Documentation: fix cgroup typos and formatting
Fix format and spelling. Signed-off-by: Jörg Sommer <joerg@alea.gnuu.de> Acked-by: Paul Menage <menage@google.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -111,7 +111,7 @@ Hierarchical Cgroups
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CFQ and throttling will practically treat all groups at same level.
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pivot
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/ | \ \
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/ / \ \
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root test1 test2 test3
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Down the line we can implement hierarchical accounting/control support
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@ -142,7 +142,7 @@ and depending on who is launching the browser he can
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With only a single hierarchy, he now would potentially have to create
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a separate cgroup for every browser launched and associate it with
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approp network and other resource class. This may lead to
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appropriate network and other resource class. This may lead to
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proliferation of such cgroups.
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Also lets say that the administrator would like to give enhanced network
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@ -1,8 +1,8 @@
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Memory Resource Controller
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NOTE: The Memory Resource Controller has been generically been referred
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to as the memory controller in this document. Do not confuse memory
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controller used here with the memory controller that is used in hardware.
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NOTE: The Memory Resource Controller has generically been referred to as the
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memory controller in this document. Do not confuse memory controller
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used here with the memory controller that is used in hardware.
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(For editors)
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In this document:
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@ -182,7 +182,7 @@ behind this approach is that a cgroup that aggressively uses a shared
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page will eventually get charged for it (once it is uncharged from
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the cgroup that brought it in -- this will happen on memory pressure).
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Exception: If CONFIG_CGROUP_CGROUP_MEM_RES_CTLR_SWAP is not used..
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Exception: If CONFIG_CGROUP_CGROUP_MEM_RES_CTLR_SWAP is not used.
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When you do swapoff and make swapped-out pages of shmem(tmpfs) to
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be backed into memory in force, charges for pages are accounted against the
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caller of swapoff rather than the users of shmem.
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@ -214,7 +214,7 @@ affecting global LRU, memory+swap limit is better than just limiting swap from
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OS point of view.
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* What happens when a cgroup hits memory.memsw.limit_in_bytes
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When a cgroup his memory.memsw.limit_in_bytes, it's useless to do swap-out
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When a cgroup hits memory.memsw.limit_in_bytes, it's useless to do swap-out
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in this cgroup. Then, swap-out will not be done by cgroup routine and file
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caches are dropped. But as mentioned above, global LRU can do swapout memory
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from it for sanity of the system's memory management state. You can't forbid
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@ -491,13 +491,13 @@ The hierarchy is created by creating the appropriate cgroups in the
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cgroup filesystem. Consider for example, the following cgroup filesystem
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hierarchy
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root
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root
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/ | \
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/ | \
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a b c
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d e
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/ | \
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a b c
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d e
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In the diagram above, with hierarchical accounting enabled, all memory
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usage of e, is accounted to its ancestors up until the root (i.e, c and root),
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