| Message ID | 1547061285-100329-6-git-send-email-yang.shi@linux.alibaba.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mm: memcontrol: do memory reclaim when offlining | expand |
Just a few grammar corrections since this is going into Documentation: > On Jan 9, 2019, at 12:14 PM, Yang Shi <yang.shi@linux.alibaba.com> wrote: > > Add desprition of wipe_on_offline interface in cgroup documents. Add a description of the wipe_on_offline interface to the cgroup documents. > Cc: Michal Hocko <mhocko@suse.com> > Cc: Johannes Weiner <hannes@cmpxchg.org> > Cc: Shakeel Butt <shakeelb@google.com> > Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com> > --- > Documentation/admin-guide/cgroup-v2.rst | 9 +++++++++ > Documentation/cgroup-v1/memory.txt | 10 ++++++++++ > 2 files changed, 19 insertions(+) > > diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst > index 0290c65..e4ef08c 100644 > --- a/Documentation/admin-guide/cgroup-v2.rst > +++ b/Documentation/admin-guide/cgroup-v2.rst > @@ -1303,6 +1303,15 @@ PAGE_SIZE multiple when read back. > memory pressure happens. If you want to avoid that, force_empty will be > useful. > > + memory.wipe_on_offline > + > + This is similar to force_empty, but it just does memory reclaim > + asynchronously in css offline kworker. > + > + Writing into 1 will enable it, disable it by writing into 0. Writing a 1 will enable it; writing a 0 will disable it. > + > + It would reclaim as much as possible memory just as what force_empty does. It will reclaim as much memory as possible, just as force_empty does. > + > > Usage Guidelines > ~~~~~~~~~~~~~~~~ > diff --git a/Documentation/cgroup-v1/memory.txt b/Documentation/cgroup-v1/memory.txt > index 8e2cb1d..1c6e1ca 100644 > --- a/Documentation/cgroup-v1/memory.txt > +++ b/Documentation/cgroup-v1/memory.txt > @@ -71,6 +71,7 @@ Brief summary of control files. > memory.stat # show various statistics > memory.use_hierarchy # set/show hierarchical account enabled > memory.force_empty # trigger forced page reclaim > + memory.wipe_on_offline # trigger forced page reclaim when offlining > memory.pressure_level # set memory pressure notifications > memory.swappiness # set/show swappiness parameter of vmscan > (See sysctl's vm.swappiness) > @@ -581,6 +582,15 @@ hierarchical_<counter>=<counter pages> N0=<node 0 pages> N1=<node 1 pages> ... > > The "total" count is sum of file + anon + unevictable. > > +5.7 wipe_on_offline > + > +This is similar to force_empty, but it just does memory reclaim asynchronously > +in css offline kworker. > + > +Writing into 1 will enable it, disable it by writing into 0. Writing a 1 will enable it; writing a 0 will disable it. > + > +It would reclaim as much as possible memory just as what force_empty does. It will reclaim as much memory as possible, just as force_empty does. > + > 6. Hierarchy support > > The memory controller supports a deep hierarchy and hierarchical accounting. > -- > 1.8.3.1 >
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst index 0290c65..e4ef08c 100644 --- a/Documentation/admin-guide/cgroup-v2.rst +++ b/Documentation/admin-guide/cgroup-v2.rst @@ -1303,6 +1303,15 @@ PAGE_SIZE multiple when read back. memory pressure happens. If you want to avoid that, force_empty will be useful. + memory.wipe_on_offline + + This is similar to force_empty, but it just does memory reclaim + asynchronously in css offline kworker. + + Writing into 1 will enable it, disable it by writing into 0. + + It would reclaim as much as possible memory just as what force_empty does. + Usage Guidelines ~~~~~~~~~~~~~~~~ diff --git a/Documentation/cgroup-v1/memory.txt b/Documentation/cgroup-v1/memory.txt index 8e2cb1d..1c6e1ca 100644 --- a/Documentation/cgroup-v1/memory.txt +++ b/Documentation/cgroup-v1/memory.txt @@ -71,6 +71,7 @@ Brief summary of control files. memory.stat # show various statistics memory.use_hierarchy # set/show hierarchical account enabled memory.force_empty # trigger forced page reclaim + memory.wipe_on_offline # trigger forced page reclaim when offlining memory.pressure_level # set memory pressure notifications memory.swappiness # set/show swappiness parameter of vmscan (See sysctl's vm.swappiness) @@ -581,6 +582,15 @@ hierarchical_<counter>=<counter pages> N0=<node 0 pages> N1=<node 1 pages> ... The "total" count is sum of file + anon + unevictable. +5.7 wipe_on_offline + +This is similar to force_empty, but it just does memory reclaim asynchronously +in css offline kworker. + +Writing into 1 will enable it, disable it by writing into 0. + +It would reclaim as much as possible memory just as what force_empty does. + 6. Hierarchy support The memory controller supports a deep hierarchy and hierarchical accounting.
Add desprition of wipe_on_offline interface in cgroup documents. Cc: Michal Hocko <mhocko@suse.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Shakeel Butt <shakeelb@google.com> Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com> --- Documentation/admin-guide/cgroup-v2.rst | 9 +++++++++ Documentation/cgroup-v1/memory.txt | 10 ++++++++++ 2 files changed, 19 insertions(+)