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⇱ The Linux Kernel Enters 2020 At 27.8 Million Lines In Git But With Less Developers For 2019 - Phoronix


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The Linux Kernel Enters 2020 At 27.8 Million Lines In Git But With Less Developers For 2019

Written by Michael Larabel in Linux Kernel on 1 January 2020 at 09:14 AM EST. 5 Comments
As of this morning in the Linux kernel Git source tree, the kernel weighs in at 27.8 million lines!

The stats as we start 2020 put the Linux kernel source tree at 27,852,148 lines (including docs, Kconfig files, user-space utilities in-tree, etc), 887,925 commits, and around 21,074 different authors. The 27.8 million lines are divided among 66,492 files.

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During 2019, the Linux kernel saw 74,754 commits, which is actually the lowest point since 2013. The 74k commits is compares to 80k commits seen in both 2017 and 2018, 77k commits in 2016, and 75k commits in both 2014 and 2015.

Besides the commit count being lower, the author count for the year is also lower. 2019 saw around 4,189 different authors to the Linux kernel, which is lower than the 4,362 in 2018 and 4,402 in 2017.

While the commit count is lower for the year, on a line count it's about average with seeing 3,386,347 lines of new code added and 1,696,620 lines removed.

Besides Linus Torvalds, the most prolific contributors to the kernel were David S. Miller, Chris Wilson, YueHaibing, Christoph Hellwig, and Thomas Gleixner.

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Intel and Red Hat have remained the top companies contributing to the upstream Linux kernel.

Those wanting to see more Linux Git stats as of this morning can see this GitStats output.

Below is also a cloc output for the Linux code analysis as of this New Year's morning.
 66449 text files.
 66000 unique files. 
 11119 files ignored.

github.com/AlDanial/cloc v 1.82 T=67.33 s (822.2 files/s, 388799.5 lines/s)
---------------------------------------------------------------------------------------
Language files blank comment code
---------------------------------------------------------------------------------------
C 27961 2761653 2292505 14061980
C/C++ Header 19875 531782 956091 4300989
reStructuredText 2153 101820 53725 270579
Assembly 1320 46971 101470 230117
JSON 273 0 0 161955
Bourne Shell 577 13299 9690 52817
make 2531 9485 10644 41766
SVG 58 117 1364 36216
Perl 59 6021 4422 30642
Python 118 4987 4588 26256
YAML 325 5205 1449 25529
yacc 9 697 359 4810
PO File 5 791 918 3077
lex 8 326 300 2015
C++ 10 320 129 1933
Bourne Again Shell 51 356 297 1765
awk 10 140 116 1060
Glade 1 58 0 603
NAnt script 2 146 0 551
Cucumber 1 28 50 174
Windows Module Definition 2 15 0 109
m4 1 15 1 95
CSS 1 28 29 80
XSLT 5 13 26 61
vim script 1 3 12 27
Ruby 1 4 0 25
INI 1 1 0 6
sed 1 2 5 5
---------------------------------------------------------------------------------------
SUM: 55360 3484283 3438190 19255242
---------------------------------------------------------------------------------------

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.