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(p200300cbc7081d0099ec96567475678d.dip0.t-ipconnect.de. [2003:cb:c708:1d00:99ec:9656:7475:678d]) by smtp.gmail.com with ESMTPSA id w21-20020a05600c475500b0040b2976eb02sm17948819wmo.10.2023.11.28.08.40.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Nov 2023 08:40:13 -0800 (PST) Message-ID: <00880356-86bd-416d-93ae-e8443b9790f3@redhat.com> Date: Tue, 28 Nov 2023 17:40:12 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RESEND PATCH v7 00/10] Small-sized THP for anonymous memory To: Ryan Roberts , John Hubbard , Alistair Popple Cc: Matthew Wilcox , Andrew Morton , Yin Fengwei , Yu Zhao , Catalin Marinas , Anshuman Khandual , Yang Shi , "Huang, Ying" , Zi Yan , Luis Chamberlain , Itaru Kitayama , "Kirill A. Shutemov" , David Rientjes , Vlastimil Babka , Hugh Dickins , Kefeng Wang , linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20231122162950.3854897-1-ryan.roberts@arm.com> <9c8f6d2a-7ed8-45d2-9684-d77489bd99b8@redhat.com> <26c361bc-6d87-4a57-9fae-ef635c9039c7@redhat.com> <87sf4rppuc.fsf@nvdebian.thelocal> <51e6c9f1-e863-464b-b5f3-d7f60a7ebed6@arm.com> <58af512c-3d7d-4774-88f7-6336c9384b61@arm.com> <137902b6-24dc-4d51-9be2-6f94aa9dbc3a@redhat.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 013E4100012 X-Stat-Signature: yhtfngmt4w9e8gcuup8rtjhzt3s3sz8m X-Rspam-User: X-HE-Tag: 1701189617-74592 X-HE-Meta: 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 yJ4O5Iqr OVGR5/bB3MhTJu7W9HFDB3P+2OxmCYjkvnKj0F8UPV5mF9sNIprM2Npm9OuUj6N8bPU6M9Cd4ruJdFRL84YXvr/D7w9Hznm0p6Cij5o1SXhvmBil3ttH7/HT+Sq+jOK4NKbEQzvhjfgDcj+JoBb8a3ic3jamjCVcQktBqcoy3i16UpUn/IZMXeUlBDamYRUZFsoEEGKvQBiNrKSkrehB0XIAxpDl2YLT1zWCqUNwojSETFWDy3qyZop33KD1RyM4OopRpcbVIMhAfHnuh5VJ1cCP++wh40zENxALUQIXWMCpGOyLwUK0hhz+NDnnSfH2xMs+OVicFhY/TwlxlSUesNFaMfvkbMSrd01Ss9W41XEwe0F410+RXs4dRpG+080XaQLlMNNwKuxZHuk92SL30QtmSitVVYqaIFK9rxikX/3kkcb/zXWXwxQ6ZJ16ysgMR5gzEg2zxEijsZn7voU8SP33C6vptf8OB5gO8Fx3E/S7VN2w= 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: >> Regarding new stats, maybe an interface that indicates the actual sizes would be >> best. As discussed, extending the existing single-large-file statistics might >> not be possible and we'd have to come up with a new interface, that maybe >> completely lacks "AnonHugePages" and directly goes for the individual sizes. > > Yes, but I think we are agreed this is future work. > Yes, indeed, just spelling it out. -- Cheers, David / dhildenb