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Subject[PATCH v3 0/8] per lruvec lru_lock for memcg
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Hi all,

This patchset move lru_lock into lruvec, give a lru_lock for each of
lruvec, thus bring a lru_lock for each of memcg per node.

According to Daniel Jordan's suggestion, I run 64 'dd' with on 32
containers on my 2s* 8 core * HT box with the modefied case:
https://git.kernel.org/pub/scm/linux/kernel/git/wfg/vm-scalability.git/tree/case-lru-file-readtwice

With this change above lru_lock censitive testing improved 17% with multiple
containers scenario. And no performance lose w/o mem_cgroup.

Thanks Hugh Dickins and Konstantin Khlebnikov, they both bring the same idea
7 years ago. Now I believe considering my testing result, and google internal
using fact. This feather is clearly benefit multi-container user.

So I like to introduce it here.

v3: rebase on linux-next, and fold the relock fix patch into introduceing patch

v2: bypass a performance regression bug and fix some function issues

v1: initial version, aim testing show 5% performance incrase

Alex Shi (7):
mm/lru: add per lruvec lock for memcg
mm/lruvec: add irqsave flags into lruvec struct
mm/lru: replace pgdat lru_lock with lruvec lock
mm/lru: only change the lru_lock iff page's lruvec is different
mm/pgdat: remove pgdat lru_lock
mm/lru: likely enhancement
mm/lru: revise the comments of lru_lock

Documentation/admin-guide/cgroup-v1/memcg_test.rst | 15 +----
Documentation/admin-guide/cgroup-v1/memory.rst | 6 +-
Documentation/trace/events-kmem.rst | 2 +-
Documentation/vm/unevictable-lru.rst | 22 +++----
include/linux/memcontrol.h | 67 +++++++++++++++++++
include/linux/mm_types.h | 2 +-
include/linux/mmzone.h | 7 +-
mm/compaction.c | 62 +++++++++++------
mm/filemap.c | 4 +-
mm/huge_memory.c | 16 ++---
mm/memcontrol.c | 64 ++++++++++++++----
mm/mlock.c | 27 ++++----
mm/mmzone.c | 1 +
mm/page_alloc.c | 1 -
mm/page_idle.c | 5 +-
mm/rmap.c | 2 +-
mm/swap.c | 77 +++++++++-------------
mm/vmscan.c | 74 +++++++++++----------
18 files changed, 277 insertions(+), 177 deletions(-)

--
1.8.3.1

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