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Date: Fri, 26 Apr 2024 12:52:44 -0700 From: SeongJae Park <sj@...nel.org> To: Andrew Morton <akpm@...ux-foundation.org> Cc: SeongJae Park <sj@...nel.org>, Jonathan Corbet <corbet@....net>, damon@...ts.linux.dev, linux-mm@...ck.org, linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH 5/7] Docs/mm/damon/design: document 'young page' type DAMOS filter Update DAMON design document for the newly added DAMOS filter type, 'young page'. Signed-off-by: SeongJae Park <sj@...nel.org> --- Documentation/mm/damon/design.rst | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/Documentation/mm/damon/design.rst b/Documentation/mm/damon/design.rst index 5620aab9b3850..f2baf617184d0 100644 --- a/Documentation/mm/damon/design.rst +++ b/Documentation/mm/damon/design.rst @@ -461,15 +461,17 @@ number of filters for each scheme. Each filter specifies the type of target memory, and whether it should exclude the memory of the type (filter-out), or all except the memory of the type (filter-in). -Currently, anonymous page, memory cgroup, address range, and DAMON monitoring -target type filters are supported by the feature. Some filter target types -require additional arguments. The memory cgroup filter type asks users to -specify the file path of the memory cgroup for the filter. The address range -type asks the start and end addresses of the range. The DAMON monitoring -target type asks the index of the target from the context's monitoring targets -list. Hence, users can apply specific schemes to only anonymous pages, -non-anonymous pages, pages of specific cgroups, all pages excluding those of -specific cgroups, pages in specific address range, pages in specific DAMON +Currently, anonymous page, memory cgroup, young page, address range, and DAMON +monitoring target type filters are supported by the feature. Some filter +target types require additional arguments. The memory cgroup filter type asks +users to specify the file path of the memory cgroup for the filter. The +address range type asks the start and end addresses of the range. The DAMON +monitoring target type asks the index of the target from the context's +monitoring targets list. Hence, users can apply specific schemes to only +anonymous pages, non-anonymous pages, pages of specific cgroups, all pages +excluding those of specific cgroups, pages that not accessed after the last +access check from the scheme, pages that accessed after the last access check +from the scheme, pages in specific address range, pages in specific DAMON monitoring targets, and any combination of those. To handle filters efficiently, the address range and DAMON monitoring target -- 2.39.2
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