From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B5C79FF885A for ; Sun, 3 May 2026 04:21:24 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id A35356B0005; Sun, 3 May 2026 00:21:23 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 9E60A6B008A; Sun, 3 May 2026 00:21:23 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8FB896B008C; Sun, 3 May 2026 00:21:23 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 7E7E86B0005 for ; Sun, 3 May 2026 00:21:23 -0400 (EDT) Received: from smtpin04.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 115621A077D for ; Sun, 3 May 2026 04:21:23 +0000 (UTC) X-FDA: 84724809246.04.FDC6112 Received: from smtp153-163.sina.com.cn (smtp153-163.sina.com.cn [61.135.153.163]) by imf15.hostedemail.com (Postfix) with ESMTP id C52D6A0002 for ; Sun, 3 May 2026 04:21:18 +0000 (UTC) Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=sina.com header.s=201208 header.b=PvdIuwOf; dmarc=pass (policy=none) header.from=sina.com; spf=pass (imf15.hostedemail.com: domain of hdanton@sina.com designates 61.135.153.163 as permitted sender) smtp.mailfrom=hdanton@sina.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1777782081; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=NqBpTn+bRUilCJGhIuKwvhpXbcBES7U3IIxz55lRz6M=; b=cCndgVFnEkaDVvZOOnUK0XT8mHmJ2p2s8i7KiMLzMs5zoAH2OZXKgNqq1chs4RW1TE6fBI d1+eonXgEKrnMcVF2SdFSnc85u698zCjXjyHYcampOlV9CjbHk4rUGLQfcU9ItKej+QCEJ divX7SF+t2qtLbGF+0ulnG1qmIHSV/U= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1777782081; a=rsa-sha256; cv=none; b=dZcfJ0FmlzUbTgOrPLo65FtTeK8mliP8q37Xbn6uLH/sDc1UD3uigP9WMqEht/J1G11McG VxoWAOPosRt3r+4zxJt+xy/vR2dET0OhMUZLgTOI88Nrr2J3Yxiu2aZkmxyQKxjPJdxr6e BWcTEKLrJKPKsV+61IGmK48lbUcq4Mg= ARC-Authentication-Results: i=1; imf15.hostedemail.com; dkim=pass header.d=sina.com header.s=201208 header.b=PvdIuwOf; dmarc=pass (policy=none) header.from=sina.com; spf=pass (imf15.hostedemail.com: domain of hdanton@sina.com designates 61.135.153.163 as permitted sender) smtp.mailfrom=hdanton@sina.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1777782079; bh=NqBpTn+bRUilCJGhIuKwvhpXbcBES7U3IIxz55lRz6M=; h=From:Subject:Date:Message-ID; b=PvdIuwOf8yVUTWbCOZApgsnP4VNsUE/4g5fJw7DKixwCW5anHrGwXDd56wcIPey/Q Ulrg1Ddm0b6E4ry/wakzxuld/a4RcWENfB6h/4rGc+3PMqAvGFbHEQ3NIl3I5CKiBe 8OVyafruM46Qw0hUOuJJNPh+EyzrQlgA9quW2IT0= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([114.249.62.144]) by sina.com (10.54.253.32) with ESMTP id 69F6CD1400005414; Sun, 3 May 2026 12:20:37 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com X-SMAIL-MID: 7364784456617 X-SMAIL-UIID: 3343487F9BA74A10AE68F0A8C7327C34-20260503-122037-1 From: Hillf Danton To: Vlastimil Babka Cc: Kairui Song , linux-mm@kvack.org, Matthew Wilcox , linux-kernel@vger.kernel.org Subject: Re: [LSF/MM/BPF TOPIC] Improving MGLRU Date: Sun, 3 May 2026 12:20:28 +0800 Message-ID: <20260503042030.279-1-hdanton@sina.com> In-Reply-To: <83c146d2-d52f-41f3-975d-ad607a6f741c@suse.com> References: <20260502085645.262-1-hdanton@sina.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Queue-Id: C52D6A0002 X-Rspamd-Server: rspam04 X-Stat-Signature: c4fmw97ityfcikgwhface6zf97hsdxpu X-HE-Tag: 1777782078-907844 X-HE-Meta: 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 DDPzNjFL TP5TVD3laeZOR28DDJcW3a2JJi4epfgMg2pEWebyyEngj0ceG4bgAnRqFstMGAynwcJyFGDfAQjDoeACgfV1QOdke3sv8qEB+ilU0Eqn+dXF2QlNr0fbiruYmsGVT/GDERrUFSK/hdBj6czy0bJiRv1ROZyT/oVfN4LnCGQaM/4hHgSoBXHkG3C02MloXLjLZVXm3aGaLfb3S8s5iEqpEsGeshoeA2wKUkPY7DtbemwZ4QEgiJupfqIPTvWRudNhyiiZNR2GZcMIWslIq/SyhwukHxy3rHYq3ue11W6sQ0kdoVKv3cIq4v2NPOQtfmzIcSvOetKI/xA/BFmart5UKNWkDhqF61VysmsKhqG/mcEtwyOc= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat, 2 May 2026 13:53:20 +0200 Vlastimil Babka wrote: >On 5/2/26 10:56, Hillf Danton wrote: >> On Thu, 26 Feb 2026 15:54:22 +0000 Matthew Wilcox wrote: >>> On Fri, Feb 20, 2026 at 01:25:33AM +0800, Kairui Song wrote: >>> > MGLRU has been introduced in the mainline for years, but we still have two LRUs >>> > today. There are many reasons MGLRU is still not the only LRU implementation in >>> > the kernel. >>> >>> To my mind, the biggest problem with MGLRU is that Google dumped it on us >>> and ran away. Commit 44958000bada claimed that it was now maintained and >>> added three people as maintainers. In the six months since that commit, >>> none of those three people have any commits in mm/! This is a shameful >>> state of affairs. >>> >>> I say rip it out. >>> >> I suspect you are kidding again. Go and cut it off then we know how sharp >> you are. >> > I can't wait for the day when you finally decide to do that with your e-mail > "contributions". > Frankly I will get you disappointed because I do not have so much energy to do anything unusual like turning page to folio. That is too heavy a burdern on the right shoulder for a non native English speaker.