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Date: Tue, 29 Aug 2023 15:05:39 -0700 From: Jakub Kicinski <kuba@...nel.org> To: netdev@...r.kernel.org Cc: netdev-driver-reviewers@...r.kernel.org Subject: [ANN] netdev development stats for 6.6 Hi! General stats ------------- The cycle started on June 27th and ended on August 28th, it was exactly the same length as the previous release cycle. We have seen total of 16834 messages on the list (272 / day) which is 10% higher than last time (but very similar to the 6.4 cycle). The number of commits directly applied by netdev maintainers increased by 20% to 22 commits a day breaking the 3 release long streak of 18 / day. The increases seem a little surprising to me, TBH, after all this release covered a lot of the vacation season. The number of participants in the ML discussions continues to oscillate around 770 individuals. The patch review rate (Review/Ack tags) has recovered back to the 6.4 level and is respectively at 66% and 58%. Hopefully the 6.5 dip was temporary. Rankings -------- Top reviewers (thr): Top reviewers (msg): 1 ( ) [44] Simon Horman 1 ( ) [59] Simon Horman 2 ( ) [33] Jakub Kicinski 2 ( ) [56] Jakub Kicinski 3 ( ) [13] Andrew Lunn 3 ( ) [30] Andrew Lunn 4 ( +9) [11] Leon Romanovsky 4 ( +9) [21] Leon Romanovsky 5 ( -1) [ 8] Paolo Abeni 5 ( ) [13] Russell King 6 ( -1) [ 6] Eric Dumazet 6 ( +5) [11] David Ahern 7 ( +4) [ 6] David Ahern 7 (+33) [10] Jesper Dangaard Brouer 8 ( +6) [ 6] Ido Schimmel 8 ( +1) [10] Paolo Abeni 9 ( -3) [ 6] Russell King 9 ( -5) [ 9] Eric Dumazet 10 ( +5) [ 5] Willem de Bruijn 10 ( +9) [ 9] Ido Schimmel 11 (+41) [ 5] Jesper Dangaard Brouer 11 ( +5) [ 8] Willem de Bruijn 12 (+24) [ 4] Alexander Lobakin 12 ( -2) [ 8] Michael S. Tsirkin The top reviewer ranking is stable enough, with Simon topping the list (as well as the kernel-wide reviewer list, congrats!). Ido returns to the top 12 by actively reviewing core routing as well as some "protocol driver" code. Jesper jumps into top 12 registering the highest move from his work reviewing the page pool code. Leon returns to #4 after a less active 6.5 cycle. Top authors (thr): Top authors (msg): 1 (***) [8] Yue Haibing 1 ( +2) [24] Tony Nguyen 2 ( -1) [7] Jakub Kicinski 2 ( ) [19] Saeed Mahameed 3 ( -1) [5] Eric Dumazet 3 ( +2) [17] Jakub Kicinski 4 ( -1) [5] Tony Nguyen 4 (+21) [17] Eric Dumazet 5 (***) [4] Jinjie Ruan 5 (***) [16] Qi Zheng 6 (***) [3] Suman Ghosh 6 (+25) [14] Jiri Pirko 7 ( -1) [3] Kuniyuki Iwashima 7 (***) [13] Hannes Reinecke 8 ( +2) [3] Daniel Golle 8 (+18) [11] Vladimir Oltean 9 ( +6) [3] Lin Ma 9 (+15) [11] Dmitry Safonov 10 (***) [3] Hangbin Liu 10 (+31) [10] Larysa Zaremba Yue Haibing tops the raking of most threads started with the work of removing unused declarations from the kernel. Jinjie Ruan authored patches removing of_match_ptr() annotations and "fixing" minor issues with error handling. Qi Zheng posted the huge "refcount+RCU method to implement lockless slab shrink" series a few times, not really related to netdev. Hannes Reinecke worked on TLS and TLS + NVMe integration. Company rankings ---------------- Top reviewers (thr): Top reviewers (msg): 1 ( ) [44] Corigine 1 ( +1) [66] Meta 2 ( ) [37] Meta 2 ( -1) [59] Corigine 3 ( ) [23] RedHat 3 ( ) [51] RedHat 4 ( +3) [23] nVidia 4 ( +2) [46] nVidia 5 ( -1) [17] Intel 5 ( -1) [32] Intel 6 ( ) [14] Google 6 ( -1) [30] Andrew Lunn 7 ( -2) [13] Andrew Lunn 7 ( ) [29] Google The company ranking is pretty stable, with only notable movement being nVidia's return to #4. Top authors (thr): Top authors (msg): 1 ( +5) [25] Huawei 1 ( ) [86] Intel 2 ( -1) [19] Intel 2 ( +1) [70] nVidia 3 ( -1) [17] RedHat 3 ( -1) [52] RedHat 4 ( ) [12] Meta 4 ( +6) [44] Huawei 5 ( -2) [11] nVidia 5 ( ) [38] Meta 6 ( -1) [10] Google 6 ( +7) [32] Google 7 ( +5) [ 9] Marvell 7 ( +1) [25] AMD Development vs reviewing scores ------------------------------- Top scores (positive): Bottom scores (negative): 1 ( ) [542] Corigine 1 (+31) [136] Huawei 2 ( ) [346] Meta 2 ( ) [106] Intel 3 ( ) [188] Andrew Lunn 3 ( +7) [ 82] Bytedance 4 ( +1) [124] RedHat 4 ( +4) [ 76] AMD 5 ( +1) [ 87] Linaro 5 (***) [ 70] SUSE 6 ( +1) [ 82] Enfabrica 6 ( +7) [ 57] Marvell 7 ( -3) [ 67] Google 8 ( +2) [ 58] Linux Foundation 9 (+12) [ 56] Broadcom 10 ( +4) [ 52] ARM 11 (***) [ 45] Microchip 12 ( +3) [ 41] nVidia The semi-automated changes from Huawei have returned after a few releases of relative calm, putting the company firmly as #1 negative contributor from the reviewing perspective. This saves Intel from going to #1, but note that in absolute terms the "negative" side of the ranking got a lot worse. Previously first three positions had scores of 55, 42 and 40, so they would *not even make the top 6* now! SUSE is likely a temporary blip due to work from Hannes, but the other companies on the list should take a hard look at themselves. Not much movement on the "good" side. With the exception of nVidia, the changes there seem to be mostly by posting volume not increase in reviews. Thanks to everyone who contributed code to networking trees in this release cycle, and huge thanks to everyone reviewing! -- No major changes to the stats generation process in this release, I focused on minor improvements to parsing and matching people to companies. Code: https://github.com/kuba-moo/ml-stat
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