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diff --git a/Documentation/mm/damon/faq.rst b/Documentation/mm/damon/faq.rst new file mode 100644 index 0000000000..3279dc7a82 --- /dev/null +++ b/Documentation/mm/damon/faq.rst @@ -0,0 +1,27 @@ +.. SPDX-License-Identifier: GPL-2.0 + +========================== +Frequently Asked Questions +========================== + +Does DAMON support virtual memory only? +======================================= + +No. The core of the DAMON is address space independent. The address space +specific monitoring operations including monitoring target regions +constructions and actual access checks can be implemented and configured on the +DAMON core by the users. In this way, DAMON users can monitor any address +space with any access check technique. + +Nonetheless, DAMON provides vma/rmap tracking and PTE Accessed bit check based +implementations of the address space dependent functions for the virtual memory +and the physical memory by default, for a reference and convenient use. + + +Can I simply monitor page granularity? +====================================== + +Yes. You can do so by setting the ``min_nr_regions`` attribute higher than the +working set size divided by the page size. Because the monitoring target +regions size is forced to be ``>=page size``, the region split will make no +effect. |