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From: Rik van Riel To: Chris Li , Gregory Price Cc: Johannes Weiner , Baoquan He , Nhat Pham , Kairui Song , Michal Hocko , Roman Gushchin , Shakeel Butt , Yosry Ahmed , David Hildenbrand , Muchun Song , Kemeng Shi , Barry Song , YoungJun Park , Chengming Zhou , "Lorenzo Stoakes (Oracle)" , "Liam R. Howlett" , "Vlastimil Babka (SUSE)" , Mike Rapoport , Suren =?UTF-8?Q?Baghdasaryan=EF=BF=BC?= , Qi Zheng , Axel Rasmussen , Yuanchu Xie , Wei Xu , Wenchao Hao , Jonathan Corbet , Hugh Dickins , Baolin Wang , Tejun Heo , Michal =?ISO-8859-1?Q?Koutn=FD?= , Shuah Khan , Kunwu Chan , Meta kernel team , Linux Memory Management List , Linux Kernel Mailing List , linux-doc@vger.kernel.org, "open list:CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)" , Andrew Morton , Kairui Song , Joshua Hahn Date: Tue, 22 Sep 2026 11:52:49 -0400 In-Reply-To: References: <785353ef79844e81a8cd97e87b00ef1f785b15e5.camel@surriel.com> <83539be885f15bb567b30264f5f62e718f4a9fd0.camel@surriel.com> Autocrypt: addr=riel@surriel.com; prefer-encrypt=mutual; keydata=mQENBFIt3aUBCADCK0LicyCYyMa0E1lodCDUBf6G+6C5UXKG1jEYwQu49cc/gUBTTk33A eo2hjn4JinVaPF3zfZprnKMEGGv4dHvEOCPWiNhlz5RtqH3SKJllq2dpeMS9RqbMvDA36rlJIIo47 Z/nl6IA8MDhSqyqdnTY8z7LnQHqq16jAqwo7Ll9qALXz4yG1ZdSCmo80VPetBZZPw7WMjo+1hByv/ lvdFnLfiQ52tayuuC1r9x2qZ/SYWd2M4p/f5CLmvG9UcnkbYFsKWz8bwOBWKg1PQcaYHLx06sHGdY dIDaeVvkIfMFwAprSo5EFU+aes2VB2ZjugOTbkkW2aPSWTRsBhPHhV6dABEBAAG0HlJpayB2YW4gU mllbCA8cmllbEByZWRoYXQuY29tPokBHwQwAQIACQUCW5LcVgIdIAAKCRDOed6ShMTeg05SB/986o gEgdq4byrtaBQKFg5LWfd8e+h+QzLOg/T8mSS3dJzFXe5JBOfvYg7Bj47xXi9I5sM+I9Lu9+1XVb/ r2rGJrU1DwA09TnmyFtK76bgMF0sBEh1ECILYNQTEIemzNFwOWLZZlEhZFRJsZyX+mtEp/WQIygHV WjwuP69VJw+fPQvLOGn4j8W9QXuvhha7u1QJ7mYx4dLGHrZlHdwDsqpvWsW+3rsIqs1BBe5/Itz9o 6y9gLNtQzwmSDioV8KhF85VmYInslhv5tUtMEppfdTLyX4SUKh8ftNIVmH9mXyRCZclSoa6IMd635 Jq1Pj2/Lp64tOzSvN5Y9zaiCc5FucXtB9SaWsgdmFuIFJpZWwgPHJpZWxAc3VycmllbC5jb20+iQE +BBMBAgAoBQJSLd2lAhsjBQkSzAMABgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAAKCRDOed6ShMTe g4PpB/0ZivKYFt0LaB22ssWUrBoeNWCP1NY/lkq2QbPhR3agLB7ZXI97PF2z/5QD9Fuy/FD/jddPx KRTvFCtHcEzTOcFjBmf52uqgt3U40H9GM++0IM0yHusd9EzlaWsbp09vsAV2DwdqS69x9RPbvE/Ne fO5subhocH76okcF/aQiQ+oj2j6LJZGBJBVigOHg+4zyzdDgKM+jp0bvDI51KQ4XfxV593OhvkS3z 3FPx0CE7l62WhWrieHyBblqvkTYgJ6dq4bsYpqxxGJOkQ47WpEUx6onH+rImWmPJbSYGhwBzTo0Mm G1Nb1qGPG+mTrSmJjDRxrwf1zjmYqQreWVSFEt26tBpSaWsgdmFuIFJpZWwgPHJpZWxAZmIuY29tP