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 EE163C433E0 for ; Thu, 28 Jan 2021 23:43:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C1CC864DE7 for ; Thu, 28 Jan 2021 23:43:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231194AbhA1XnL (ORCPT ); Thu, 28 Jan 2021 18:43:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49036 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229692AbhA1XnI (ORCPT ); Thu, 28 Jan 2021 18:43:08 -0500 Received: from mail-qv1-xf2d.google.com (mail-qv1-xf2d.google.com [IPv6:2607:f8b0:4864:20::f2d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F4C8C061573 for ; Thu, 28 Jan 2021 15:42:28 -0800 (PST) Received: by mail-qv1-xf2d.google.com with SMTP id n3so3678798qvf.11 for ; Thu, 28 Jan 2021 15:42:28 -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=88m+q95nUn6HzzgeiCXX4W5ncIMh64ZtHe7euOuMD0k=; b=WQnn3c0jSE0t2Cb5s3R24Sa0z+5ZqJnzkHpWW7AOTXOt2rs8glv1Nwpj2pMj3KygFY ER9kHZHS2Er+6m4D0YppDAbD6GckxAaauLfprzky6NEPx4HS9thT2bL3L4/MsDBMMXeY gqP2a7zz8nLkzuZkaHLtkmZREsrZnkRMtlX9xLwz7itp5gewQRM5UmYwGyUdKNLWIZ+u bnjZmYrUT8I3adYP9GjByuDOReAvKlSsgW6pvEChinJ3BQurF/vXBSjcvhz3NKtFlPbU 2CWDX7Kzlk13wGO6V1AMPp741pe4t68pxR6QawNMDpBABEXWlGlWOY13R4T6O3nTqBKP xMYw== 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=88m+q95nUn6HzzgeiCXX4W5ncIMh64ZtHe7euOuMD0k=; b=rXUeU71q+EQIzkWy6h5wH2YJlC3w3vM2U9j4wKgBZqfvLC038G4E9CBFO8tvhB03Mj s2e3z26Ibjbg532rUld6Di2xcMAT1YMDbG5fmJhvgScdMfhpgkDaRn7E7vQQYSQ45M/T oLhtECsFKCa8J6aLeOJjwfdOcAWaxyhEnCj1NLTBv3JSYLf8dooH0YsQVasYanwjhWqx xCrCDaL2/vLR/UoK5DX8mLd5rJrrIno/coePucJsWCKnYAoWKT30rjXzdtrHD+pSwX6+ N3aVUUdYMuozCJa13JVMzdmePgpbWGo6xbIJH5fxLxvmwTiA0bFWzT4qWnOiktzu+Bgs EeCg== X-Gm-Message-State: AOAM533SnTluy7LXINlhLQW0WdagT3fvq0Stb0v5OpkWx6fSJBE7XIRu yyxaJ7MCGTVqY0APJD1tMR6678iFbLg= X-Google-Smtp-Source: ABdhPJx+YPrFP4QWmDosZNRQSw/GsbcFXYZ4lHrBU3+7m+vb7tSoCdHfpp8GIxJnDwI4VWs4FpvwUg== X-Received: by 2002:a0c:9ccb:: with SMTP id j11mr1715339qvf.44.1611877347303; Thu, 28 Jan 2021 15:42:27 -0800 (PST) Received: from localhost ([2620:10d:c091:480::1:86fa]) by smtp.gmail.com with ESMTPSA id w28sm4394354qtv.93.2021.01.28.15.42.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Jan 2021 15:42:26 -0800 (PST) Sender: Tejun Heo Date: Thu, 28 Jan 2021 18:41:34 -0500 From: Tejun Heo To: Saravanan D Cc: x86@kernel.org, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, willy@infradead.org, linux-kernel@vger.kernel.org, kernel-team@fb.com, linux-mm@kvack.org, songliubraving@fb.com, hannes@cmpxchg.org Subject: Re: [PATCH V6] x86/mm: Tracking linear mapping split events Message-ID: References: <20210128212048.oopcyfdf4j2lc663@devvm1945.atn0.facebook.com> <20210128233430.1460964-1-saravanand@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210128233430.1460964-1-saravanand@fb.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 28, 2021 at 03:34:30PM -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 Thanks. -- tejun