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Intel Performance Limit Reasons For Linux To Report Why Your CPU Is Downclocking
Intel Performance Limit Reasons (PLR) can indicate why your CPU is downclocking / limited to a lower performance limit for a given core or die
With a new set of patches today to the Linux kernel mailing list, Intel PLR hardware performance event reporting is being wired up. The information is they conveyed to user-space via DebugFS for administrators to tap into directly or for other applications wanting to know why their CPU performance may be limited. About The AuthorMichael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience.
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