From: SeongJae Park <sj@xxxxxxxxxx> Subject: Docs/admin-guide/mm/damon/usage: mention tracepoint at the beginning 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. Link: https://lkml.kernel.org/r/20211209131806.19317-5-sj@xxxxxxxxxx Signed-off-by: SeongJae Park <sj@xxxxxxxxxx> Cc: Jonathan Corbet <corbet@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- Documentation/admin-guide/mm/damon/usage.rst | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) --- a/Documentation/admin-guide/mm/damon/usage.rst~docs-admin-guide-mm-damon-usage-mention-tracepoint-at-the-beginning +++ a/Documentation/admin-guide/mm/damon/usage.rst @@ -21,7 +21,10 @@ DAMON provides below three interfaces fo 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 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 wri an error code such as ``-EBUSY`` will be returned. +.. _tracepoint: + Tracepoint for Monitoring Results ================================= _
