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b=2kiz0HQTXId7rdsgWmMGYACtREFWL4DSuxTFxS5MGRYTBil9axKXk5VRDd+XhHRpd gVHBRYvYirr1NvNlc5D8Ps241ESAJaPgRr/jxMr79sNEKcqXBgBCJpfhO4XebnFcVe yVu1QB66l4xYa+LM9t/ZMoD9XBvyT9xt46nbOSgE= Date: Tue, 2 Jul 2024 18:58:51 -0700 From: Andrew Morton To: Xiu Jianfeng Cc: , , , , , , , Subject: Re: [PATCH -next] mm/hugetlb_cgroup: introduce peak and rsvd.peak to v2 Message-Id: <20240702185851.e85a742f3391857781368f6c@linux-foundation.org> In-Reply-To: <20240702125728.2743143-1-xiujianfeng@huawei.com> References: <20240702125728.2743143-1-xiujianfeng@huawei.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: kme46dw1mm9oq9fm4hzbicdb5jrszbqy X-Rspam-User: X-Rspamd-Queue-Id: BE864180017 X-Rspamd-Server: rspam02 X-HE-Tag: 1719971933-947471 X-HE-Meta: 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 esWviysU SUgPyvIYzsBnexQDbmhOrk076mRwKUrkKf5gvFvwEe1EG4T8zbPevX5UZx/nsc5s6YXMc/OVFA3jcPvh1iT47L1WsUgQvdXOBusXpugmX7+2BZpquqtYeOolUhVpbAz568g5cOCtevE+eRecea9qob+4qobAoG7sKYxPMuP2B5Ozb8/QhbnzRgxzXYsyrLuV+n3wK8yzDSOpEIUjExlnQXeAptlAe0pgWgg2hTKdcZ2lJWy6RSuWu43aN+4d+0LOj4MwcPy7TmjzZOkWarMeKC7zulj0IBZPrNJhoXCuTW/czris= 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 Tue, 2 Jul 2024 12:57:28 +0000 Xiu Jianfeng wrote: > Introduce peak and rsvd.peak to v2 to show the historical maximum > usage of resources, as in some scenarios it is necessary to configure > the value of max/rsvd.max based on the peak usage of resources. "in some scenarios it is necessary" is not a strong statement. It would be helpful to fully describe these scenarios so that others can better understand the value of this change.