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Intel Architectural LBR Support Going Into Linux 5.9

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  • Intel Architectural LBR Support Going Into Linux 5.9

    Phoronix: Intel Architectural LBR Support Going Into Linux 5.9

    Intel CPUs have long supported LBR for last branch records as a means of recording the branches to which software has taken along with exposing other control flow information. This has relied upon model-specific registers while with future Intel CPUs this is being folded into a more universal CPU architectural feature. Support for Intel "Arch LBR" is set to come later this year with the Linux 5.9 kernel...

    http://www.phoronix.com/scan.php?pag...ural-LBR-Linux
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