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 798EDC3DA4A for ; Wed, 14 Aug 2024 12:02:54 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 029286B0085; Wed, 14 Aug 2024 08:02:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id F1B356B0088; Wed, 14 Aug 2024 08:02:53 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D6E516B0089; Wed, 14 Aug 2024 08:02:53 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id B5CF66B0085 for ; Wed, 14 Aug 2024 08:02:53 -0400 (EDT) Received: from smtpin17.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 4EE02C0E2E for ; Wed, 14 Aug 2024 12:02:53 +0000 (UTC) X-FDA: 82450714626.17.8F87986 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by imf13.hostedemail.com (Postfix) with ESMTP id B6DB42003A for ; Wed, 14 Aug 2024 12:02:50 +0000 (UTC) Authentication-Results: imf13.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=H2HvMOoD; spf=pass (imf13.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1723636875; 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=GMXMQTZDYE6luh611XN2OI8EVP3+a0ynEUGI8ZYLzb8=; b=3n5zYT71seCJsmorf+f+cc6Zj/dNLPpKgNUJo5SmWy0vLy997MaXJ/Ac3DgsakQyTFw0kF vGkHsmpyrOWw4kUsP1gpFoYKhn7jXzCxqsKQB/kUYBvIHkDR+Rh1hu9+Bg/+ZwC8GCE6Ud bNjvcqMrUHVresrBgCKF5PhEcr81wVA= ARC-Authentication-Results: i=1; imf13.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=H2HvMOoD; spf=pass (imf13.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1723636875; a=rsa-sha256; cv=none; b=LgT9cSfgn6WrIWggLua//yXkj9axmo4jJIRDsg2MZ+/dKIeg5S83eDR+8GEGOBfrSeOuBl 6hatnwg/5J/VJ5x51Y4rWfNfyY/9hd3y8WrHNfg2qweWLz8QApWD25ASVCAzy3RhCTb8T7 FhBtKBuijokiJ5uzKoj7gws2S/ERFeE= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1723636969; 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=GMXMQTZDYE6luh611XN2OI8EVP3+a0ynEUGI8ZYLzb8=; b=H2HvMOoD0gQsvgHu39G3eRM/rgn5xMns9gpxEJkltOrZoGltTIf8Xn08nmDzInh1FX8GFa v+M72UmlKtNuWwLKG7vSHfk02aTlmj0LkjSrDEr+Dz1fli8nSmh8DIvfg70mdD0Y8Hrgpm mcp6s74bdr7Jx4IysFhwulk+K5g4r48= Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-241-e87ZlwezNjK66QzRsonyiw-1; Wed, 14 Aug 2024 08:02:48 -0400 X-MC-Unique: e87ZlwezNjK66QzRsonyiw-1 Received: by mail-wr1-f70.google.com with SMTP id ffacd0b85a97d-3717cc80ce1so145276f8f.0 for ; Wed, 14 Aug 2024 05:02:48 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723636967; x=1724241767; 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=GMXMQTZDYE6luh611XN2OI8EVP3+a0ynEUGI8ZYLzb8=; b=RjHrOix0FaojB/1Bvwe+AmLi+w2K8zYRs9//yaRvygup+KaShh130pm0Lkfd5pUJ0j zKv85NQe//x8kZzxuM5K+noDhLrGXjq2U4ZypVTQ4raJIqbEDAdEwwH4t2LWDHrFeP11 qdSNtSPEocZ63X4OkDJtocwSbowe1IRWN61AZxYrNwUPKcE2dhlvk+8pKRq25RwMXWA8 3i5oc7tY7sYfm3twO8438VjDe8LzSQBFpbGDs2PKZGACx/S2NDHsol+84flR8dYTxIPq lje2Bpmk+Owzufw6bilcYoQ+9aknDvY+UjIwepuhyRSL5rGGP4WLOkrEUShMgiW7N/Os bviQ== X-Forwarded-Encrypted: i=1; AJvYcCVmnXxBpkl9DRvtHHV6RqmQHClJhe8kJ0DnDrciVfT4fazG/yZhOW3g71jUc89Nr4bixZ8iyRdV0Q9pUHj/uLVIhKE= X-Gm-Message-State: AOJu0YzdmU7jGSW4dCyp72RNDcdmTgiB/9vcBYYW7vwfPffgKSTY2DEu XefUjo68va/hkfdotTMMa7Xlsg6475qLaSaVHaIOBNZKmQ3CM93KKdx+E3OkKC9jIWi5+VRLexk fAynXKkQvv8Kgb0GwdZx5fKHE/WzGCITR11JPMPWSM8oP177J X-Received: by 2002:adf:f542:0:b0:371:6ff3:d578 with SMTP id ffacd0b85a97d-37177756804mr1908591f8f.6.1723636967263; Wed, 14 Aug 2024 05:02:47 -0700 (PDT) X-Google-Smtp-Source: AGHT+IETUgVE1o5r0CQo3MheUwAWZg3aCLbqDQBvgbZWPvVeMLYUHQzD9ZMpTqtmvMSJiclXMA/p+Q== X-Received: by 2002:adf:f542:0:b0:371:6ff3:d578 with SMTP id ffacd0b85a97d-37177756804mr1908555f8f.6.1723636966642; Wed, 14 Aug 2024 05:02:46 -0700 (PDT) Received: from [192.168.3.141] (p5b0c6e46.dip0.t-ipconnect.de. [91.12.110.70]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3717d27b9d4sm486496f8f.21.2024.08.14.05.02.