On Fri, Apr 3, 2026 at 3:30 PM David Edelsohn <[email protected]> wrote: > > Hi, Andrew > > Thanks for analyzing this. It is very helpful. > > I'm curious about finer granularity information than commits and contributors > to the entire repository. The contents and size of the repository itself > have no held constant, which can skew the comparisons. Specifically, during > these periods GCC has added Algol68, Rust, and COBOL front-ends. Shifting > focus on some backends and rapid evolution of some backends. > > I'm curious about the trends for the core languages, their runtimes, and the > middle-end.
This is harder due to the current way GCC sources are structured. But I will try to create some scripts which does this but no promises. Also since the current scripts use the author on the git commits. It also does not track email changes nor it does add in if the commit was also co-authored by someone. I am thinking about having the testsuite as a separate bucket from the rest because there has been in recent years contributors which have just done testsuite improvements. Thanks, Andrew > > Cheers, David > > > > On Fri, Apr 3, 2026 at 6:15 PM Andrew Pinski via Gcc <[email protected]> wrote: >> >> So using James' git commit from >> https://inbox.sourceware.org/gcc/[email protected]/ . >> Here is the updated #s based on the releases. >> Since GCC 11. >> >> ----------------------------------------------------------------- >> Year | GCC11 | GCC12 | GCC13 | GCC14 | GCC15 | GCC16 | >> ----------------------------------------------------------------- >> Total Commits | 8294 | 8339 | 7244 | 10173 | 9583 | 8451 | >> Total Commitors | 309 | 288 | 317 | 399 | 380 | 393 | >> Average commits | 26 | 28 | 22 | 25 | 25 | 21 | >> ----------------------------------------------------------------- >> Number of committers with... | >> 0-19 commits | 238 | 218 | 249 | 298 | 281 | 306 | >> 20-39 commits | 24 | 26 | 30 | 38 | 39 | 37 | >> 40-59 commits | 13 | 7 | 11 | 18 | 19 | 17 | >> 60-79 commits | 9 | 4 | 7 | 11 | 10 | 6 | >> 80-99 commits | 4 | 8 | 4 | 8 | 9 | 4 | >> 100+ commits | 21 | 23 | 16 | 26 | 22 | 23 | >> ----------------------------------------------------------------- >> >> So if we look at this vs what was previously reported for 2001-2015, >> the number of contributers has almost doubled. The number of >> contributors for 100+ commits has been stable since 2015 (I didn't >> check GCC 7/8/9/10) (except for GCC 13, I have not looked into why >> though). >> >> GCC 16 release did have less commits than the previous 2 releases but >> I am not sure that is an issue though; I think C++26 reflection done >> as 1 commit rather than a few skewes the number of commits down. >> >> GCC is getting folks contributing a few commits and it is increased in >> the last few years. It has almost tripled since 2015 even (115 vs >> 306). Even the number of contributors has doubled since 2015 (190 vs >> 393). >> >> Thanks, >> Andrew Pinski >> >> Raw output: >> >> GCC 16/trunk: >> Total commits: 8451 >> Total Contributors: 393 >> Average commit count per contributor: 21.5038 >> 0-19 306 >> 20-39 37 >> 40-59 17 >> 60-79 6 >> 80-99 4 >> 100+ 23 >> >> GCC 15.1.0 release: >> Total commits: 9583 >> Total Contributors: 380 >> Average commit count per contributor: 25.2184 >> 0-19 281 >> 20-39 39 >> 40-59 19 >> 60-79 10 >> 80-99 9 >> 100+ 22 >> >> GCC 14.1.0 release: >> Total commits: 10173 >> Total Contributors: 399 >> Average commit count per contributor: 25.4962 >> 0-19 298 >> 20-39 38 >> 40-59 18 >> 60-79 11 >> 80-99 8 >> 100+ 26 >> >> GCC 13.1.0 release: >> Total commits: 7244 >> Total Contributors: 317 >> Average commit count per contributor: 22.8517 >> 0-19 249 >> 20-39 30 >> 40-59 11 >> 60-79 7 >> 80-99 4 >> 100+ 16 >> >> GCC 12.1.0 release: >> Total commits: 8339 >> Total Contributors: 288 >> Average commit count per contributor: 28.9549 >> 0-19 218 >> 20-39 26 >> 40-59 7 >> 60-79 6 >> 80-99 8 >> 100+ 23 >> >> GCC 11.1.0 release: >> Total commits: 8294 >> Total Contributors: 309 >> Average commit count per contributor: 26.8414 >> 0-19 238 >> 20-39 24 >> 40-59 13 >> 60-79 9 >> 80-99 4 >> 100+ 21
