From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pz2-f38.google.com (mail-pz2-f38.google.com [74.125.228.38]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F0166474261 for ; Mon, 28 Sep 2026 08:27:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.228.38 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790584055; cv=none; b=Kxayrvbh64QKBKkZDCCTSxCwdyqLTbmJzLcnnJ3YvpgAAUb+Aea594OfDMriSvuXwtZtqfodaUqklINGAAY6ioX7JFD/pMCTc/Pv22E/4vVwmWxcCLrq/AbqyqYXbPBExnkmbPey9xSUO3euYT31Z3TCF4EA6tCWP4eo6Zrfy9w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790584055; c=relaxed/simple; bh=qAKPddpqFgfHmTQw4mD4LolSxZQhiX47J3WLDmhJNXc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uxQprENDGhRw3xk1KOQpNe/ujPfJ+VsDZw0VgI6dqagRk0yMMYOU7y6qLVwcMsTOLJmI5Cv3cvkhyqzx+ZX8jW60u335sD5utoWEiJ9cp2sniCOVYeOhrilY9XsL3b/slMQZK4ufpzUu1kwPbZMpC7MxHkcp3Qi4MLjIY1uq2Vc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=LU0862Q2; arc=none smtp.client-ip=74.125.228.38 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="LU0862Q2" Received: by mail-pz2-f38.google.com with SMTP id d2e1a72fcca58-88206fc44c6so1146529b3a.2 for ; Mon, 28 Sep 2026 01:27:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1790584053; x=1791188853; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=XfTNwTEf8cXEoiVJjaR2wzaM0AVgLL//fGyHvTOkwQs=; b=LU0862Q2vbkM8L70ECClA6fPi7+gq6ZxFDngKIrBT1sWsKXYt7AxZveVgNS+4JaQhy lJOMXW681dRW8Xtvr/0MGGXEV0h2vmvn6xXc4TQD8jvvHVHow0M747uwJW6/XauN8QOV 6lShKGYxn5my6xEmfiRRNtCxRBdJ5KQlc9T1Q= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790584053; x=1791188853; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=XfTNwTEf8cXEoiVJjaR2wzaM0AVgLL//fGyHvTOkwQs=; b=GWl87/XkYAl1RJMiyLcyCi7atxgbdtDhe08Y2Cb3SnJXcvaDeYLCtamgr/VMxBmyZD 58UNkLqTzr+nDUUZmBDQ9cQFfez/+Gzo/mzQReAC5R/HqBPFs5eW7c/ZdDfumZ8W/Tl7 q9sipDJ/BORRO+RfD6QtQXEXQH2vJBRON2LCf8DIBtCodgPiXtRIhkcZV8R5aG5nOLD5 ZnMEcrq39QaQdKe/U+K2VIGGLXrxtRJzNEmLXN5haUQFXPV1qf0io4ahL6U6iS6Z9FLK BNqptKiqd93OS+M4HaZbdNbtIPANn1/zvQ+/hG+IafOALE/Ywa9cSc8fQef+GDkeTk/D Venw== X-Forwarded-Encrypted: i=1; AKwUvByBp6wTbV9/G27i6dLm0z66pcKYPXX3ZsYEz9pI2UlQ8BV7qMv9LbAjVC7mCEHXiuYw6KRZ8SGuaXWdYic=@vger.kernel.org X-Gm-Message-State: AFuF++nk0+hZZts2WdJkvMbF0BDrY8y+QlOhEGCBwg7ImXOOhAOpAE0E YA8VLVYWwf3QEBD3PVOI/7f3J11AttoRhBDN1JdRUk1Qmpbx/oXr47Ycre6dby6C1Q== X-Gm-Gg: AYBFou2YDwEB3+SsqP31/lB5v+7WClXhmoOadlaYE7RQcgx7sRhn6Gr32bTDctiswy/ vLcwtToEn1Mi3b7ZTGuzX8DY9wH9tqD8prYEU1VjPtBdZN9m98QHdv8T15pnGCN/ME3R8+9fxMJ sKzfDv79GyzrwR36a6cHXRh5yVaqpVcNr/0fiAYBNwS5W0UZJCCuF9aEN6hIObiKK8X7Ux4Otch alRpmnY28ST8gJWvsltk0DdE9pjnxQw7ASS6KD78t2zNIFx1C0EwKDq51Rr7vkhXZqSereaEDT9 x6LY7Pwl9siCYIUsHOeMX1SmaxQZpnGCEehOWpfYBxLPWqHkL6ZnutYgSjdiNROPp3weyR+dFFw 2i0IpwKgQzVeSrCr9JhlDzWuH05eo8RtK+Oah1GJ9EB3MbagSPU4/a4vMrj/ZtEIpCwEjoPVwFm xAuo+Rc4zuEqcJwLli4gpZZ5Y64wyvfmdzzWpzz4TaizD64B7p0g2MKhNL7MDFPhZKWBEeqtviM zT6r1ddzXJRSJczzcA5gQpI6nxU0Di3L0E4lV8= X-Received: by 2002:a05:6a00:7619:b0:880:8fe8:a3ea with SMTP id d2e1a72fcca58-8808fe8a798mr3659738b3a.45.1790584053122; Mon, 28 Sep 2026 01:27:33 -0700 (PDT) Received: from google.com ([2a00:79e0:2031:6:fdbe:318b:98fe:bd96]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-87feae8d827sm3676965b3a.36.2026.09.28.01.27.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Sep 2026 01:27:32 -0700 (PDT) Date: Mon, 28 Sep 2026 17:27:23 +0900 From: Sergey Senozhatsky To: Michal Wilczynski Cc: Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Russell King , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Minchan Kim , Jens Axboe , Andrew Morton , linux-kernel@vger.kernel.org, llvm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-s390@vger.kernel.org, linux-block@vger.kernel.org, Yann Collet , Nick Terrell , Gao Xiang , Chao Yu , Jaegeuk Kim , Herbert Xu , Phillip Lougher , Sungguk , Jaehoon Chung , Marek Szyprowski , linux-erofs@lists.ozlabs.org, linux-f2fs-devel@lists.sourceforge.net, linux-crypto@vger.kernel.org, Sergey Senozhatsky Subject: Re: [PATCH RFC 0/9] lib/lz4: stop forking upstream LZ4, vendor it instead Message-ID: References: <20260925-lz4-vendor-upstream-v1-0-1c7ffbe21c4b@samsung.com> Precedence: bulk X-Mailing-List: linux-kernel@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: On (26/09/28 13:25), Sergey Senozhatsky wrote: > On my x86_64 build .text size change seems to be quite significant: > > ./scripts/bloat-o-meter lib/lz4/lz4_compress-old.ko lib/lz4/lz4_compress.ko > add/remove: 0/2 grow/shrink: 5/1 up/down: 8022/-1755 (6267) > Function old new delta > LZ4_compress_fast_continue 6028 10486 +4458 > LZ4_compress_destSize 158 3112 +2954 > LZ4_compress_fast_extState 4078 4597 +519 > LZ4_saveDict 82 153 +71 > __UNIQUE_ID_modinfo_466 52 72 +20 > __pfx_LZ4_compress_destSize_generic 16 - -16 > LZ4_loadDict 261 204 -57 > LZ4_compress_destSize_generic 1682 - -1682 > Total: Before=14756, After=21023, chg +42.47% D'oh you actually point that out in the commit message, sorry for the noise.