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-rw-r--r--Documentation/admin-guide/cgroup-v2.rst25
1 files changed, 23 insertions, 2 deletions
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index f293a13b42ed..1a16ce68a4d7 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -1445,7 +1445,10 @@ The following nested keys are defined.
anon
Amount of memory used in anonymous mappings such as
- brk(), sbrk(), and mmap(MAP_ANONYMOUS)
+ brk(), sbrk(), and mmap(MAP_ANONYMOUS). Note that
+ some kernel configurations might account complete larger
+ allocations (e.g., THP) if only some, but not all the
+ memory of such an allocation is mapped anymore.
file
Amount of memory used to cache filesystem data,
@@ -1488,7 +1491,10 @@ The following nested keys are defined.
Amount of application memory swapped out to zswap.
file_mapped
- Amount of cached filesystem data mapped with mmap()
+ Amount of cached filesystem data mapped with mmap(). Note
+ that some kernel configurations might account complete
+ larger allocations (e.g., THP) if only some, but not
+ not all the memory of such an allocation is mapped.
file_dirty
Amount of cached filesystem data that was modified but
@@ -1560,6 +1566,12 @@ The following nested keys are defined.
workingset_nodereclaim
Number of times a shadow node has been reclaimed
+ pswpin (npn)
+ Number of pages swapped into memory
+
+ pswpout (npn)
+ Number of pages swapped out of memory
+
pgscan (npn)
Amount of scanned pages (in an inactive LRU list)
@@ -1575,6 +1587,9 @@ The following nested keys are defined.
pgscan_khugepaged (npn)
Amount of scanned pages by khugepaged (in an inactive LRU list)
+ pgscan_proactive (npn)
+ Amount of scanned pages proactively (in an inactive LRU list)
+
pgsteal_kswapd (npn)
Amount of reclaimed pages by kswapd
@@ -1584,6 +1599,9 @@ The following nested keys are defined.
pgsteal_khugepaged (npn)
Amount of reclaimed pages by khugepaged
+ pgsteal_proactive (npn)
+ Amount of reclaimed pages proactively
+
pgfault (npn)
Total number of page faults incurred
@@ -1661,6 +1679,9 @@ The following nested keys are defined.
pgdemote_khugepaged
Number of pages demoted by khugepaged.
+ pgdemote_proactive
+ Number of pages demoted by proactively.
+
hugetlb
Amount of memory used by hugetlb pages. This metric only shows
up if hugetlb usage is accounted for in memory.current (i.e.