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b=XOymsCX4r/qKORJi45Mr8d9xXPTQBelgyYC4+PjxL5iQDXueYUqxWu0LTByCt0+fV hFSUw9ODOfn9Hkrq5QZIFOf/cIaIZIkQlIxBeux5yIqzwgwNrKK6tfkKA0cdz9FJwr folJ1AMVoXvjOptwx6rZPjkZ8wM6V7xep9AXTGJ4= Date: Fri, 5 Apr 2024 13:11:40 -0700 From: Andrew Morton To: Barry Song <21cnbao@gmail.com> Cc: david@redhat.com, linux-mm@kvack.org, ryan.roberts@arm.com, cerasuolodomenico@gmail.com, chrisl@kernel.org, kasong@tencent.com, peterx@redhat.com, surenb@google.com, v-songbaohua@oppo.com, willy@infradead.org, yosryahmed@google.com, yuzhao@google.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 0/2] mm: add per-order mTHP alloc and swpout counters Message-Id: <20240405131140.8881aae1af0d877dc70c8ea9@linux-foundation.org> In-Reply-To: <20240405102704.77559-1-21cnbao@gmail.com> References: <20240405102704.77559-1-21cnbao@gmail.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: 8c153se4387qd3cka7zh5yranmt1rwgb X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: C4DFF140016 X-Rspam-User: X-HE-Tag: 1712347902-548623 X-HE-Meta: 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, 5 Apr 2024 23:27:02 +1300 Barry Song <21cnbao@gmail.com> wrote: > The patchset introduces a framework to facilitate mTHP counters, starting > with the allocation and swap-out counters. Currently, only four new nodes > are appended to the stats directory for each mTHP size. > > /sys/kernel/mm/transparent_hugepage/hugepages-/stats > anon_alloc > anon_alloc_fallback > anon_swpout > anon_swpout_fallback Please let's get these documented? Documentation/admin-guide/mm/transhuge.rst seems to be the place, and under Documentation/ABI.