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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7AEA1C433F5 for ; Wed, 2 Mar 2022 15:53:52 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 1B8788D0002; Wed, 2 Mar 2022 10:53:52 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 169218D0001; Wed, 2 Mar 2022 10:53:52 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 058028D0002; Wed, 2 Mar 2022 10:53:52 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0169.hostedemail.com [216.40.44.169]) by kanga.kvack.org (Postfix) with ESMTP id EB1E78D0001 for ; Wed, 2 Mar 2022 10:53:51 -0500 (EST) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id A43DC8249980 for ; Wed, 2 Mar 2022 15:53:51 +0000 (UTC) X-FDA: 79199891862.24.C3F4351 Received: from mail-pj1-f44.google.com (mail-pj1-f44.google.com [209.85.216.44]) by imf04.hostedemail.com (Postfix) with ESMTP id 1DD9340014 for ; Wed, 2 Mar 2022 15:53:50 +0000 (UTC) Received: by mail-pj1-f44.google.com with SMTP id gb21so2108521pjb.5 for ; Wed, 02 Mar 2022 07:53:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=orQMNyJ1p+lfcP+VV8P/p/Ou8HVSS9uzXu0GBE3nSZ4=; b=lvql2ckp00vk2UuTcuKZE9q6Or4l3VjpFS16nXB331LaHB8CFJayiaRxGXMXVzU6qx 2364nDdy5NeMSJhCduo1BvkWfCP9Wm0Zr03kLq8Eze4nMgMjig+cDqEM26Qnrw7hvKym 9x4Vhqx8ARnXwaDReSe6avUHtcAsOgwWVmmcy5dfs5bKp5277ifb8jx0+EnyZKJUP5e2 +Cjh/gwr3TVqAcRtooAXeC2BcWLa+ssw3crUOKiWMgrlLHUfg2VTYRUcDD0kZAgeUZmg gh4678L26XghjP6X6I9NVblf/qxjhR36xqhQ92qzWdvbzqLzYnRv6PvCsXsxijzLVn4S WVmg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=orQMNyJ1p+lfcP+VV8P/p/Ou8HVSS9uzXu0GBE3nSZ4=; b=lx/gmrm7xfz3BJ+/iCMjTabLK4Zq+iew2lup4SSBkp7c5ZVwJyH+uWg1kDsZGtLO/o P6dIk52HSK5He4keDEtRLJ/lJ5/4KPVn/yiKfbHFDquegbEVkwzOMNHWVBAiU8QGY4Xj F+u+JNGKHPDPNNWVpRfA5MXjwT6AG0T4oeL/+e674RBqpseT6eLvImRXf54Yr6/OK7AQ E7L/avizw4LTrzrp6tEypZxm5LVYO2Ut7J6ZevL7s+WjK40KHjw4bO6zKBiWmWnvQz3w DYRGG7E2Bu6F4DNVhA6JMEQuPmlr9hKffpgQ5NBxDJp1ANMFPKiIzN3JRdieKZJrER0O 53Qg== X-Gm-Message-State: AOAM531vaRWZOpX0qfw2InAFvgJNbHb9sNB5uLVfrDGHt+bNhNWPAoc8 5DDqX1KfG5TeUERoUeMdXTg1+AFuvJyBTugIVPhcyw== X-Google-Smtp-Source: ABdhPJyrQEUb6ZUQBFabyk25XJ+FN3QZiYaptxCBEjuCbN+BqgnOFVYKZ+uCE7f8YdWwTiuRDWk283qdaKlVXop8PjA= X-Received: by 2002:a17:90a:588c:b0:1b9:d80e:e397 with SMTP id j12-20020a17090a588c00b001b9d80ee397mr394487pji.237.1646236429959; Wed, 02 Mar 2022 07:53:49 -0800 (PST) MIME-Version: 1.0 References: <20220224185236.qgzm3jpoz2orjfcw@google.com> <20220225180345.GD12037@blackbody.suse.cz> <20220228230949.xrmy6j2glxsoffko@google.com> <20220302100821.GB10867@blackbody.suse.cz> In-Reply-To: <20220302100821.GB10867@blackbody.suse.cz> From: Shakeel Butt Date: Wed, 2 Mar 2022 07:53:38 -0800 Message-ID: Subject: Re: Regression in workingset_refault latency on 5.15 To: =?UTF-8?Q?Michal_Koutn=C3=BD?= Cc: Ivan Babrou , Daniel Dao , kernel-team , Linux MM , Johannes Weiner , Roman Gushchin , Feng Tang , Michal Hocko , Hillf Danton , Andrew Morton , Linus Torvalds Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 1DD9340014 X-Stat-Signature: be637bi9eg3puqbz5zjh84389tywc4o5 Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=lvql2ckp; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf04.hostedemail.com: domain of shakeelb@google.com designates 209.85.216.44 as permitted sender) smtp.mailfrom=shakeelb@google.com X-HE-Tag: 1646236430-407666 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000595, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Mar 2, 2022 at 2:08 AM Michal Koutn=C3=BD wrote: > [...] > > BTW what was the "last good" kernel that you use as baseline for > comparisons? (I can't find it in the thread and I only assume we're > comparing against pre-rstat switch, i.e. last good < v5.13?) > I think 5.10 is the last good kernel for them (and yes pre-rstat switch).