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Diffstat (limited to 'Documentation/admin-guide/mm/damon/usage.rst')
| -rw-r--r-- | Documentation/admin-guide/mm/damon/usage.rst | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst index af6ffaea567b..9c67311a79d8 100644 --- a/Documentation/admin-guide/mm/damon/usage.rst +++ b/Documentation/admin-guide/mm/damon/usage.rst @@ -154,8 +154,13 @@ available monitoring operations set on the currently running kernel by reading list some or all of below keywords. - vaddr: Monitor virtual address spaces of specific processes + - fvaddr: Monitor fixed virtual address ranges - paddr: Monitor the physical address space of the system +Please refer to :ref:`regions sysfs directory <sysfs_regions>` for detailed +differences between the operations sets in terms of the monitoring target +regions. + You can set and get what type of monitoring operations DAMON will use for the context by writing one of the keywords listed in ``avail_operations`` file and reading from the ``operations`` file. @@ -198,6 +203,8 @@ If you wrote ``vaddr`` to the ``contexts/<N>/operations``, each target should be a process. You can specify the process to DAMON by writing the pid of the process to the ``pid_target`` file. +.. _sysfs_regions: + targets/<N>/regions ------------------- @@ -208,9 +215,10 @@ can be covered. However, users could want to set the initial monitoring region to specific address ranges. In contrast, DAMON do not automatically sets and updates the monitoring target -regions when ``paddr`` monitoring operations set is being used (``paddr`` is -written to the ``contexts/<N>/operations``). Therefore, users should set the -monitoring target regions by themselves in the case. +regions when ``fvaddr`` or ``paddr`` monitoring operations sets are being used +(``fvaddr`` or ``paddr`` have written to the ``contexts/<N>/operations``). +Therefore, users should set the monitoring target regions by themselves in the +cases. For such cases, users can explicitly set the initial monitoring target regions as they want, by writing proper values to the files under this directory. |