Huawei ranks first in Linux kernel 5.10 in terms of code contribution

InfoQ 2021-01-05 17:10:20
huawei ranks linux kernel terms


{"type":"doc","content":[{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"The presence of Huawei at the top of the \"by changesets\" column may be a bit of a surprise, though something similar happened in 5.8. 94 developers working for Huawei who contributed at least one patch to 5.10. Huawei has built up a significant kernel-development operation. Beyond that, these results are mostly as one would expect. "}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"—— Free software media LWN.net"}]}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"Linux Kernel 5.10 Code contribution , Huawei ranks first "}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https:\/\/static001.infoq.cn\/resource\/image\/a2\/a8\/a2dae1355f0ed7373aee0ff418d207a8.jpeg","alt":null,"title":"","style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" stay Linux Kernel 5.10( Hereinafter referred to as" “5.10 edition ”) In the version , The number of patches submitted by Huawei is 1434 individual , Proportion 8.9%, The contribution of kernel code ranked first , Code changes 41049 That's ok , Proportion 5.3%, Code modification line ranked second , Automatic kernel defect detection robot HULK Robot In the kernel Bug Found second on the list , Found out 15% The kernel of Bug."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https:\/\/static001.infoq.cn\/resource\/image\/18\/bf\/18512a0c7f4331a482f8fa6b22fa60bf.jpeg","alt":null,"title":"","style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https:\/\/static001.infoq.cn\/resource\/image\/c4\/71\/c4ff3b49658bcff5978e6f1455f99a71.jpeg","alt":null,"title":"","style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" stay 5.10 edition , Huawei's contribution mainly lies in ARM64 framework 、ACPI、 memory management 、 file system 、Media、 Kernel documentation and Hisilicon chip support, etc ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","attrs":{"listStyle":null},"content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" stay ARM64 In terms of Architecture , Enhanced ARM64 64K Below the page RAID5 Support , Write performance improvement 6 times , Reduce stripe_head 75% Memory usage of . Support per-NUMA   Of CMA, Lifting performance ;"}]}]},{"type":"listitem","attrs":{"listStyle":null},"content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" stay ACPI Subsystem side , Support heterogeneous device rendering as NUMA node , as well as ACPI DFX Refactoring preparation ; Memory management optimized slub free Of slowpath, Lifting performance ."}]}]},{"type":"listitem","attrs":{"listStyle":null},"content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" On the file system ,F2FS Support based on Age-Threshold Garbage collection \/ Support extended pure memory log header management and swap Partition loading speed optimization , Performance improvement 40 times .Mauro As documentation and Media Subsystem Maintainer, Did a lot of Media And document improvement , Generate directly for kernel documents PDF A lot of preparation ."}]}]},{"type":"listitem","attrs":{"listStyle":null},"content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" In terms of Hisilicon chip support , New Kunpeng processor and Hikey970 Multiple driver support and driver enhancement ."}]}]},{"type":"listitem","attrs":{"listStyle":null},"content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" In addition to features , Huawei engineers have contributed a lot of quality reinforcement to the whole kernel bugfix, And code refactoring , Enhanced the quality of the entire kernel ."}]}]}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":" New faces on the developer contribution list "}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" From the German Research Institute of Huawei Mauro stay Media, Kernel documentation and hikey The driver subsystem has made a lot of contributions . except Mauro Besides , also 94 A developer from Huawei 5.10 Version to contribute ."}]},{"type":"image","attrs":{"src":"https:\/\/static001.infoq.cn\/resource\/image\/bf\/8c\/bfb9f56952058ab6e0d9dc83b3a8da8c.jpeg","alt":null,"title":"","style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":"center","origin":null},"content":[{"type":"text","text":" At the top of the list of contributing developers 20 The list of , There are three Huawei Engineers "}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" On the list of contributing developers , Except for some big guys that I often see , And new faces . For example, from Huawei OS Miao Qinglang of the nuclear lab ."}]},{"type":"image","attrs":{"src":"https:\/\/static001.infoq.cn\/resource\/image\/28\/c6\/2805abd8f787d0646a037f9a7e5d8ec6.jpeg","alt":null,"title":"","style":[{"key":"width","value":"75%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":"center","origin":null},"content":[{"type":"text","text":" Huawei OS Miao Qinglang, engineer of nuclear laboratory "}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"“ For me , It's part of my job to invest in open source , And that's what I'm interested in . I graduated from Zhejiang University in less than two years , New entrants to kernel development , I'm honored to be on 5.10 Version of the patch contribution before 20 List of ”"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" Everyone is concerned that their code is integrated into Linux Kernel be still fresh fresh in one 's memories ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"“ I always remember the excitement of receiving the first community response , Every morning before I come to the company to open my email , And more of the secret joy and identity of each patch received . And the communication with the community also helps me continuously improve my development ability and understanding of the kernel .”"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","marks":[{"type":"strong"}],"text":"Linux Kernel Importance "}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" What we say Linux The full name is GNU\/Linux, This is defined by the free software foundation .Linux There was only one Linux Kernel. Technically speaking ,Linux It's just a coincidence POSIX The standard kernel . It provides a set of application program interfaces (API), User program can interact with kernel and hardware through interface ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" For developers ,Linux Kernel Contains the lowest level of operating system logic , meanwhile Linux Kernel As a channel for hardware and software , Some hardware functions have to be in Kernel We need to support , The hardware works properly , To give full play to the ultimate performance of hardware , Still in Kernel We need to do some tuning on the level of software . So master Linux Kernel Code for ,, Its importance can be seen in ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" But in LWN.net In the article , There is a passage like this :"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"A total of 1,971 developers contributed to 5.10 — again, just short of the record set by 5.8. Of those developers, 252 (just under 13%) made their first contribution in 5.10; that is the lowest number seen since 5.6"}]}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" Huawei from 2012 In the past ten years, we have made great contributions to Linux Kernel Since the community contributed the first patch ,8 Over the years, there has been an increasing demand for Linux Kernel Community input , from 1 A patch 1 A developer is involved in 1434 A patch 95 A developer is involved in , from 0 individual Maintainer To 26 individual Maintainer. In terms of code contribution , In addition to routine maintenance of Huawei code ,Bug Beyond repair , Will also be in Linux New features discovered in the field of server operating systems contribute to Linux Kernel Community ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" Huawei has been following “ dedication ”“ to open up ” The spirit of open source . Through real action , Solve some Linux Kernel The current problems in the community , Welcome more developers to Linux Kernel In the community , Let this bring together the wisdom of global developers Linux Kernel More luxuriant ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" Huawei except in Linux Kernel I'm constantly contributing to , It also dominates open source openEuler There's a new exploration going on in the community ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" Just released in openEuler 20.03 LTS SP1 In the version ,openEuler The community will openEuler 20.09 Features in the innovation edition are added to openEuler 20.03 LTS SP1 in , Welcome to download the experience ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong"}],"text":"Release Notes:"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"https:\/\/openeuler.org\/zh\/news\/20201228.html"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong"}],"text":" Download link :"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"https:\/\/repo.openeuler.org\/openEuler-20.03-LTS-SP1\/"}]}]}
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