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From: Shakeel Butt <shakeelb@google.com>
To: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>, Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@kernel.org>,
	Vladimir Davydov <vdavydov.dev@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Roman Gushchin <guro@fb.com>,
	Muchun Song <songmuchun@bytedance.com>,
	Yang Shi <shy828301@gmail.com>,
	alexs@kernel.org,
	Alexander Duyck <alexander.h.duyck@linux.intel.com>,
	Wei Yang <richard.weiyang@gmail.com>,
	Vlastimil Babka <vbabka@suse.cz>, Jens Axboe <axboe@kernel.dk>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	David Hildenbrand <david@redhat.com>,
	Matthew Wilcox <willy@infradead.org>,
	Alistair Popple <apopple@nvidia.com>,
	Minchan Kim <minchan@kernel.org>,
	Miaohe Lin <linmiaohe@huawei.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Cgroups <cgroups@vger.kernel.org>, Linux MM <linux-mm@kvack.org>,
	kernel-team <kernel-team@android.com>
Subject: Re: [PATCH 3/3] mm, memcg: inline swap-related functions to improve disabled memcg config
Date: Fri, 9 Jul 2021 09:05:24 -0700	[thread overview]
Message-ID: <CALvZod4bpiA-AB_5xLwcicEhRRQmk20b8dEmY_BiDjiGfFR0Nw@mail.gmail.com> (raw)
In-Reply-To: <20210709000509.2618345-4-surenb@google.com>

On Thu, Jul 8, 2021 at 5:05 PM Suren Baghdasaryan <surenb@google.com> wrote:
>
> Inline mem_cgroup_try_charge_swap, mem_cgroup_uncharge_swap and
> cgroup_throttle_swaprate functions to perform mem_cgroup_disabled static
> key check inline before calling the main body of the function. This
> minimizes the memcg overhead in the pagefault and exit_mmap paths when
> memcgs are disabled using cgroup_disable=memory command-line option.
> This change results in ~1% overhead reduction when running PFT test
> comparing {CONFIG_MEMCG=n} against {CONFIG_MEMCG=y, cgroup_disable=memory}
> configuration on an 8-core ARM64 Android device.
>
> Signed-off-by: Suren Baghdasaryan <surenb@google.com>

Reviewed-by: Shakeel Butt <shakeelb@google.com>

      parent reply	other threads:[~2021-07-09 16:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-09  0:05 [PATCH 0/3] mm, memcg: Optimizations to minimize overhead when memcgs are disabled Suren Baghdasaryan
2021-07-09  0:05 ` [PATCH 1/3] mm, memcg: add mem_cgroup_disabled checks in vmpressure and swap-related functions Suren Baghdasaryan
2021-07-09 14:41   ` Johannes Weiner
2021-07-09 16:00   ` Shakeel Butt
2021-07-09  0:05 ` [PATCH 2/3] mm, memcg: inline mem_cgroup_{charge/uncharge} to improve disabled memcg config Suren Baghdasaryan
2021-07-09 14:48   ` Johannes Weiner
2021-07-09 15:18     ` Suren Baghdasaryan
2021-07-09 17:17       ` Suren Baghdasaryan
2021-07-09  0:05 ` [PATCH 3/3] mm, memcg: inline swap-related functions " Suren Baghdasaryan
2021-07-09 14:49   ` Johannes Weiner
2021-07-09 16:05   ` Shakeel Butt [this message]

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