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8da2b938eb
To change the resources allocated to a large group of tasks, such as an application container, a container manager must write all of the tasks' IDs into the tasks file interface of the new control group. This is challenging when the container's task list is always changing. In addition, if the container manager is using monitoring groups to separately track the bandwidth of containers assigned to the same control group, when moving a container, it must first move the container's tasks to the default monitoring group of the new control group before it can move these tasks into the container's replacement monitoring group under the destination control group. This is undesirable because it makes bandwidth usage during the move unattributable to the correct tasks and resets monitoring event counters and cache usage information for the group. Implement the rename operation only for resctrlfs monitor groups to enable users to move a monitoring group from one control group to another. This effects a change in resources allocated to all the tasks in the monitoring group while otherwise leaving the monitoring data intact. Signed-off-by: Peter Newman <peternewman@google.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/20230419125015.693566-3-peternewman@google.com |
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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 Restructured Text 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.