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Message-ID: <20240722142243.26b9457f@kernel.org> Date: Mon, 22 Jul 2024 14:22:43 -0700 From: Jakub Kicinski <kuba@...nel.org> To: netdev@...r.kernel.org, netdev-driver-reviewers@...r.kernel.org Subject: [ANN] netdev development stats for 6.11 Public announcements -------------------- This section is unrelated to the stats ;) I'm guessing that stats emails may have above-average readership so, shortly: 1. LPC and netconf submissions are open. The new deadline is Aug 4th. netconf is more discussion oriented; submitting the same topic to both is perfectly fine. We have some speaker passes for LPC so don't worry too much that the registration is closed (but maybe make a note in the submission that you need a pass). https://lore.kernel.org/all/20240410091255.2fd6a373@kernel.org/ https://lore.kernel.org/all/20240605143056.4a850c40@kernel.org/ 2. The deadline for setting up public CI for drivers is approaching. Any new NIC driver merged into net-next will now (already!) require a CI to be "Supported" in MAINTAINERS, by the next merge window (~October) we will downgrade existing drivers which don't have a CI. https://lore.kernel.org/all/20240425114200.3effe773@kernel.org/ Onto the actual stats.. Intro ----- We have posted our pull requests with networking changes for the 6.11 kernel release last night. 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/956765/ but more focused on mailing list participation. Previous stats (for 6.10): https://lore.kernel.org/all/20240515122552.34af8692@kernel.org/ General stats ------------- The release cycle was the same length as the previous one. The number of messages sent to the list a day dropped from 266 to 244. The number of commits applied by netdev maintainers dropped from 20 to 17. These are within our usual fluctuation bounds and likely seasonal. The percentage of reviewed patches (by git tags) went back up to 68%, but when we exclude people working for the same company the number remained stable around 56%. The fraction of patches merged without any review across all versions dropped from 40% to 30%. Testing ------- The number of ignored test cases in netdev CI decreased further from 20 to 14. The ranking of people who contributed most to selftests: 1 [ 16] Jakub Kicinski 2 [ 15] Kuniyuki Iwashima 3 [ 14] Petr Machata 4 [ 12] Matthieu Baerts 5 [ 10] Aaron Conole 6 [ 6] Adrian Moreno 7 [ 4] Geliang Tang 8 [ 4] Hangbin Liu 9 [ 2] Amit Cohen 10 [ 2] Ido Schimmel A lot of familiar names. The two major efforts to call out were Kuniyuki's rework of AF_UNIX tests, and Aaron's work to make Open vSwitch tests run as part of our CI. Fraction of applied patches which touch selftests dropped from 12.5% to 10%. We may need to start pushing explicitly for more tests during review.. Developer rankings ------------------ Top reviewers (cs): Top reviewers (msg): 1 ( +1) [24] Jakub Kicinski 1 ( ) [54] Jakub Kicinski 2 ( -1) [24] Simon Horman 2 ( ) [54] Simon Horman 3 ( +2) [14] Andrew Lunn 3 ( ) [39] Andrew Lunn 4 ( -1) [10] Paolo Abeni 4 ( ) [17] Eric Dumazet 5 ( -1) [ 8] Eric Dumazet 5 ( +1) [14] Paolo Abeni 6 ( +8) [ 5] Przemek Kitszel 6 (+10) [12] Vladimir Oltean 7 ( +4) [ 4] Krzysztof Kozlowski 7 ( -2) [12] Willem de Bruijn 8 ( +4) [ 3] Russell King 8 ( +3) [10] Krzysztof Kozlowski 9 ( +9) [ 3] Vladimir Oltean 9 (+18) [ 9] Michael S. Tsirkin 10 ( ) [ 3] Jacob Keller 10 (+12) [ 9] Przemek Kitszel 11 ( -5) [ 3] Jiri Pirko 11 ( +1) [ 9] Russell King 12 ( -4) [ 3] Willem de Bruijn 12 ( +3) [ 7] Jacob Keller 13 ( -6) [ 3] David Ahern 