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Message-ID: <20250326140948.18a7da36@kernel.org> Date: Wed, 26 Mar 2025 14:09:48 -0700 From: Jakub Kicinski <kuba@...nel.org> To: netdev@...r.kernel.org, netdev-driver-reviewers@...r.kernel.org Subject: [ANN] netdev development stats for 6.15 Intro ----- As is tradition here are the development statistics based on mailing list traffic on netdev@...r. These stats are somewhat like LWN stats: https://lwn.net/Articles/1004998/ but more focused on mailing list participation. And by participation we mean reviewing code more than producing patches. Previous 3 reports: - for 6.11: https://lore.kernel.org/20240722142243.26b9457f@kernel.org - for 6.12: https://lore.kernel.org/20240922190125.24697d06@kernel.org - for 6.13: https://lore.kernel.org/20241119191608.514ea226@kernel.org - for 6.14: https://lore.kernel.org/20250121200710.19126f7d@kernel.org General stats ------------- The 6.14 cycle included the winter break so for general stats let's compare to 6.13. 6.15 merge window over all is +7.6% larger (total linux-next size) than 6.13. We merged 1443 commits, which is +9.4% compared to 6.13, and +1.7% if we discount the linux-next size growth. The number of "pure authors" on the list dropped from 392 to 309. The number of full participants (both submitting and commenting on other people's patches) remained around 170. Review coverage increased slightly (+0.4%). The number of revisions of each patch set decreased slightly. Testing ------- Testing infra is stable, we have a regression in TDC due to iproute2 changes but that's hopefully to be addressed soon. The major time investment in terms of testing this release was the addition of the "HW branch stream". A stream of branches to be tested on HW setups, consisting only of patches which successfully passed SW testing, and at a lower rate (one every 8 hours). This has been in the plans for over a year, but the final push came from Collabora which prepared a runner for NVMe-over-TCP testing. HW testing is a bit more tricky than SW testing, as we can't expect all tests to pass on all setups. As such we track test cases, and only consider those which have passed in the past at least 15 times in a row. We are now running all driver tests against virtio. https://netdev.bots.linux.dev/contest.html?pw-n=0&branch=net-next-hw-2025-03-26--16-00&pw-n=0&ld-cases=1 None of this is impressive but it took a solid week of plumbing :) Contributions to selftests: 1 [ 31] Jakub Kicinski 2 [ 7] Dmitry Safonov 3 [ 4] Breno Leitao 4 [ 4] Cong Wang 5 [ 4] Willem de Bruijn 6 [ 4] Ido Schimmel 7 [ 4] Petr Machata 8 [ 3] Gal Pressman 9 [ 3] Hangbin Liu 10 [ 3] Kevin Krakauer Developer rankings ------------------ Top reviewers (cs): Top reviewers (msg): 1 ( ) [26] Jakub Kicinski 1 ( ) [59] Jakub Kicinski 2 ( +1) [25] Simon Horman 2 ( +1) [55] Simon Horman 3 ( -1) [17] Andrew Lunn 3 ( -1) [45] Andrew Lunn 4 ( ) [12] Paolo Abeni 4 ( +6) [20] Willem de Bruijn 5 ( ) [ 7] Eric Dumazet 5 ( +2) [19] Russell King 6 ( +2) [ 6] Russell King 6 ( -1) [18] Paolo Abeni 7 ( +8) [ 5] Kuniyuki Iwashima 7 ( -3) [18] Eric Dumazet 8 (+11) [ 4] Stanislav Fomichev 8 (+10) [14] Kuniyuki