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 X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 39336C43381 for ; Mon, 25 Feb 2019 14:47:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0862C20643 for ; Mon, 25 Feb 2019 14:47:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727531AbfBYOrP (ORCPT ); Mon, 25 Feb 2019 09:47:15 -0500 Received: from mout.gmx.net ([212.227.15.15]:39885 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727443AbfBYOrP (ORCPT ); Mon, 25 Feb 2019 09:47:15 -0500 Received: from [0.0.0.0] ([54.250.245.166]) by mail.gmx.com (mrgmx001 [212.227.17.184]) with ESMTPSA (Nemesis) id 0LpsIh-1hTByY15Ed-00fiZa; Mon, 25 Feb 2019 15:47:06 +0100 Subject: Re: [PATCH 0/2] Use new incompat feature BG_TREE to hugely reduce mount time To: Hans van Kranenburg , Qu Wenruo , linux-btrfs@vger.kernel.org References: <20190102052945.16325-1-wqu@suse.com> <01eb72d8-73b2-049e-a6f4-37668742a2b8@knorrie.org> <79f01a1d-97b3-d7c1-91b7-01b7830b3f18@gmx.com> From: Qu Wenruo Openpgp: preference=signencrypt Autocrypt: addr=quwenruo.btrfs@gmx.com; prefer-encrypt=mutual; keydata= mQENBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAG0IlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT6JAVQEEwEIAD4CGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWCnQUJCWYC bgAKCRDCPZHzoSX+qAR8B/94VAsSNygx1C6dhb1u1Wp1Jr/lfO7QIOK/nf1PF0VpYjTQ2au8 ihf/RApTna31sVjBx3jzlmpy+lDoPdXwbI3Czx1PwDbdhAAjdRbvBmwM6cUWyqD+zjVm4RTG rFTPi3E7828YJ71Vpda2qghOYdnC45xCcjmHh8FwReLzsV2A6FtXsvd87bq6Iw2axOHVUax2 FGSbardMsHrya1dC2jF2R6n0uxaIc1bWGweYsq0LXvLcvjWH+zDgzYCUB0cfb+6Ib/ipSCYp 3i8BevMsTs62MOBmKz7til6Zdz0kkqDdSNOq8LgWGLOwUTqBh71+lqN2XBpTDu1eLZaNbxSI ilaVuQENBFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcga CbPEwhLj1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj /IrRUUka68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fN GSsRb+pKEKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0 q1eW4Jrv0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEv ABEBAAGJATwEGAEIACYWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWBrwIbDAUJA8JnAAAK CRDCPZHzoSX+qA3xB/4zS8zYh3Cbm3FllKz7+RKBw/ETBibFSKedQkbJzRlZhBc+XRwF61mi f0SXSdqKMbM1a98fEg8H5kV6GTo62BzvynVrf/FyT+zWbIVEuuZttMk2gWLIvbmWNyrQnzPl mnjK4AEvZGIt1pk+3+N/CMEfAZH5Aqnp0PaoytRZ/1vtMXNgMxlfNnb96giC3KMR6U0E+siA 4V7biIoyNoaN33t8m5FwEwd2FQDG9dAXWhG13zcm9gnk63BN3wyCQR+X5+jsfBaS4dvNzvQv h8Uq/YGjCoV1ofKYh3WKMY8avjq25nlrhzD/Nto9jHp8niwr21K//pXVA81R2qaXqGbql+zo Message-ID: <6a1bb4d1-cf3e-865d-c597-e50e65a4423a@gmx.com> Date: Mon, 25 Feb 2019 22:46:59 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="o2TVPmj8OCsXhAGltuoOgJ3GWbGBmKIjN" X-Provags-ID: V03:K1:r0NEdMG9XSmFueO/I0sxi2qyGulo5g56BWOn9zOf44GkwcNgAgV mkbrVccz+dfhD+HxCvEfJuqpOYNgDGFPYeegzIKW4V3BMcHVNhPiy6WujIZUcjTi2d/oxFP BiSK0V+1DdahH2hSjXDUhlkltYMhwUrP+F2QFj0N7V9BDl0sVWeEaD/Ntyzlc1jR1viCuY5 /aFmbYMz6NkJi2ssisjAw== X-UI-Out-Filterresults: notjunk:1;V03:K0:PCVMaGXxOyo=:sPiGYFH8fAVVdpfGE+llOu GMOZuFVytiTzp7xmgIRdlWTovY7KH12WD99n4C76KSLewLsCDP23j/ERKf+gFexZ8Gd5fbISF bWZaEhDVRmdWieoKhM1ViyON6zmdEiMLHgX4asHAg9xdbpCxao9tKrZIpiRJToHtQLctSC5sj