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公开(公告)号:US20140380027A1
公开(公告)日:2014-12-25
申请号:US13922421
申请日:2013-06-20
申请人: Ahmad Yasin , Michael W. Chynoweth , Ofer Levy , Jason W. Brandt , Angela Schmid
发明人: Ahmad Yasin , Michael W. Chynoweth , Ofer Levy , Jason W. Brandt , Angela Schmid
IPC分类号: G06F9/30
CPC分类号: G06F9/3806 , G06F9/30058 , G06F9/30098 , G06F11/3419 , G06F11/348 , G06F2201/865 , G06F2201/88
摘要: A processing device implementing an elapsed cycle timer in last branch records (LBRs) is disclosed. A processing device of the disclosure includes a last branch record (LBR) counter to iterate with each cycle of the processing device and an LBR structure communicably coupled to the LBR counter. The LBR structure comprises a plurality of LBR entries. Furthermore, an LBR entry of the plurality of LBR entries comprises an address instruction pointer (IP) of a branch instruction executed by the processing device, an address IP of a target of the branch instruction, and an elapsed time field that stores a value of the LBR counter when the LBR entry is created.
摘要翻译: 公开了一种在最后的分支记录(LBR)中实现经过周期定时器的处理装置。 本公开的处理装置包括与处理装置的每个周期重复的最后一个分支记录(LBR)计数器和可通信地耦合到LBR计数器的LBR结构。 LBR结构包括多个LBR条目。 此外,多个LBR条目的LBR条目包括由处理装置执行的分支指令的地址指令指针(IP),分支指令的目标的地址IP以及存储分支指令的值的经过时间字段 当创建LBR条目时,LBR计数器。