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 F083AC4345F for ; Fri, 12 Apr 2024 12:54:19 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 607096B0093; Fri, 12 Apr 2024 08:54:19 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5909C6B0095; Fri, 12 Apr 2024 08:54:19 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 409846B0098; Fri, 12 Apr 2024 08:54:19 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 2094C6B0093 for ; Fri, 12 Apr 2024 08:54:19 -0400 (EDT) Received: from smtpin16.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id CC6AE120E5D for ; Fri, 12 Apr 2024 12:54:18 +0000 (UTC) X-FDA: 82000872996.16.391F797 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by imf24.hostedemail.com (Postfix) with ESMTP id 8EA8E180004 for ; Fri, 12 Apr 2024 12:54:16 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=ZWD4Rad4; dmarc=pass (policy=none) header.from=redhat.com; spf=pass (imf24.hostedemail.com: domain of david@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=david@redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1712926456; 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=mqYWIcV1gjcgAg3ixtte8scUjNY/E9W4ASBcBW6QoeY=; b=s6WdWHPNwPt/UDeKQMbcCaIREjCBMmCX78wg4whNqqSEaZmPRs6xvwuWE3rb/wdgts55Dp FHRnv+LsG2Il2qVllZmhoIJ5e6OchhmC4RhZ5Xz9kyBCGnum+m5ZEzOUCCcFkzY405Kt2p zwYC0f38X4xI3nqb6B2LEay/ADZs900= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=ZWD4Rad4; dmarc=pass (policy=none) header.from=redhat.com; spf=pass (imf24.hostedemail.com: domain of david@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=david@redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1712926456; a=rsa-sha256; cv=none; b=vG+zi/kcx6OViXyZoUndxZ5Xst+qz7FUL1GDgnsAdC824n37U32ebU5xXEgUGgnWu17Gei dOTA2jfwPSD4qdtwJnBea1/sx5BfOmRGl6P6MKasM+ibJAzs9JDoMoTdUwhdul3NsdeGFh uazWjBV8YXxElJOC9gMzvOoaNvyUYEE= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1712926455; h=from:from: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:autocrypt:autocrypt; bh=mqYWIcV1gjcgAg3ixtte8scUjNY/E9W4ASBcBW6QoeY=; b=ZWD4Rad4I8Sk1q4ef5w37wumvxms4Fv893dpcVkriD+xLljJ4d6w4q5p8T6innYT+fVrsE jwjZs3DhriqlRFVAlJtKifr56GMlNw6ywaKn6qiBtxeb31AF5azisUKbDIqc+Jfw3F/uCD 1PzL0saaEZNdCdmhjz0iBFg73FTKuIo= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-282--ACQjOO7O3mJE0hFCttDFQ-1; Fri, 12 Apr 2024 08:54:13 -0400 X-MC-Unique: -ACQjOO7O3mJE0hFCttDFQ-1 Received: by mail-wm1-f69.google.com with SMTP id 5b1f17b1804b1-41485831b2dso6349485e9.3 for ; Fri, 12 Apr 2024 05:54:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712926452; x=1713531252; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:from:references:cc:to:subject:user-agent :mime-version:date:message-id:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=mqYWIcV1gjcgAg3ixtte8scUjNY/E9W4ASBcBW6QoeY=; b=bze7Dps0wjRHsdjTdrYn8B3rnQlhHTg6wUrSCb/PfTQvgubljEd++gnbySjfdtrURR fV1qhAd6c5GIvbMzU5pVbWISic+BL6Xsn7LbzFNOnOOc7SgEYRDo34IKsxgu3AKnblRK vtcu3jX6zwYxYi7p6bFsj4Wmivdu7s20esirMqjUBMKTCxRA7B2piQ5wQdjhH97vVbOP yRNZ8izzPGKtLZaErHCrEqyUOgjPZhyFR2kWQbwVp3YWwH5KDmut3UjsL0wYcSa3S5TZ 926I4lhPEubKiRFQRQJEVP9wLpgPJnc8lXrE+CN8pVorn7EvhPQQZzzD6c4cme+o+Yj8 cvww== X-Forwarded-Encrypted: i=1; AJvYcCX9MT1OH3XcXNzgvJQKmZdhHte7HnZ+hf5y8lIdqR9lSFbm+AgUHvtWwd+3V+shDzNi5oSX4HgPoA2BiJnKGa3gWAw= X-Gm-Message-State: AOJu0YzTRD+SI0TUuC+BItLPha5u5qVTerMiEi57eLcCnfJ+I4b1memU