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From: Coly Li <colyli@suse.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-bcache@vger.kernel.org, linux-block@vger.kernel.org,
	Jianpeng Ma <jianpeng.ma@intel.com>,
	Qiaowei Ren <qiaowei.ren@intel.com>, Kai Krakow <kai@kaishome.de>
Subject: Re: [PATCH 00/20] bcache patches for Linux v5.12
Date: Sat, 13 Feb 2021 00:09:38 +0800
Message-ID: <4f6a39e3-f80b-cdc2-aa50-5aa44a6fb8eb@suse.de> (raw)
In-Reply-To: <50173dee-31dd-9951-bc7f-b5247a46ef5e@kernel.dk>

On 2/10/21 11:11 PM, Jens Axboe wrote:
> 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.
> 
Thanks for taking care of the patches and offering your opinion. I will
ask you and other developers' suggestion for a proper form for the data
structure definition.

Coly Li

      reply index

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-10  5:07 Coly Li
2021-02-10  5:07 ` [PATCH 01/20] bcache: consider the fragmentation when update the writeback rate Coly Li
2021-02-10  5:07 ` [PATCH 02/20] bcache: Fix register_device_aync typo Coly Li
2021-02-10  5:07 ` [PATCH 03/20] Revert "bcache: Kill btree_io_wq" Coly Li
2021-02-10  5:07 ` [PATCH 04/20] bcache: Give btree_io_wq correct semantics again Coly Li
2021-02-10  5:07 ` [PATCH 05/20] bcache: Move journal work to new flush wq Coly Li
2021-02-10  5:07 ` [PATCH 06/20] bcache: Avoid comma separated statements Coly Li
2021-02-10  5:07 ` [PATCH 07/20] bcache: add initial data structures for nvm pages Coly Li
2021-02-10 15:09   ` Jens Axboe
2021-02-11  3:58     ` Coly Li
2021-02-10  5:07 ` [PATCH 08/20] bcache: initialize the nvm pages allocator Coly Li
2021-02-10  5:07 ` [PATCH 09/20] bcache: initialization of the buddy Coly Li
2021-02-10  5:07 ` [PATCH 10/20] bcache: bch_nvm_alloc_pages() " Coly Li
2021-02-10  5:07 ` [PATCH 11/20] bcache: bch_nvm_free_pages() " Coly Li
2021-02-10  5:07 ` [PATCH 12/20] bcache: get allocated pages from specific owner Coly Li
2021-02-10  5:07 ` [PATCH 13/20] bcache: persist owner info when alloc/free pages Coly Li
2021-02-10  5:07 ` [PATCH 14/20] bcache: use bucket index for SET_GC_MARK() in bch_btree_gc_finish() Coly Li
2021-02-10  5:07 ` [PATCH 15/20] bcache: add BCH_FEATURE_INCOMPAT_NVDIMM_META into incompat feature set Coly Li
2021-02-10  5:07 ` [PATCH 16/20] bcache: initialize bcache journal for NVDIMM meta device Coly Li
2021-02-10  5:07 ` [PATCH 17/20] bcache: support storing bcache journal into " Coly Li
2021-02-18 21:21   ` Nix
2021-02-10  5:07 ` [PATCH 18/20] bcache: read jset from NVDIMM pages for journal replay Coly Li
2021-02-10  5:07 ` [PATCH 19/20] bcache: add sysfs interface register_nvdimm_meta to register NVDIMM meta device Coly Li
2021-02-10  5:07 ` [PATCH 20/20] bcache: only initialize nvm-pages allocator when CONFIG_BCACHE_NVM_PAGES configured Coly Li
2021-02-10 15:11 ` [PATCH 00/20] bcache patches for Linux v5.12 Jens Axboe
2021-02-12 16:09   ` Coly Li [this message]

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