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The "mba_MBps" mount option provides an alternate method to control memory bandwidth. Instead of specifying allowable bandwidth as a percentage of maximum possible, the user provides a MiB/s limit value. In preparation to allow the user to pick the memory bandwidth monitoring event used as input to the feedback loop, provide a file in each CTRL_MON group directory that shows the event currently in use. Note that this file is only visible when the "mba_MBps" mount option is in use. Suggested-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Link: https://lore.kernel.org/r/20241206163148.83828-7-tony.luck@intel.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.