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 14 Aug 2024 05:02:46 -0700 (PDT) Message-ID: <69f480d6-2dd8-4efb-9516-70d74eceedd5@redhat.com> Date: Wed, 14 Aug 2024 14:02:44 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [linus:master] [mm] c0bff412e6: stress-ng.clone.ops_per_sec -2.9% regression To: Mateusz Guzik Cc: Yin Fengwei , kernel test robot , Peter Xu , oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Andrew Morton , Huacai Chen , Jason Gunthorpe , Matthew Wilcox , Nathan Chancellor , Ryan Roberts , WANG Xuerui , linux-mm@kvack.org, ying.huang@intel.com, feng.tang@intel.com References: <202407301049.5051dc19-oliver.sang@intel.com> <193e302c-4401-4756-a552-9f1e07ecedcf@redhat.com> <439265d8-e71e-41db-8a46-55366fdd334e@intel.com> <90477952-fde2-41d7-8ff4-2102c45e341d@redhat.com> <6uxnuf2gysgabyai2r77xrqegb7t7cc2dlzjz6upwsgwrnfk3x@cjj6on3wqm4x> <5a67c103-1d9d-440d-8bed-bbfa7d3ecf71@redhat.com> <5c0979a2-9a56-4284-82d2-42da62bda4a5@redhat.com> <817150f2-abf7-430f-9973-540bd6cdd26f@intel.com> <116e117c-2821-401d-8e62-b85cdec37f4a@redhat.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: 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: 8bit X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: B6DB42003A X-Stat-Signature: 8k98zsxg17ao39jnero6ywsp6fgntice X-Rspam-User: X-HE-Tag: 1723636970-783998 X-HE-Meta: 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 G6L7E/kn 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 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 14.08.24 13:06, Mateusz Guzik wrote: > On Wed, Aug 14, 2024 at 11:45 AM David Hildenbrand wrote: >> >> On 14.08.24 06:10, Mateusz Guzik wrote: >>> On Wed, Aug 14, 2024 at 5:02 AM Yin Fengwei wrote: >>>> >>>> On 8/13/24 03:14, Mateusz Guzik wrote: >>>>> would you mind benchmarking the change which merely force-inlines _compund_page? >>>>> >>>>> https://lore.kernel.org/linux-mm/66c4fcc5-47f6-438c-a73a-3af6e19c3200@redhat.com/ >>>> This change can resolve the regression also: >>> >>> Great, thanks. >>> >>> David, I guess this means it would be fine to inline the entire thing >>> at least from this bench standpoint. Given that this is your idea I >>> guess you should do the needful(tm)? :) >> >> Testing >> >> diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h >> index 5769fe6e4950..25e25b34f4a0 100644 >> --- a/include/linux/page-flags.h >> +++ b/include/linux/page-flags.h >> @@ -235,7 +235,7 @@ static __always_inline int page_is_fake_head(const struct page *page) >> return page_fixed_fake_head(page) != page; >> } >> >> -static inline unsigned long _compound_head(const struct page *page) >> +static __always_inline unsigned long _compound_head(const struct page *page) >> { >> unsigned long head = READ_ONCE(page->compound_head); >> >> >> With a kernel-config based on something derived from Fedora >> config-6.8.9-100.fc38.x86_64 for convenience with >> >> CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y >> >> add/remove: 15/14 grow/shrink: 79/87 up/down: 12836/-13917 (-1081) > [snip] >> Total: Before=32786363, After=32785282, chg -0.00% > > I guess there should be no opposition then? > > Given that this is your patch I presume you are going to see this through. I was hoping that you could send an official patch, after all you did most of the work here. > > I don't want any mention or cc on the patch, thanks for understanding :) If I have to send it I will respect it. -- Cheers, David / dhildenb