PPb0PcChIIietLKCkNfHoHIfkdlqCCzzVkhBOzXbqUqEmZTLR9SpTkUode7ANaC3FW0CMnUQF pJO2MR9O2447fSfJzYdRVVjt9+qxspAL8c5Lv22eJx5PoW06FYTDi3qDognwkpDgfKSDJdw77 aQ1/i2TN/inO+Mc6ta4/PmM5+IMa8T72ONbTrtUjfqbbw/kKawpnwU6FuuYlYw6XgFFWggy6M Zi6EP9pitudZklgqDB6VHFV9pukuCsP6UJx6bALWy5AkEI49ws4TqAwEVwQCqE5P/99mqlwZF ZkkYtrScj0U58DQ26HOMIqbXtzSS4IvvI07WExz3eFImz23GXNrtVD8S6Y+Vk8J5j/FiMpenI a+DmWc4y3wQZqqNcTxfLONeKTZOv3QMIdiWF9IiGACin2E6anBwxT8UxOzC00Xw1smpewkRXQ xxwcsrYHipgkV05JCqONZ27wYwQKTYlUCoefd65ZsW7f5xrgeNI5Bn47oVQtegSMW9brIfFdX 3AbpJMQBzjCfSJbHl0AWSiO4VlupNCsotrlzojdqNQzAsqpuExHd0rNqK9Dl4TQbWHSWc3kFr JsbznhCLT6QVSZERtB+0hv2H7VbBTbsU6vKkBwpJd7uw04c1iCfSDion4zgByYy9bxB184ql2 Nx0CvMtCJlISlPtrlk/zQvarQB8wh+tdvrh2OVrvF/EqGgdGkV98H4G4FlOiN0slYUQ4saQHk T2ahgIdZ5qc4yc3D4yY2Znq+yhQfE5O98coNPpJD95Zri/kvrHF+9rWqbzzqhm Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --o2TVPmj8OCsXhAGltuoOgJ3GWbGBmKIjN Content-Type: multipart/mixed; boundary="9AZDDf6EaXtupWLoyju09hDMstJRqhloO"; protected-headers="v1" From: Qu Wenruo To: Hans van Kranenburg , Qu Wenruo , linux-btrfs@vger.kernel.org Message-ID: <6a1bb4d1-cf3e-865d-c597-e50e65a4423a@gmx.com> Subject: Re: [PATCH 0/2] Use new incompat feature BG_TREE to hugely reduce mount time References: <20190102052945.16325-1-wqu@suse.com> <01eb72d8-73b2-049e-a6f4-37668742a2b8@knorrie.org> <79f01a1d-97b3-d7c1-91b7-01b7830b3f18@gmx.com> In-Reply-To: --9AZDDf6EaXtupWLoyju09hDMstJRqhloO Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2019/2/25 =E4=B8=8B=E5=8D=889:16, Hans van Kranenburg wrote: > On 2/25/19 2:10 PM, Qu Wenruo wrote: >> >> >> On 2019/2/25 =E4=B8=8B=E5=8D=889:02, Hans van Kranenburg wrote: >>> Hi Qu, >>> >>> On 1/2/19 6:29 AM, Qu Wenruo wrote: >>>> This patchset can be fetched from: >>>> https://github.com/adam900710/linux/tree/bg_tree >>>> Which is based on v4.20-rc1 tag. >>>> >>>> This patchset will hugely reduce mount time of large fs by putting a= ll >>>> block group items into its own tree. >>> >>> I'm going to test this. >>> >>> Is there some specific command you'd like me to use to produce result= s >>> for benchmarks? >> >> Nope. If I provides some commands, those must be super beneficial for >> BG_TREE. >=20 > Ah, I meant, to produce output for the mount timings, like your 'ftrace= > function graph'. I don't have anything better than ftrace function graph so far. I assume you may need extra scripts to parse such output to create some beautiful graph. Thanks, Qu >=20 >> So just use whatever you like, near real world use case would be more >> appreciated. >=20 > Hans >=20 --9AZDDf6EaXtupWLoyju09hDMstJRqhloO-- --o2TVPmj8OCsXhAGltuoOgJ3GWbGBmKIjN Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAlxz/+MACgkQwj2R86El /qj28gf/bKr77Tm3knf6jcS81eQhfbe6ezgWbJMziJ2gTe0iYRNCWF2LjWQkB75p we9zOLWrNhO4nZJjJSbl5EDn+wlcsbKQWJlePe7ENbgAH9ZPV+bgrk94iTgR626X 9rWBwcYpkBfTOYfZGQy1RsEc7EsVi/U+T/NGxybsorQVTJ02P7cQNRNQYld8rYtY /ZunhiVjsOxs8CpijGT9pZA8HHxE+1YBk0K7xK0jcPKDseMQe8KpuLz6en5zTNmi Wc9ne2opR/SMHL4qG0ylOYe5BNMxxfMqrK3WMhYIhV04G3wadoHkhjSYEt6iBVMR VQTL/cEY1hqb+Bg6f3yNLTQtUlk1eQ== =xWT0 -----END PGP SIGNATURE----- --o2TVPmj8OCsXhAGltuoOgJ3GWbGBmKIjN--