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 A622CC25B78 for ; Wed, 29 May 2024 02:18:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 1A1E46B00A4; Tue, 28 May 2024 22:18:27 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 152BD6B00A6; Tue, 28 May 2024 22:18:27 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 01A446B00A8; Tue, 28 May 2024 22:18:26 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id CE4B66B00A4 for ; Tue, 28 May 2024 22:18:26 -0400 (EDT) Received: from smtpin23.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 8D8E640775 for ; Wed, 29 May 2024 02:18:26 +0000 (UTC) X-FDA: 82169824212.23.364D732 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) by imf26.hostedemail.com (Postfix) with ESMTP id AD7F0140008 for ; Wed, 29 May 2024 02:18:23 +0000 (UTC) Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=StLg2C1b; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf26.hostedemail.com: domain of ying.huang@intel.com designates 198.175.65.10 as permitted sender) smtp.mailfrom=ying.huang@intel.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1716949104; 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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=tzttZNmcy42eSOQ7ciCC9u+fDaX7yxxWRoyN0EY1wkQ=; b=mUp5uGeqYj8B/xg6GO7pA2xOqLjwj1PjXXgihMMPrsBI4zBClN83NHu6iwhCuHAiBHDz7G xJJZifuxgbuk3I4QSfieY5UO28gifzvqu+Du5fxRhKFLAg7neRYuIzbhmADH+B6czfYuIc ZkWqjeHzBXOt4lOX+ceS/1cZsSxwFfU= ARC-Authentication-Results: i=1; imf26.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=StLg2C1b; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf26.hostedemail.com: domain of ying.huang@intel.com designates 198.175.65.10 as permitted sender) smtp.mailfrom=ying.huang@intel.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1716949104; a=rsa-sha256; cv=none; b=gFpg7IHrRlBdaWnh4Ng8cc1yBmvd+Kg+ige8c4vzLAUHE4dWAzlVvcJnYt6Rv4/+lOzM6d UITveyrEja2of5PPUpl5AapkepUqbUOcNtrH+1r47OHm/x27YRiC4z0Gu8Oz63FQhzttqx StNj+nTEQPvcF4MY7Uw+ZLyGbCN5aQU= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1716949104; x=1748485104; h=from:to:cc:subject:in-reply-to:references:date: message-id:mime-version; bh=Dp0w0esPZHFbxFaEukOyeyuxS35gYViPUk4+1XQqDMo=; b=StLg2C1bq6cvRDavt5a0cR+qY1ovYwIGWmvHPLe/x9mrMuMWCxEqUiIV DLQf6qvWcx86aJMEL/dKIWAnyvKuf4UmiiQluGlbWojNvrKm4jzqfvpBf Ci0pb+YsT3dVFf3mdPmMr720VMM0nmj9/FoKHsnuMaH2LTpBqzE/Bs/8h agYol4R93m+2Dm/YHEsuzlA0/fBufM5vu2AnTgbqMtMjqJHb9OlhgawpI usNGNJx7tq9nFJAUi0TAPLlVNuKa/F3szsKZmSHARs4wSGTAxso49F3Aj 3yP0GASLmDVidSizz0rPYDWIKlwak4IGRoZQn8S9aa1gZU66JkZHwUHAQ Q==; X-CSE-ConnectionGUID: 6a+IcSPTQgmRvW0Nal2FbA== X-CSE-MsgGUID: rJNFQ+03RSWPL2ykomAArg== X-IronPort-AV: E=McAfee;i="6600,9927,11085"; a="30830782" X-IronPort-AV: E=Sophos;i="6.08,197,1712646000"; d="scan'208";a="30830782" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 May 2024 19:18:22 -0700 X-CSE-ConnectionGUID: JIG75TKJSjer5iNdObqoqQ== X-CSE-MsgGUID: HjV1AhmCTkWHJYrEayPf+g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,197,1712646000"; d="scan'208";a="35740713" Received: from unknown (HELO yhuang6-desk2.ccr.corp.intel.com) ([10.238.208.55]) by orviesa006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 May 2024 19:18:18 -0700 From: "Huang, Ying" To: Byungchul Park Cc: Dave Hansen , , , , , , , , , , , , , , , , Subject: Re: [PATCH v10 00/12] LUF(Lazy Unmap Flush) reducing tlb numbers over 90% In-Reply-To: <20240527225843.GA50818@system.software.com> (Byungchul Park's message of "Tue, 28 May 2024 07:58:43 +0900") References: <20240510065206.76078-1-byungchul@sk.com> <982317c0-7faa-45f0-82a1-29978c3c9f4d@intel.com> <20240527015732.GA61604@system.software.com> <20240527225843.GA50818@system.software.com> Date: Wed, 29 May 2024 10:16:26 +0800 Message-ID: <87le3t5pmt.fsf@yhuang6-desk2.ccr.corp.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=ascii X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: AD7F0140008 X-Stat-Signature: t9f349on7cxk4mkddxew6n5fbtkk75yb X-HE-Tag: 1716949103-299786 X-HE-Meta: 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 hh/XgsIh 97aJ9jsHY+ldMHC2CAIbUS8zKy7oXqve1M6X9sw59srUrJK3ID4qeu4i9IUrr4ca5qsRlarlBJERfFcCAMFTNry4g+oxJn3B6hYDL28TuauDl65GWo6SFv82b+1rKZ4VLaHsKiEcxKaq6515dUX/qjmhWO0EqB2ukwG663oOuzP1I+tOsdUXDLnJffbjvhbsyWw1uH8/QdKK7uhw= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Byungchul Park writes: > On Sun, May 26, 2024 at 07:43:10PM -0700, Dave Hansen wrote: >> It has absolutely not been tested nor reviewed enough. I hope the > > It has been tested enough on my side, and it should be reviewed enough > for sure. I believe that you have tested and reviewed the patchset by yourself. But there are some other cases that you haven't thought about enough before, as Dave pointed out. So, I suggest you to try to find out more possible weakness of your patchset. Begin with what Dave and David pointed out. > I will respin after rebasing the current mm-unstble and > working on vfs shortly. > > Byungchul > >> performance gains stick around once more of the bugs are gone. -- Best Regards, Huang, Ying