Method and apparatus for obtaining a call stack to an event of interest and analyzing the same

Method and apparatus for obtaining a call stack to an event of interest and analyzing the same

In one embodiment, a processor includes a performance monitor including a last branch record (LBR) stack to store a call stack to an event of interest, where the call stack is collected responsive to a trigger for the event. The processor further includes logic to control the LBR stack to operate in...

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Hauptverfasser: Irelan, Peggy J, Chynoweth, Michael W, Merten, Matthew C, Knauth, Laura A, Kim, Seung-Woo, Bratanov, Stanislav
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator Irelan, Peggy J
Chynoweth, Michael W
Merten, Matthew C
Knauth, Laura A
Kim, Seung-Woo
Bratanov, Stanislav
description In one embodiment, a processor includes a performance monitor including a last branch record (LBR) stack to store a call stack to an event of interest, where the call stack is collected responsive to a trigger for the event. The processor further includes logic to control the LBR stack to operate in a call stack mode such that an entry to a call instruction for a leaf function is cleared on return from the leaf function. Other embodiments are described and claimed.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Method and apparatus for obtaining a call stack to an event of interest and analyzing the same
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