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 84D52C4829E for ; Thu, 15 Feb 2024 23:24:31 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id B68E48D0014; Thu, 15 Feb 2024 18:24:30 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id B18E38D0007; Thu, 15 Feb 2024 18:24:30 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9945A8D0014; Thu, 15 Feb 2024 18:24:30 -0500 (EST) 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 86A438D0007 for ; Thu, 15 Feb 2024 18:24:30 -0500 (EST) Received: from smtpin26.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 5E5F4140EA3 for ; Thu, 15 Feb 2024 23:24:30 +0000 (UTC) X-FDA: 81795619500.26.8B58C13 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) by imf15.hostedemail.com (Postfix) with ESMTP id 2CDB2A000F for ; Thu, 15 Feb 2024 23:24:27 +0000 (UTC) Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=CX0E4ts8; spf=pass (imf15.hostedemail.com: domain of dave.hansen@intel.com designates 192.198.163.13 as permitted sender) smtp.mailfrom=dave.hansen@intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1708039468; a=rsa-sha256; cv=none; b=a4o8RErE1Bg4hqO8P5Ki+VPKwBHg4VaHZawK1Yg5hStWBiM3y2htUP8zA4QFYaUezkULpW vlEDBDveSHQ99xhzJLWwUnpaWguFP1jN2yKqeGAmKKcZ5XQ0ifeoIXeS3FFj4xMk7XuarP F2PQ5tbMKcDeVgamC21/WAt4s9GYQSw= ARC-Authentication-Results: i=1; imf15.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=CX0E4ts8; spf=pass (imf15.hostedemail.com: domain of dave.hansen@intel.com designates 192.198.163.13 as permitted sender) smtp.mailfrom=dave.hansen@intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1708039468; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=besEAXBQIdD5PzM18byzU0r45Vk4lStMjadbe1Ig10k=; b=aHAda0bVh44D4E8H1aUTAEE146/lwoN6GFx2WSzUchB88OXUmRe6ZL1kFOagiVtf7kjNlv dLR4xxpiWQWX0WfWviuMI59WpVMGL6icCtFL5h2j/cnYCTNIEOO8Fxq7sAx7q5m81u2ObS On+WmPsRNddgUbfUZmoNgCBaXD8x71o= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1708039468; x=1739575468; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=c0DueKZiAOAwvmHTn8r0NCMCSCOYfX1U98L77P7a8W8=; b=CX0E4ts8pLHrRWS/+Njf75Rt2i9m505gVI4NLhPq1aKZ0oadv7LZ0sKs uXwbANuXD0Snsgpmxklnr6IliISh61jXnCT/+NHAy6jy7CMLC+hcB0VoW HmGx3T7xYau/c1/8vhgTlvSYR1AMGJap42WmP6AZHKlVS+0bgvogC2kBm HWk2T7Bbtnr1cqGFYtRKFYK8HOLnd1gxNETLwaYInL2qAIxKBz/+ym/lS /WATBFic/j0AZTs/G1ruTeg1L4uEHUIbkFFKz7V0MFOQiu+XtXxz6pbc6 CYgUWj069pxVVjrbHmmJxV/yPpgh2HT6VTSNy2lpedAjZVENY5b3D+jpp g==; X-IronPort-AV: E=McAfee;i="6600,9927,10985"; a="5127836" X-IronPort-AV: E=Sophos;i="6.06,162,1705392000"; d="scan'208";a="5127836" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Feb 2024 15:19:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,162,1705392000"; d="scan'208";a="4077327" Received: from jmjohns4-mobl1.amr.corp.intel.com (HELO [10.209.57.138]) ([10.209.57.138]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Feb 2024 15:19:33 -0800 Message-ID: <38e34171-e116-46ee-8e2b-de7cc96d265e@intel.com> Date: Thu, 15 