RIovHiPLiAKxYb3Xz/5igkBptQtfBCujPJDxnkRDX5v+WlKsJJoFbjUkBu2VaumldaH44oYPc1v AC4st9vdp/WJh5GulLhlpzvZQSh1uGeMjssgp5xQmbdM0LF0P X-Received: by 2002:a05:600c:314c:b0:417:e4ad:d801 with SMTP id h12-20020a05600c314c00b00417e4add801mr2599175wmo.31.1712926452375; Fri, 12 Apr 2024 05:54:12 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEr/eOkg933BDIbNCu49+VfolGPqBXhALiVh3BLlF87UBDv4CEhFtLQvOIIlqhB0tP2pVvGaw== X-Received: by 2002:a05:600c:314c:b0:417:e4ad:d801 with SMTP id h12-20020a05600c314c00b00417e4add801mr2599157wmo.31.1712926452016; Fri, 12 Apr 2024 05:54:12 -0700 (PDT) Received: from ?IPV6:2003:cb:c730:f600:afa2:4e8a:448a:9831? (p200300cbc730f600afa24e8a448a9831.dip0.t-ipconnect.de. [2003:cb:c730:f600:afa2:4e8a:448a:9831]) by smtp.gmail.com with ESMTPSA id p1-20020a05600c358100b00416b28651e1sm5593384wmq.36.2024.04.12.05.54.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 12 Apr 2024 05:54:11 -0700 (PDT) Message-ID: <20e36996-0c78-4b81-8e91-1035d5ce0652@redhat.com> Date: Fri, 12 Apr 2024 14:54:10 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 0/4] mm: add per-order mTHP alloc and swpout counters To: Barry Song <21cnbao@gmail.com>, akpm@linux-foundation.org, linux-mm@kvack.org Cc: cerasuolodomenico@gmail.com, chrisl@kernel.org, kasong@tencent.com, linux-kernel@vger.kernel.org, peterx@redhat.com, ryan.roberts@arm.com, surenb@google.com, v-songbaohua@oppo.com, willy@infradead.org, yosryahmed@google.com, yuzhao@google.com, corbet@lwn.net References: <20240412114858.407208-1-21cnbao@gmail.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: <20240412114858.407208-1-21cnbao@gmail.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 8EA8E180004 X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: h9d64tiw6b7mnf17dz7nitb1zjftb6rg X-HE-Tag: 1712926456-421688 X-HE-Meta: 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 72jNYoXK /DMbS4ncYE70cj+OBMcK7HRQuMgO7RLIXKzlJrBVDkbe2w0e51OZLfqUYwoVd62T0jHFEwHBC1FCXzuYob5azwLoKygO2bDlKE9mOBPPsTfwsa7m2pzJS53hojhdADxCJzEDaLMQFQcfdcOn/o6433SPKgYjju/ENnTch75Wh0AsFo8lV2OHeLvkOybBymLxShtOSYi1oiN88nZnPYIxc9+BoeH9a4IucpND+4UEKftFXYClTdzWez9YWGLEHA4x224RwIcejDAXLTDNTj8Pj5uhslJew/oGlthQq1CR3RWLN9DcmUS6ulNmwtwb1Poh0TntwGvEJNbFef4EYz5Fy2WCPwp4XsRhi+o41kILyzgi2YSRSQLS//6Nqy1VZ04Ro/8rUTvteHhSLkBlkeJzHJmwVs0DWeFT3OP4euIPIaUmlPm3TJXg3MnZGBoCDQynytzWs5aKlM0BsFL40ODnoQzXwuIAxU7CYXOvx 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 12.04.24 13:48, Barry Song wrote: > From: Barry Song > > The patchset introduces a framework to facilitate mTHP counters, starting > with the allocation and swap-out counters. Currently, only four new nodes > are appended to the stats directory for each mTHP size. > > /sys/kernel/mm/transparent_hugepage/hugepages-/stats > anon_fault_alloc > anon_fault_fallback > anon_fault_fallback_charge > anon_swpout > anon_swpout_fallback > > These nodes are crucial for us to monitor the fragmentation levels of > both the buddy system and the swap partitions. In the future, we may > consider adding additional nodes for further insights. > > -v6: > * collect reviewed-by tags for patch2/4, 3/4, 4/4, Ryan; > * move back to static array by using MAX_PTRS_PER_PTE, Ryan; > * move to for_each_possible_cpu to handle cpu hotplug, Ryan; > * other minor cleanups according to Ryan; Please *really* not multiple versions of the same patch set on one a single day. -- Cheers, David / dhildenb