Iwashima 9 ( -3) [ 4] Michal Swiatkowski 9 ( -3) [12] Vladimir Oltean 10 ( ) [ 4] Willem de Bruijn 10 (+12) [11] Stanislav Fomichev 11 ( +2) [ 4] Joe Damato 11 ( +4) [11] Joe Damato 12 (+13) [ 3] Rob Herring 12 (+14) [ 8] Rob Herring 13 ( +3) [ 3] Jacob Keller 13 (+27) [ 8] Leon Romanovsky 14 ( +3) [ 3] Ido Schimmel 14 ( +7) [ 8] Jason Wang 15 ( -6) [ 3] Krzysztof Kozlowski 15 (***) [ 7] Nikolay Aleksandrov The ranking comparison to 6.13 may also be clearer as much of the movement here is folks returning to their usual positions. Stanislav and Rob register the highest jump. Stanislav worked on netdev locking and ZC TCP, but also helped revive NIPA a few times. Rob is the device tree maintainer. Joe climbed in 6.13 and moves further up in 6.14. Thank you all very much for your invaluable work! Top authors (cs): Top authors (msg): 1 ( +1) [6] Jakub Kicinski 1 ( +4) [26] Jakub Kicinski 2 ( -1) [5] Eric Dumazet 2 (***) [21] Stanislav Fomichev 3 ( ) [4] Russell King 3 ( -2) [20] Russell King 4 ( +2) [3] Heiner Kallweit 4 ( +8) [20] Eric Dumazet 5 ( ) [3] Tariq Toukan 5 (***) [18] Maxime Chevallier 6 ( +1) [2] Kuniyuki Iwashima 6 (***) [18] Lorenzo Bianconi 7 (+36) [2] Breno Leitao 7 ( -5) [17] Antonio Quartulli 8 ( +5) [2] Paolo Abeni 8 ( -4) [15] Tariq Toukan 9 ( +2) [2] Matthieu Baerts 9 ( -6) [15] Kuniyuki Iwashima 10 ( -1) [2] Dan Carpenter 10 (+27) [15] Jason Xing Top scores (positive): Top scores (negative): 1 ( +2) [389] Simon Horman 1 ( ) [66] Antonio Quartulli 2 ( -1) [341] Jakub Kicinski 2 (***) [64] Lorenzo Bianconi 3 ( -1) [295] Andrew Lunn 3 (***) [59] Jedrzej Jagielski 4 ( ) [146] Paolo Abeni 4 (***) [43] Eric Woudstra 5 ( +4) [ 86] Willem de Bruijn 5 (***) [41] Faizal Rahim 6 (+12) [ 57] Rob Herring 6 (***) [41] Maxime Chevallier 7 ( +1) [ 52] Vladimir Oltean 7 ( +5) [40] Tian Xin 8 ( -3) [ 45] Eric Dumazet 8 (***) [39] Peter Seiderer 9 ( +1) [ 44] Krzysztof Kozlowski 9 ( -1) [37] Tony Nguyen 10 ( -4) [ 43] Michal Swiatkowski 10 (***) [36] Danielle Ratson Company rankings ---------------- Top reviewers (cs): Top reviewers (msg): 1 ( +1) [38] RedHat 1 ( +1) [98] RedHat 2 ( -1) [31] Meta 2 ( -1) [82] Meta 3 ( ) [21] Intel 3 ( ) [50] Intel 4 ( ) [17] Andrew Lunn 4 ( +1) [46] Google 5 ( ) [13] Google 5 ( -1) [45] Andrew Lunn 6 ( +2) [ 9] nVidia 6 ( +2) [31] nVidia 7 ( ) [ 8] Oracle 7 ( ) [23] Oracle Top authors (cs): Top authors (msg): 1 ( ) [11] RedHat 1 ( ) [89] Intel 2 ( +2) [11] Meta 2 ( +1) [63] Meta 3 ( -1) [10] Google 3 ( -1) [58] RedHat 4 ( -1) [ 9] Intel 4 ( +1) [56] nVidia 5 ( ) [ 8] nVidia 5 ( +3) [41] Google 6 ( ) [ 5] Oracle 6 (+18) [28] Bootlin 7 ( ) [ 3] Linaro 7 ( -1) [25] Oracle Top scores (positive): Top scores (negative): 1 ( +2) [414] RedHat 1 (+41) [75] Bootlin 2 ( -1) [306] Meta 2 ( ) [66] OpenVPN 3 ( -1) [295] Andrew Lunn 3 (+31) [43] Parachute 4 ( +1) [108] Google 4 ( +8) [40] Yunsilicon 5 ( +1) [ 76] Linaro 5 (***) [39] Peter Seiderer 6 ( +6) [ 60] ARM 6 ( ) [39] nVidia 7 (***) [ 39] Oracle 7 ( -4) [37] Pengutronix -- Code: https://github.com/kuba-moo/ml-stat Raw output: https://netdev.bots.linux.dev/static/nipa/stats-6.15/stdout
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