From: Balbir Singh <bsingharora@gmail.com>
To: "Huang, Ying" <ying.huang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andrea Arcangeli <aarcange@redhat.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
Vladimir Davydov <vdavydov@virtuozzo.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@kernel.org>, Tejun Heo <tj@kernel.org>,
cgroups@vger.kernel.org
Subject: Re: [PATCH -mm -v6 2/9] mm, memcg: Support to charge/uncharge multiple swap entries
Date: Wed, 08 Mar 2017 22:37:56 +1100 [thread overview]
Message-ID: <1488973076.13674.5.camel@gmail.com> (raw)
In-Reply-To: <20170308072613.17634-3-ying.huang@intel.com>
On Wed, 2017-03-08 at 15:26 +0800, Huang, Ying wrote:
> From: Huang Ying <ying.huang@intel.com>
>A
> This patch make it possible to charge or uncharge a set of continuous
> swap entries in the swap cgroup.A A The number of swap entries is
> specified via an added parameter.
>A
> This will be used for the THP (Transparent Huge Page) swap support.
> Where a swap cluster backing a THP may be allocated and freed as a
> whole.A A So a set of (HPAGE_PMD_NR) continuous swap entries backing one
> THP need to be charged or uncharged together.A A This will batch the
> cgroup operations for the THP swap too.
A quick look at the patches makes it look sane. I wonder if we would
make sense to track THP swapout separately as well
(from a memory.stat perspective)
Balbir Singh
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next prev parent reply other threads:[~2017-03-08 11:38 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-08 7:26 [PATCH -v6 0/9] THP swap: Delay splitting THP during swapping out Huang, Ying
2017-03-08 7:26 ` [PATCH -mm -v6 1/9] mm, swap: Make swap cluster size same of THP size on x86_64 Huang, Ying
2017-03-08 12:56 ` Matthew Wilcox
2017-03-09 1:45 ` Huang, Ying
2017-03-08 7:26 ` [PATCH -mm -v6 2/9] mm, memcg: Support to charge/uncharge multiple swap entries Huang, Ying
2017-03-08 11:37 ` Balbir Singh [this message]
2017-03-09 1:28 ` Huang, Ying
2017-03-09 21:22 ` Balbir Singh
2017-03-08 7:26 ` [PATCH -mm -v6 3/9] mm, THP, swap: Add swap cluster allocate/free functions Huang, Ying
2017-03-14 23:13 ` Tim Chen
2017-03-15 1:19 ` Huang, Ying
2017-03-15 17:15 ` Tim Chen
2017-03-16 6:31 ` Huang, Ying
2017-03-08 7:26 ` [PATCH -mm -v6 4/9] mm, THP, swap: Add get_huge_swap_page() Huang, Ying
2017-03-14 23:40 ` Tim Chen
2017-03-15 1:08 ` Huang, Ying
2017-03-08 7:26 ` [PATCH -mm -v6 5/9] mm, THP, swap: Support to clear SWAP_HAS_CACHE for huge page Huang, Ying
2017-03-15 0:14 ` Tim Chen
2017-03-15 0:54 ` Huang, Ying
2017-03-08 7:26 ` [PATCH -mm -v6 6/9] mm, THP, swap: Support to add/delete THP to/from swap cache Huang, Ying
2017-03-08 7:26 ` [PATCH -mm -v6 7/9] mm, THP: Add can_split_huge_page() Huang, Ying
2017-03-08 7:26 ` [PATCH -mm -v6 8/9] mm, THP, swap: Support to split THP in swap cache Huang, Ying
2017-03-08 7:26 ` [PATCH -mm -v6 9/9] mm, THP, swap: Delay splitting THP during swap out Huang, Ying
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