Method and apparatus to trace and correlate data trace and instruction trace for out-of-order processors

Method and apparatus to trace and correlate data trace and instruction trace for out-of-order processors

In a data processing system, a marked bit is used to identify a data access instruction throughout the pipeline to indicate that the instruction meets user-specified criteria (e.g., a meets a data address range of interest). Based on the marked bit, an in-order program correlation message is generat...

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Hauptverfasser: Xu, Zheng, Bhaskaran, Suraj, Bruce, Klas M, Nearing, Jason T, Rawlins, Paul B, Smittle, Matt B, Snyder, Michael D
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Bhaskaran, Suraj
Bruce, Klas M
Nearing, Jason T
Rawlins, Paul B
Smittle, Matt B
Snyder, Michael D
description In a data processing system, a marked bit is used to identify a data access instruction throughout the pipeline to indicate that the instruction meets user-specified criteria (e.g., a meets a data address range of interest). Based on the marked bit, an in-order program correlation message is generated which indicates when the data access instruction occurs relative to the instruction stream. The marked bit is also used to generate an in-order data trace message. As a result, the trace streams including only data access instructions meeting user-specified criteria may be post-processed and correlated precisely.
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title Method and apparatus to trace and correlate data trace and instruction trace for out-of-order processors
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