Summary
How to check if an Intel® Xeon® Processor supports Last Branch Record (LBR)
Description
How to tell if an Intel Xeon Processor supports Last Branch Record (LBR)
Resolution
Intel® Xeon® Processors support Last Branch Record (LBR) although the number of MSRs (model specific registers) in the LBR stack and the valid range of TOS (top of stack) pointer value can vary between processor families. For further details, refer to the LBR Stack section in the Intel® Software Developer Manual (SDM).
| Note | The Intel support website does not provide software programming support. If further help is needed, use one of the community forums on the Intel® Developer Zone website. such as the Intel® ISA Extensions forum or Software Tuning, Performance Optimization & Platform Monitoring forum. |