Feb 2024 15:19:33 -0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 31/35] lib: add memory allocations report in show_mem() Content-Language: en-US To: Steven Rostedt , Kent Overstreet Cc: Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , akpm@linux-foundation.org, hannes@cmpxchg.org, roman.gushchin@linux.dev, mgorman@suse.de, dave@stgolabs.net, willy@infradead.org, liam.howlett@oracle.com, corbet@lwn.net, void@manifault.com, peterz@infradead.org, juri.lelli@redhat.com, catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de, tglx@linutronix.de, mingo@redhat.com, dave.hansen@linux.intel.com, x86@kernel.org, peterx@redhat.com, david@redhat.com, axboe@kernel.dk, mcgrof@kernel.org, masahiroy@kernel.org, nathan@kernel.org, dennis@kernel.org, tj@kernel.org, muchun.song@linux.dev, rppt@kernel.org, paulmck@kernel.org, pasha.tatashin@soleen.com, yosryahmed@google.com, yuzhao@google.com, dhowells@redhat.com, hughd@google.com, andreyknvl@gmail.com, keescook@chromium.org, ndesaulniers@google.com, vvvvvv@google.com, gregkh@linuxfoundation.org, ebiggers@google.com, ytcoode@gmail.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, bristot@redhat.com, vschneid@redhat.com, cl@linux.com, penberg@kernel.org, iamjoonsoo.kim@lge.com, 42.hyeyoo@gmail.com, glider@google.com, elver@google.com, dvyukov@google.com, shakeelb@google.com, songmuchun@bytedance.com, jbaron@akamai.com, rientjes@google.com, minchan@google.com, kaleshsingh@google.com, kernel-team@android.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, kasan-dev@googlegroups.com, cgroups@vger.kernel.org References: <20240212213922.783301-1-surenb@google.com> <20240212213922.783301-32-surenb@google.com> <320cd134-b767-4f29-869b-d219793ba8a1@suse.cz> <20240215180742.34470209@gandalf.local.home> From: Dave Hansen Autocrypt: addr=dave.hansen@intel.com; keydata= xsFNBE6HMP0BEADIMA3XYkQfF3dwHlj58Yjsc4E5y5G67cfbt8dvaUq2fx1lR0K9h1bOI6fC oAiUXvGAOxPDsB/P6UEOISPpLl5IuYsSwAeZGkdQ5g6m1xq7AlDJQZddhr/1DC/nMVa/2BoY 2UnKuZuSBu7lgOE193+7Uks3416N2hTkyKUSNkduyoZ9F5twiBhxPJwPtn/wnch6n5RsoXsb ygOEDxLEsSk/7eyFycjE+btUtAWZtx+HseyaGfqkZK0Z9bT1lsaHecmB203xShwCPT49Blxz VOab8668QpaEOdLGhtvrVYVK7x4skyT3nGWcgDCl5/Vp3TWA4K+IofwvXzX2ON/Mj7aQwf5W iC+3nWC7q0uxKwwsddJ0Nu+dpA/UORQWa1NiAftEoSpk5+nUUi0WE+5DRm0H+TXKBWMGNCFn c6+EKg5zQaa8KqymHcOrSXNPmzJuXvDQ8uj2J8XuzCZfK4uy1+YdIr0yyEMI7mdh4KX50LO1 pmowEqDh7dLShTOif/7UtQYrzYq9cPnjU2ZW4qd5Qz2joSGTG9eCXLz5PRe5SqHxv6ljk8mb ApNuY7bOXO/A7T2j5RwXIlcmssqIjBcxsRRoIbpCwWWGjkYjzYCjgsNFL6rt4OL11OUF37wL QcTl7fbCGv53KfKPdYD5hcbguLKi/aCccJK18ZwNjFhqr4MliQARAQABzUVEYXZpZCBDaHJp c3RvcGhlciBIYW5zZW4gKEludGVsIFdvcmsgQWRkcmVzcykgPGRhdmUuaGFuc2VuQGludGVs LmNvbT7CwXgEEwECACIFAlQ+9J0CGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEGg1 lTBwyZKwLZUP/0dnbhDc229u2u6WtK1s1cSd9WsflGXGagkR6liJ4um3XCfYWDHvIdkHYC1t MNcVHFBwmQkawxsYvgO8kXT3SaFZe4ISfB4K4CL2qp4JO+nJdlFUbZI7cz/Td9z8nHjMcWYF IQuTsWOLs/LBMTs+ANumibtw6UkiGVD3dfHJAOPNApjVr+M0P/lVmTeP8w0uVcd2syiaU5jB