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sysfs-devices-system-cpu

sysfs-devices-system-cpu 1.2 KB
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  1. What:		/sys/devices/system/cpu/
    2. 

  2. Date:		pre-git history
    3. 

  3. Contact:	Linux kernel mailing list <linux-kernel@vger.kernel.org>
    4. 

  4. Description:
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  5. 		A collection of both global and individual CPU attributes
    6. 

  6. 

  7. 		Individual CPU attributes are contained in subdirectories
    8. 

  8. 		named by the kernel's logical CPU number, e.g.:
    9. 

  9. 

  10. 		/sys/devices/system/cpu/cpu#/
    11. 

  11. 

  12. 

  13. What:      /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X
    14. 

  14. Date:      August 2008
    15. 

  15. KernelVersion:	2.6.27
    16. 

  16. Contact:	mark.langsdorf@amd.com
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  17. Description:	These files exist in every cpu's cache index directories.
    18. 

  18. 		There are currently 2 cache_disable_# files in each
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  19. 		directory.  Reading from these files on a supported
    20. 

  20. 		processor will return that cache disable index value
    21. 

  21. 		for that processor and node.  Writing to one of these
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  22. 		files will cause the specificed cache index to be disabled.
    23. 

  23. 

  24. 		Currently, only AMD Family 10h Processors support cache index
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  25. 		disable, and only for their L3 caches.  See the BIOS and
    26. 

  26. 		Kernel Developer's Guide at
    27. 

  27. 		http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31116-Public-GH-BKDG_3.20_2-4-09.pdf
    28. 

  28. 		for formatting information and other details on the
    29. 

  29. 		cache index disable.
    30. 

  30. Users:    joachim.deguara@amd.com
    31.