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From: Johannes Weiner <hannes@cmpxchg.org>
To: Suren Baghdasaryan <surenb@google.com>
Cc: tj@kernel.org, mhocko@kernel.org, vdavydov.dev@gmail.com,
	akpm@linux-foundation.org, shakeelb@google.com, guro@fb.com,
	songmuchun@bytedance.com, shy828301@gmail.com, alexs@kernel.org,
	alexander.h.duyck@linux.intel.com, richard.weiyang@gmail.com,
	vbabka@suse.cz, axboe@kernel.dk, iamjoonsoo.kim@lge.com,
	david@redhat.com, willy@infradead.org, apopple@nvidia.com,
	minchan@kernel.org, linmiaohe@huawei.com,
	linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
	linux-mm@kvack.org, kernel-team@android.com
Subject: Re: [PATCH 1/3] mm, memcg: add mem_cgroup_disabled checks in vmpressure and swap-related functions
Date: Fri, 9 Jul 2021 10:41:00 -0400	[thread overview]
Message-ID: <YOhf/DhU3ATIrblp@cmpxchg.org> (raw)
In-Reply-To: <20210709000509.2618345-2-surenb@google.com>

On Thu, Jul 08, 2021 at 05:05:07PM -0700, Suren Baghdasaryan wrote:
> Add mem_cgroup_disabled check in vmpressure, mem_cgroup_uncharge_swap and
> cgroup_throttle_swaprate functions. 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 ~2.1% overhead reduction when running PFT test
> comparing {CONFIG_MEMCG=n, CONFIG_MEMCG_SWAP=n} against {CONFIG_MEMCG=y,
> CONFIG_MEMCG_SWAP=y, cgroup_disable=memory} configuration on an 8-core
> ARM64 Android device.
> 
> Signed-off-by: Suren Baghdasaryan <surenb@google.com>

Acked-by: Johannes Weiner <hannes@cmpxchg.org>

  reply	other threads:[~2021-07-09 14:41 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 [this message]
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

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