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Mon, 02 Mar 2026 04:17:53 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Kairui Song Date: Mon, 2 Mar 2026 20:17:16 +0800 X-Gm-Features: AaiRm52V-K_-OhbXL6gPkeiO4wU-MsNrk6wkWX_1kJutl7MlCfJIZxtp24kkkLs Message-ID: Subject: Re: [LSF/MM/BPF TOPIC] Improving MGLRU To: Vernon Yang Cc: lsf-pc@lists.linux-foundation.org, Axel Rasmussen , Yuanchu Xie , Wei Xu , linux-mm Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: eeyumokqp8hxqyoi4exctzxddeiwpbfe X-Rspamd-Server: rspam09 X-Rspam-User: X-Rspamd-Queue-Id: 8BA9C180008 X-HE-Tag: 1772453875-993124 X-HE-Meta: U2FsdGVkX1/DXM7qaJtBXIINsTgQzFNeeXmNjcjx3Df/6hZnq66WTsDh66+RED5p3aWmQ7vPQKhTT5S1lCqSSn2oWPjHHY9nK4lGtO5fmGi+MfF95cu3bd/13rnpxw3FnMiMJPgndT2gJ4lo5L15VX9zm6BYNvS9Kd5kYRxkzbMtJFJiIlxhuxu6cPR39r2jsrBkNW47gCNzYVy/Tln93Hhp7QYPd4OyuAWZ95it0cS52zUNeT2d9EKbh5IgMOSnHZoo9xI1+wSIGwTd1g2jdbrM9wJrJoOxQFWAg8yWfeHZYjzCMy9inHRruDIPPmR8B6aP9UgWl+KJZQ/X8uA0M8tv0wCMAGNbTQrClT+6NzsGvNwgn94z/iv0dSqxnTUHF9FjWnQM7tEaGY5wSwGO+PcxERG40fuRyW2ISt9mYowbSVid2/WPbJHAw3rc75/qHqhiJmPSaO9SzBu+gjMxyi7ry1zPJBCxYEUotZ/LR8DGFN0FO5uYea0AkV9h7We3iVaYZ7Oc4r3IuwpBATg1njx5Hys9SbDppp/Eg3kXbSIyjJdKb3V7FWxFe4Sh7z/NJKEvE3+MmmpG3VRq4TwYP0Vi/SVI/MMOG+JP+/YNP397vXusgMZ9uamaWg4Z6QguVGYfxRbHBkg4nob9jaFESDV7F1yBuJMQqYnrs4jHxvuf5glkOYC9UMEqge92HK0ItbU9kX+99XcAVXeFE+46L+YZG74m46Rh8wI973V/zx4ZWQIF4rSvQkW7UGQe9UtZHuTdzyrj9WDsJ9gR5JpbdpBGqa7UjES0Zhmj9Z8RvqL1fTTd+zVCM2YvT8wcasPHkrrpa7lRP9jbJYExyyTit1thIP5Qqsc88D0NoMOOAKWLhB/J9Zex52PyHtgO/tsmdDewq1FLos0S5vA1BZomwm59XSLOVJqPk7lzIvNU7EJHFJdhp7URmxpeFvRBL3NER4Jx4Hu9IVhA7wW8ruZ QgK/czZz kDxMb7u9FSudP4iViSlsTMvqO9CFQyVi4qPuCbLizhEefXtXC/KBnPKovyR3WQe1D8Y4oW0BXD9LupcYaX+wrq6fES0ht75kgd6NOhEUQ8rlMek9c7KeK/jObF+Kt0MyaBitKibqiUoLteGVfa9vOrR9nlxbUsXhTlWkt8Mvz36GfH7xj+XsQ/j77eul1gQ9DfNPsw5ekY6Ng3wyoFV0/eK23V/Lbz+oWEs7klhdfEb0NKm/keYFrie47xXQfu+cu72uFyawUzdI97izMBKIZJrEztriujgsQwX5ICko5Asi8i4q/D7sVOmZN3t3dA6dhQbubppVVfl/53dU7bMDtPdw7BD+99gWdyNceq2N0Ef2D2yMVxlp7SHoAs85FutJHgZ+zbdvG/lZC6WTsHhU9Gwryf4BNwHCAeD3QqSe9XpIoFGU= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Feb 27, 2026 at 6:29=E2=80=AFPM Vernon Yang w= rote: > Hi Kairui, > > I would be very interested in discussing this topic as well. > > In Linux desktop distributions, when the system rapidly enters low > memory state, it is almost impossible to enter S4, the success rate > only is 10%. When analyzing this issue, it was identified as the > inability to reclaim memory. Further investigation revealed that: Hi Vernon, Thanks for the comment! > If we could directly remove the force protection of the youngest two > generations, this issue would also be resolved, and the solution would > be more universally applicable. Yeah, that's also what I have in mind. Such issues should be fixable if we find a way to remove or optimize gen protection.