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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7DD7C43381 for ; Tue, 2 Mar 2021 07:32:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 85A4C61494 for ; Tue, 2 Mar 2021 07:32:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1575438AbhCBD4K (ORCPT ); Mon, 1 Mar 2021 22:56:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60964 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240256AbhCAWp6 (ORCPT ); Mon, 1 Mar 2021 17:45:58 -0500 Received: from mail-qk1-x734.google.com (mail-qk1-x734.google.com [IPv6:2607:f8b0:4864:20::734]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF900C061793 for ; Mon, 1 Mar 2021 14:43:32 -0800 (PST) Received: by mail-qk1-x734.google.com with SMTP id q85so18395878qke.8 for ; Mon, 01 Mar 2021 14:43:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=YJPW6pgVYCP6/a/70cVXkfMzXshOTQJL9A2AiPS8QgI=; b=Bx6umze/cD1yKXlg/5KpVF6OkZsS+2Ixi9nNk3a58P3PJq4mZNH5M4/oo27xzrTQiM ZKDa0UucUS49FjIrbYEBQDQNw/jUIpocA0GCrWFuHvsJwWmOqlYCHdnyIqQ29Hc+27Hr Q/zlzJo8qAUwxTA7IW9pjFFjEqaFlyNLyTvI5f2S2T9puj+sWWGEZPl7RKI2HyPSnfLp ijM9p/pBs650xF9ycatGuwIDXhPH9ZhVpf6n9EdizZ4s8N7S3uKF0nqaSAQHHADs1fR1 XVRscFCYgveZv8k7dInrev3lfX5eU1xfUsOM4vPo+sF85n8SeotZJsA623TUZwGDXCIj 32MQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to; bh=YJPW6pgVYCP6/a/70cVXkfMzXshOTQJL9A2AiPS8QgI=; b=Yito2hNzy6ECvaCp7ZfFWOVBav2qRf7eLGfpFNpOgSBcaCY53ovTC6y4DwFvA2fYkd gcbcd5bWU6TOIlQqu9HT/WYq1b2TEWuNMk9i+2YqQuEFGXn/QmbUxydP9Q0j2GssYa7R k3k1f9bo9bFzOxmX07OSkDHjMKU97KsROMKUMY0XX3y8lMd/gaip/Zk9/m4NXI3Mfezp RvAtw+Iy1uq8gQ+rapqQU2UaUl6dpxCVUc1kN6HqsJW/Axnrtc4komjQ166PfWq/RkGa LiJ/IydZOAYKD/bVaYlcAqBtqltGjVL+VQ4ukN6QsncW+NcjkWHVAHG30mMD6l7NF4V/ XuyA== X-Gm-Message-State: AOAM531DA58UeeTX3767rQ69n+v9mhWDLolhp4SLG1xF/mv2w+SyAyrE uTO/t9tnVIpSnqIYOlKNclY= X-Google-Smtp-Source: ABdhPJwUKD9LyQu8sXWtXvbSePxFbhI35chpmaecruhhZBL06tB7Vxh1URKC23NMUpPK1+Y9H+Qx2Q== X-Received: by 2002:a05:620a:24cd:: with SMTP id m13mr17312691qkn.273.1614638612101; Mon, 01 Mar 2021 14:43:32 -0800 (PST) Received: from localhost (2603-7000-9602-8233-06d4-c4ff-fe48-9d05.res6.spectrum.com. [2603:7000:9602:8233:6d4:c4ff:fe48:9d05]) by smtp.gmail.com with ESMTPSA id z31sm12834974qtb.0.2021.03.01.14.43.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Mar 2021 14:43:31 -0800 (PST) Sender: Tejun Heo Date: Mon, 1 Mar 2021 17:43:31 -0500 From: Tejun Heo To: Saravanan D Cc: akpm@linux-foundation.org, mingo@redhat.com, x86@kernel.org, dave.hansen@linux.intel.com, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, kernel-team@fb.com Subject: Re: [PATCH V6] x86/mm: Tracking linear mapping split events Message-ID: References: <20210218235744.1040634-1-saravanand@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210218235744.1040634-1-saravanand@fb.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Thu, Feb 18, 2021 at 03:57:44PM -0800, Saravanan D wrote: > To help with debugging the sluggishness caused by TLB miss/reload, > we introduce monotonic hugepage [direct mapped] split event counts since > system state: SYSTEM_RUNNING to be displayed as part of > /proc/vmstat in x86 servers ... > Signed-off-by: Saravanan D > Acked-by: Tejun Heo > Acked-by: Johannes Weiner > Acked-by: Dave Hansen Andrew, do you mind picking this one up? It has enough acks and can go through either mm or x86 tree. Thank you. -- tejun