Method and apparatus for obtaining a call stack to an event of interest and analyzing the same
US9582275B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | May 31, 2011 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Feb 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3476
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.