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=-5.5 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 65BCEC433DB for ; Wed, 10 Feb 2021 15:12:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 331EA64E74 for ; Wed, 10 Feb 2021 15:12:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230028AbhBJPMC (ORCPT ); Wed, 10 Feb 2021 10:12:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50586 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231193AbhBJPMB (ORCPT ); Wed, 10 Feb 2021 10:12:01 -0500 Received: from mail-io1-xd2c.google.com (mail-io1-xd2c.google.com [IPv6:2607:f8b0:4864:20::d2c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87FCFC061756 for ; Wed, 10 Feb 2021 07:11:20 -0800 (PST) Received: by mail-io1-xd2c.google.com with SMTP id m17so2205520ioy.4 for ; Wed, 10 Feb 2021 07:11:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=tS5pwHzwXhieHszIWnMmjReWJIdbc2e31FQOtEQl4cg=; b=pJVodo9Rtion0T6XJgMylaX2zcsRoFqygAtB4s3ACHGJBjJHnN0GfB46pLNSddQH9F rNTsmkjiuclaX2RyaazmlfrcaCuGtArMcbeIlV8R1ELa8DhgKJ1LNkGrgdl+vLxfi57F eXB/o/mLCnGAmesPo3ohf/eCv0U/hsaPT455oWWESKhEaoeklm88XPU0Fkhq/28uUoBz qBVByD0YGEBjCk7ozBla1UheB2DbGs15cuAgpHPHJoNgKS78LKQxkpYb3hTYJfNy0KXH n3f1IPEMZDXBFdrHfJUTIdAVyjJAaZDZyo4gb7wKDV49Kf2eUGxTSywGHRchCa5HImwk juKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=tS5pwHzwXhieHszIWnMmjReWJIdbc2e31FQOtEQl4cg=; b=DJw7p6vrZPmaG56tnQ8iDNA1gXc1Fccm/GzCecHihfzKCcIlYxpi0pBgeaFx5Ax9Yu 9GvG51O/0DEVcL+GHSqV1vl66swjaPtMAtUGrcRww7W3Ftxfxe8NSrVFEAiVNR8KopOK dvyM0E5XqlJY9f+FTtceOMPQndjIMgt6WQILiz8jZ8AGh6q3Q2VWdDyZsN1I7ptxLN0B blhPVbaQMFcXjSREQpXD3gbTSE/TSQPoo33Zm66g9uvbxo2hwl60GiXQd8vcpxpoBTsL VJqYDEWr45koA83qsTSTXOlXr2bjssKSSDgFHVrwQYsbJfKXVVRbKpdUb0Z6aVTAq9GN HlOQ== X-Gm-Message-State: AOAM53298O2SH5nuTjKew2r5KOBSBt219y62gej1z73uMc1LOMHgFxAX FYeE/YoNv9Jc+5vc+ojAtKjDxA== X-Google-Smtp-Source: ABdhPJyEombVB+Gwzrdb4DYEQ+PXgxb1sdRnlhIIujQN+T/M1QLxqTYHX2yXc7y1kO9QlVSXbZwOcg== X-Received: by 2002:a05:6638:3bc:: with SMTP id z28mr3721115jap.118.1612969879655; Wed, 10 Feb 2021 07:11:19 -0800 (PST) Received: from [192.168.1.30] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id z7sm1108033iod.8.2021.02.10.07.11.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 10 Feb 2021 07:11:19 -0800 (PST) Subject: Re: [PATCH 00/20] bcache patches for Linux v5.12 To: Coly Li Cc: linux-bcache@vger.kernel.org, linux-block@vger.kernel.org, Jianpeng Ma , Qiaowei Ren , Kai Krakow References: <20210210050742.31237-1-colyli@suse.de> From: Jens Axboe Message-ID: <50173dee-31dd-9951-bc7f-b5247a46ef5e@kernel.dk> Date: Wed, 10 Feb 2021 08:11:18 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210210050742.31237-1-colyli@suse.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-bcache@vger.kernel.org On 2/9/21 10:07 PM, Coly Li wrote: > Hi Jens, > > This is the first wave bcache patches for Linux v5.12. > > It is nice to see in this round we have 3 new patch contributors: > Jianpeng Ma, Qiaowei Ren and Kai Krakow. > > In this series, the EXPERIMENTAL patches from Jianpeng Ma, Qiaowei Ren > and me are initial effort to store bcache meta-data on NVDIMM namespace. > The NVDIMM space is managed and mapped via DAX interface, and accessed > by linear address. In this submission we store bcache journal on NVDIMM, > in future bcache btree nodes and other meta data will be added in too, > before we remove the EXPERIMENTAL statues. > > Dongdong Tao contributes a performance optimization when > bcache cache buckets are highly fregmented, Dongdong's patch makes the > dirty data writeback faster and from his benchmark reprots such changes > have recognized improvement for randome write I/O thoughput and latency > for highly fregmented buckets, and no regression for regular I/O > observed. > > Kai Krakow contributes 4 patches to offload system_wq usage to separated > btree_io_wq and bch_flush_wq. In his environment the daily backup job > throughput increases from 60.2MB/s to 419MB/s and accomplished time > reduced from 14h29m to 2h13m. > > Joe Perches also contributes a fine code stype fix which I pick for this > submission. > > Please take them for Linux v5.12 merge window. Applied 1-6 for now, that weird situation with the user visible header needs to get resolved before it can go any further. -- Jens Axboe