aht9CYATn+ytFGWZnBEEQFnqcibIaOrmoBLu2b3fKJEd8Jp7NHDSIdrvrMjYynmc6sZKUqH2 I1qOevaa8jUg7wlLJAWGfIqnu85kkqrVOkbNbk4TPub7VOqA6qG5GCNEIv6ZY7HLYd/vAkVY E8Plzq/NwLAuOWxvGrOl7OPuwVeR4hBDfcrNb990MFPpjGgACzAZyjdmYoMu8j3/MAEW4P0z F5+EYJAOZ+z212y1pchNNauehORXgjrNKsZwxwKpPY9qb84E3O9KYpwfATsqOoQ6tTgr+1BR CCwP712H+E9U5HJ0iibN/CDZFVPL1bRerHziuwuQuvE0qWg0+0SChFe9oq0KAwEkVs6ZDMB2 P16MieEEQ6StQRlvy2YBv80L1TMl3T90Bo1UUn6ARXEpcbFE0/aORH/jEXcRteb+vuik5UGY 5TsyLYdPur3TXm7XDBdmmyQVJjnJKYK9AQxj95KlXLVO38lczsFNBFRjzmoBEACyAxbvUEhd GDGNg0JhDdezyTdN8C9BFsdxyTLnSH31NRiyp1QtuxvcqGZjb2trDVuCbIzRrgMZLVgo3upr MIOx1CXEgmn23Zhh0EpdVHM8IKx9Z7V0r+rrpRWFE8/wQZngKYVi49PGoZj50ZEifEJ5qn/H Nsp2+Y+bTUjDdgWMATg9DiFMyv8fvoqgNsNyrrZTnSgoLzdxr89FGHZCoSoAK8gfgFHuO54B lI8QOfPDG9WDPJ66HCodjTlBEr/Cwq6GruxS5i2Y33YVqxvFvDa1tUtl+iJ2SWKS9kCai2DR 3BwVONJEYSDQaven/EHMlY1q8Vln3lGPsS11vSUK3QcNJjmrgYxH5KsVsf6PNRj9mp8Z1kIG qjRx08+nnyStWC0gZH6NrYyS9rpqH3j+hA2WcI7De51L4Rv9pFwzp161mvtc6eC/GxaiUGuH BNAVP0PY0fqvIC68p3rLIAW3f97uv4ce2RSQ7LbsPsimOeCo/5vgS6YQsj83E+AipPr09Caj 0hloj+hFoqiticNpmsxdWKoOsV0PftcQvBCCYuhKbZV9s5hjt9qn8CE86A5g5KqDf83Fxqm/ vXKgHNFHE5zgXGZnrmaf6resQzbvJHO0Fb0CcIohzrpPaL3YepcLDoCCgElGMGQjdCcSQ+Ci FCRl0Bvyj1YZUql+ZkptgGjikQARAQABwsFfBBgBAgAJBQJUY85qAhsMAAoJEGg1lTBwyZKw l4IQAIKHs/9po4spZDFyfDjunimEhVHqlUt7ggR1Hsl/tkvTSze8pI1P6dGp2XW6AnH1iayn yRcoyT0ZJ+Zmm4xAH1zqKjWplzqdb/dO28qk0bPso8+1oPO8oDhLm1+tY+cOvufXkBTm+whm +AyNTjaCRt6aSMnA/QHVGSJ8grrTJCoACVNhnXg/R0g90g8iV8Q+IBZyDkG0tBThaDdw1B2l asInUTeb9EiVfL/Zjdg5VWiF9LL7iS+9hTeVdR09vThQ/DhVbCNxVk+DtyBHsjOKifrVsYep WpRGBIAu3bK8eXtyvrw1igWTNs2wazJ71+0z2jMzbclKAyRHKU9JdN6Hkkgr2nPb561yjcB8 sIq1pFXKyO+nKy6SZYxOvHxCcjk2fkw6UmPU6/j/nQlj2lfOAgNVKuDLothIxzi8pndB8Jju KktE5HJqUUMXePkAYIxEQ0mMc8Po7tuXdejgPMwgP7x65xtfEqI0RuzbUioFltsp1jUaRwQZ MTsCeQDdjpgHsj+P2ZDeEKCbma4m6Ez/YWs4+zDm1X8uZDkZcfQlD9NldbKDJEXLIjYWo1PH hYepSffIWPyvBMBTW2W5FRjJ4vLRrJSUoEfJuPQ3vW9Y73foyo/qFoURHO48AinGPZ7PC7TF vUaNOTjKedrqHkaOcqB185ahG2had0xnFsDPlx5y In-Reply-To: <20240215180742.34470209@gandalf.local.home> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 2CDB2A000F X-Stat-Signature: rtq65d9x6wpi6fniugqzrcnsmp63fu57 X-Rspam-User: X-HE-Tag: 1708039467-474980 X-HE-Meta: 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 mPbMj7GI qEqgJbiPZlDKekrFks66adARudiLVbXCZpcZdAexWRrolTSqPv7VVxhKqRhazmjAHWmYDnOnnTtRy9oGgxwR3QXDgFl6G37c40Z2UXzR+2bBmxY9Omo2WUWgHW9XUid0XbL4z5Nty7m9J/tMGmVFQc/nMMlstBmnzATT4pRVeb7myrDUoo+9p/EcbkatwyhqbHAh3SJE5GRLyygQmauMqXRoczmHwFVVlV92knrE3VdI0dHr3cXDWlo89ZqDXpu6jCZ8Hzd6on4theqd0ASJ6GJ+tc35gsY1reb+q0jpeUsE4hLU= 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: On 2/15/24 15:07, Steven Rostedt wrote: > Just adding the patches increases the size by 5k. But the rest shows an > increase of 259k, and you are worried about 4k (and possibly less?)??? Doesn't the new page_ext thingy add a pointer per 'struct page', or ~0.2% of RAM, or ~32MB on a 16GB laptop? I, too, am confused why 4k is even remotely an issue.