13 ( -5) [ 7] Jason Wang 14 (+13) [ 3] Michael S. Tsirkin 14 ( +7) [ 6] Rob Herring 15 ( +7) [ 3] Rob Herring 15 ( -8) [ 6] Jiri Pirko Przemek continues to climb reviewing both Intel and non-Intel driver patches. Vladimir and Russell return to top 10 after short period of lower activity. Michael and Jason primarily review virtio patches (of which there is an increasing number). Thank you all very much for your invaluable work! Top authors (cs): Top authors (msg): 1 ( +1) [5] Jakub Kicinski 1 ( +4) [15] Kory Maincent (Dent Project) 2 ( -1) [3] Eric Dumazet 2 ( -1) [14] Jakub Kicinski 3 ( +2) [2] Kuniyuki Iwashima 3 (***) [13] Sebastian Andrzej Siewior 4 ( +2) [1] Breno Leitao 4 ( +9) [13] Kuniyuki Iwashima 5 ( +6) [1] Jason Xing 5 (+23) [12] Yunsheng Lin 6 (***) [1] Bartosz Golaszewski 6 (+18) [11] Mina Almasry 7 (+32) [1] Oleksij Rempel 7 ( +3) [11] Xuan Zhuo Kory worked on PoE/PoDL interfaces as well as timestamp selection API (which sadly didn't make 6.11). Breno refactored netdev allocation and stats in SW drivers. Jason worked on tracing and various TCP-adjacent bits. Bartosz contributed power sequencing subsystem and various platform enablement bits. Yunsheng Lin continues attempts at refactoring page frag API. Top scores (positive): Top scores (negative): 1 ( ) [377] Simon Horman 1 ( +2) [54] Kory Maincent (Dent Project) 2 ( ) [363] Jakub Kicinski 2 (***) [47] Sebastian Andrzej Siewior 3 ( ) [257] Andrew Lunn 3 (+17) [46] Yunsheng Lin 4 ( ) [129] Paolo Abeni 4 (+37) [42] Mina Almasry 5 ( +2) [102] Eric Dumazet 5 (***) [41] Bartosz Golaszewski 6 ( +6) [ 75] Przemek Kitszel 6 (***) [40] Adrian Moreno 7 (+40) [ 70] Krzysztof Kozlowski 7 (+32) [40] Christophe Roullier 8 ( -2) [ 68] Willem de Bruijn 8 ( -7) [38] Edward Liaw 9 ( +6) [ 54] Vladimir Oltean 9 (+49) [38] Maxime Chevallier 10 (+12) [ 53] Michael S. Tsirkin 10 (+39) [38] Justin Lai The list of top "scores" (i.e. folks contributing more reviews than code) speaks for itself. Company rankings ---------------- Top reviewers (cs): Top reviewers (msg): 1 ( ) [37] RedHat 1 ( ) [97] RedHat 2 ( ) [25] Meta 2 ( ) [66] Meta 3 ( +1) [19] Intel 3 ( +1) [43] Intel 4 ( +2) [14] Andrew Lunn 4 ( +1) [39] Andrew Lunn 5 ( -2) [12] Google 5 ( -2) [36] Google 6 ( -1) [ 7] nVidia 6 ( ) [21] nVidia 7 ( ) [ 7] Linaro 7 ( ) [15] Linaro Top authors (cs): Top authors (msg): 1 ( +1) [10] RedHat 1 ( ) [69] Intel 2 ( -1) [10] Intel 2 ( +1) [43] RedHat 3 ( +1) [ 8] Meta 3 ( +1) [42] nVidia 4 ( -1) [ 6] Google 4 ( -2) [38] Google 5 ( ) [ 5] nVidia 5 ( ) [31] Meta 6 ( +4) [ 3] Linaro 6 ( ) [21] Alibaba 7 (+14) [ 3] Qualcomm 7 ( +1) [18] Huawei Top scores (positive): Top scores (negative): 1 ( ) [473] RedHat 1 ( ) [64] Alibaba 2 ( ) [335] Meta 2 ( ) [59] Huawei 3 ( ) [257] Andrew Lunn 3 ( +3) [56] Bootlin 4 ( ) [ 78] Google 4 ( ) [54] Dent 5 ( +2) [ 59] Linaro 5 (***) [49] Linutronix 6 ( +2) [ 54] ARM 6 (+26) [43] MediaTek 7 ( +2) [ 52] Linux Foundation 7 (***) [43] Qualcomm Only minor movements in company rankings. Alibaba and Huawei continue to occupy the top "net-taker" spots in terms of reviews, followed by number of embedded contractors, MediaTek and Qualcomm. Looking at scores of those companies (~50) vs Andrew's individual score (250) -- it appears that 1/5th of "an Andrew" would be enough for those companies to disappear from the list of shame. Apparently 1/5th of a single engineer's time is too much to ask. -- Code: https://github.com/kuba-moo/ml-stat Raw output: https://netdev.bots.linux.dev/static/nipa/stats-6.11/stdout
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