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Subject[PATCH 4/6] Docs/admin-guide/mm/damon/usage: Mention tracepoint at the beginning
Date
To get detailed monitoring results from the user space, users need to
use the damon_aggregated tracepoint. This commit adds a brief mention
of it at the beginning of the usage document.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
Documentation/admin-guide/mm/damon/usage.rst | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
index 24137312f601..846c85bf4b9d 100644
--- a/Documentation/admin-guide/mm/damon/usage.rst
+++ b/Documentation/admin-guide/mm/damon/usage.rst
@@ -21,7 +21,10 @@ DAMON provides below three interfaces for different users.
you can write and use your personalized DAMON debugfs wrapper programs that
reads/writes the debugfs files instead of you. The `DAMON user space tool
<https://github.com/awslabs/damo>`_ is one example of such programs. It
- supports both virtual and physical address spaces monitoring.
+ supports both virtual and physical address spaces monitoring. Note that this
+ interface provides only simple :ref:`statistics <damos_stats>` for the
+ monitoring results. For detailed monitoring results, DAMON provides a
+ :ref:`tracepoint <tracepoint>`.
- *Kernel Space Programming Interface.*
:doc:`This </vm/damon/api>` is for kernel space programmers. Using this,
users can utilize every feature of DAMON most flexibly and efficiently by
@@ -215,6 +218,8 @@ If the value is higher than ``<high mark>`` or lower than ``<low mark>``, the
scheme is deactivated. If the value is lower than ``<mid mark>``, the scheme
is activated.

+.. _damos_stats:
+
Statistics
~~~~~~~~~~

@@ -268,6 +273,8 @@ the monitoring is turned on. If you write to the files while DAMON is running,
an error code such as ``-EBUSY`` will be returned.


+.. _tracepoint:
+
Tracepoint for Monitoring Results
=================================

--
2.17.1
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