pitrou opened a new issue, #50388: URL: https://github.com/apache/arrow/issues/50388
### Describe the bug, including details regarding any error messages, version, and platform. In several MSVC-based C++ builds, we can see that ccache [marks most compilation calls as uncacheable](https://github.com/apache/arrow/actions/runs/28687053996/job/85081568536#step:10:7407). This causes these builds to be much slower than desired and to consume more CI resources. ``` Cacheable calls: 7560 / 76069 ( 9.94%) Hits: 7033 / 7560 (93.03%) Direct: 7021 / 7033 (99.83%) Preprocessed: 12 / 7033 ( 0.17%) Misses: 527 / 7560 ( 6.97%) Uncacheable calls: 68509 / 76069 (90.06%) Called for linking: 5360 / 68509 ( 7.82%) Called for preprocessing: 560 / 68509 ( 0.82%) No input file: 80 / 68509 ( 0.12%) Unsupported compiler option: 62449 / 68509 (91.15%) Unsupported source language: 60 / 68509 ( 0.09%) ``` ### Component(s) C++, Continuous Integration -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
