From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E12962F2A for ; Sat, 13 Apr 2024 01:05:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712970339; cv=none; b=JJjE2Zc4YGR0CwpMfejnL664aJAW7v7hvsZ1zfZT4fFj8pYPhTfUxga/nTYxn9uYeqI6fqy2cd0KOqYbshQj9P60u+wDyi7K1M5Pk/bdFBDP8tGirCyyLV/P2iSs89lw3TvoV67xoSXlUzG1WUIE8E38fGqdiCxWT4S7WblAAk8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712970339; c=relaxed/simple; bh=dHt26m98Cl1jEADlnr5zi5IeaUXr8GpABdUliyPfNeM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=JUPdRBY2ES8T7E0EsvZiMhgoQeV7F4oE/Ko2s5WU4ZYudeuP0R8yzYkECO1msb2yBtLSo66o56wVECrI+4x95RcjFAWdhIKIIZiYowHsBgmBuz10RYKeJ2zvDPYHyoS9UssVdxOPga6oLNLKyP6pIGZvYYKOM3NgM9wfWJwYfp4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=oQoGRz9q; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="oQoGRz9q" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=ZCZYjLkgB6G67OXLnc2JUYOap4XC9wLoHWTQr08jEBw=; b=oQoGRz9qnOrPl6ib+8HYrCaLPI FVyu9OfFA/QRnapcD5uCQ4mXPW6mzjXF840ZQVTzt0geTJrLOdTr/xvtnqJkHyPYZOw+IJ1ub/bH/ WREvcdDdYPq1po8QOLjJxQV2eBxvDgZa2OujI4GJlghnIOPNqzj/GyvODA/HAx5HthS1iLwpnqe9p FV0JgkdI8eViLjZkZvrww/3kI+lGeBTdDOZzVdeRR6jICLlJh35iE6ThNAVP9nofZ+xWVnTbsQ73f bCFVsJ81rQqjWRkijCiiNlVyW3VKQ3rJufkel4wBOnDVg4+iio1g8HO+T+wmyiYukshJDDfLfJl0s g98TFRCA==; Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1rvRpj-0000000AP7E-2MaG; Sat, 13 Apr 2024 01:05:31 +0000 Date: Sat, 13 Apr 2024 02:05:31 +0100 From: Matthew Wilcox To: Andrew Morton Cc: Kefeng Wang , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH v3 0/2] mm: batch mm counter updating in filemap_map_pages() Message-ID: References: <20240412064751.119015-1-wangkefeng.wang@huawei.com> <20240412161217.c7dc1af77babe5004bd3e71d@linux-foundation.org> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240412161217.c7dc1af77babe5004bd3e71d@linux-foundation.org> On Fri, Apr 12, 2024 at 04:12:17PM -0700, Andrew Morton wrote: > On Fri, 12 Apr 2024 14:47:49 +0800 Kefeng Wang wrote: > > > Let's batch mm counter updating to accelerate filemap_map_pages(). > > Are any performance testing results available? Patch 2/2 says 12% improvement