC classification number: G06F11/3409 ,  G06F11/348 ,  G06F2201/86 ,  G06F2201/88 ,  G06F2201/885

Abstract: A performance measurement unit includes an event counter configured to record a counter value indicating a number of events occurring in a processor core, and a shadowed event counter configured to copy the counter value recorded in the event counter to the shadowed event counter. The performance measurement unit is configured to determine a number of effective events occurring in the processor core using the event counter and the shadowed event counter. Effective events correspond to events occurring when a selected process is executed.

Abstract translation: 性能测量单元包括：事件计数器，被配置为记录指示处理器核心中发生的事件的数量的计数器值;以及被配置为将记录在事件计数器中的计数器值复制到阴影事件计数器的阴影事件计数器。 性能测量单元被配置为使用事件计数器和阴影事件计数器来确定在处理器核心中发生的有效事件的数量。 有效事件对应于执行所选进程时发生的事件。

公开(公告)号：US09959191B2

公开(公告)日：2018-05-01

申请号：US14087667

申请日：2013-11-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min-Ju Lee ,  Bernhard Egger ,  Jae-jin Lee ,  Young-Lak Kim ,  Hong-Gyu Kim ,  Hong-June Kim

IPC: G06F9/44 ,  G06F11/34

CPC classification number: G06F11/3466 ,  G06F11/3409 ,  G06F11/348 ,  G06F2201/86 ,  G06F2201/88

Abstract: A dynamic library profiling method and a dynamic library profiling system including writing a first break point instruction at a start address of a dynamic library function, recording a first event count value that is a process performance management unit (PMU) count when a target process executes the first break point instruction, writing a second break point instruction to a return address of the dynamic library function, and calculating a PMU count generated in a processor core while the dynamic library function is executed, by comparing the recorded first event count value with a second event count value that is a process PMU count when the target process executes the second break point instruction, wherein the process PMU count is a cumulative value of PMU counts generated in the processor core while the target process is executed.