okBPgQTAQIAKAUCW5LbiAIbIwUJEswDAAYLCQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQznneko TE3oOUEQgAsrGxjTC1bGtZyuvyQPcXclap11Ogib6rQywGYu6/Mnkbd6hbyY3wpdyQii/cas2S44N cQj8HkGv91JLVE24/Wt0gITPCH3rLVJJDGQxprHTVDs1t1RAbsbp0XTksZPCNWDGYIBo2aHDwErhI omYQ0Xluo1WBtH/UmHgirHvclsou1Ks9jyTxiPyUKRfae7GNOFiX99+ZlB27P3t8CjtSO831Ij0Ip QrfooZ21YVlUKw0Wy6Ll8EyefyrEYSh8KTm8dQj4O7xxvdg865TLeLpho5PwDRF+/mR3qi8CdGbkE c4pYZQO8UDXUN4S+pe0aTeTqlYw8rRHWF9TnvtpcNzZw== Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.60.2 (3.60.2-1.fc44) MIME-Version: 1.0 X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 3F33220008 X-Stat-Signature: 7z6khewuczruiifwsjct6sum1ppzdhap X-Rspam-User: X-HE-Tag: 1790092437-242310 X-HE-Meta: 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 wU4QrzjL zccnPd5UL3NQIn/uNsscOQDHjX8/C+873viJC9GwuMvR4ru0vti/SeJM4TjYgGhg+1ZkRFyW6iOjNc5bbMD5i5mnhoejZY8WkDcEQM7z8X0BCJfyQXBts6WvHY9/4c5UF9QsF/H4Uwj9bpnSJRxIx/vrrXP3BcNN5qacPtxa3dLrLZZrlx02J3pA0OLZmw7RVjCecy7hDuSvF5vv48tvyQMEUHDu33SOQgnHyd2RriqNPJpeWxhrQ3m68Y1smjxHaR4PRzrwyLBg2wMNZLhaI3L0lLHjypk8M1INvkFeKo6RtgFrAgJMMbYLRxQu21CEdVLXuGBjyGOoEa4E9MdDdQsiIUR3oY0qH7JZOKx/D8+K2hrcv6ZCbE0mXI087Ql6VpeDPkIWUsoIdnsaViHMB1ZmwI1UIJhzqqiGVJwna5x5cW3nbIDApeuYAhJqGXFyjLkeP4E4f5fJ14KY= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, 2026-09-22 at 05:43 -1000, Chris Li wrote: > On Tue, Sep 22, 2026 at 5:20=E2=80=AFAM Gregory Price > wrote: > >=20 > > On Tue, Sep 22, 2026 at 03:32:44AM -1000, Chris Li wrote: > > > > Right now it has 64GB of memory. > > >=20 > > > That is exactly my point. You are running 1/8 =3D 12.5% system ram. > > >=20 > >=20 > > Chris you are missing the point > >=20 > > Zswap:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 8812= 236 kB > > Zswapped:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 24927876 kB >=20 > I am well aware of the point. The 7%-10% data I provided is before > compression. After compression, the real saving is about 1.5% - 2%. >=20 Here I'm at 28% without any issues, with room for more. > You are not listening. The boundary was set due to feedback from the > application SLO. Those are real deployments not imaginary usage. > Please respect the user. >=20 Different users need different things. The kernel needs to be able to accommodate all of them. The kernel default should accommodate the people who are least capable of configuring their systems. Hyperscalers can set their own defaults across their fleets. They know how to adjust settings. --=20 All Rights Reversed.