diff options
| author |   Stefan Roesch <shr@devkernel.io> | 2023-08-11 12:36:55 -0700 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2023-08-21 13:38:02 -0700 |
| commit | b348b5fe2b5f14ac8bb64fe271d7a027db8cc674 (patch) | |
| tree | cf5763397ef785757026521d9014225da3b483a8 /Documentation/admin-guide/mm | |
| parent | mm: allow fault_dirty_shared_page() to be called under the VMA lock (diff) | |
| download | wireguard-linux-b348b5fe2b5f14ac8bb64fe271d7a027db8cc674.tar.xz wireguard-linux-b348b5fe2b5f14ac8bb64fe271d7a027db8cc674.zip | |
mm/ksm: add pages scanned metric
ksm currently maintains several statistics, which let you determine how
successful KSM is at sharing pages. However it does not contain a metric
to determine how much work it does.
This commit adds the pages scanned metric. This allows the administrator
to determine how many pages have been scanned over a period of time.
Link: https://lkml.kernel.org/r/20230811193655.2518943-1-shr@devkernel.io
Signed-off-by: Stefan Roesch <shr@devkernel.io>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@surriel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'Documentation/admin-guide/mm')
| -rw-r--r-- | Documentation/admin-guide/mm/ksm.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/admin-guide/mm/ksm.rst b/Documentation/admin-guide/mm/ksm.rst index 5c5be7bd84b8..776f244bdae4 100644 --- a/Documentation/admin-guide/mm/ksm.rst +++ b/Documentation/admin-guide/mm/ksm.rst @@ -159,6 +159,8 @@ The effectiveness of KSM and MADV_MERGEABLE is shown in ``/sys/kernel/mm/ksm/``: general_profit how effective is KSM. The calculation is explained below. +pages_scanned + how many pages are being scanned for ksm pages_shared how many shared pages are being used pages_sharing |