I've noticed that the slowest task that we run in the commit queue is test_api_version_compatibility, it usually takes ~14 min.
From a quick look at the logs it seems we are spending 30 secs for each release compatibility check:
[2022/06/22 16:31:15.702] Performing idl check compatibility with release: idls/r5.0.0: [2022/06/22 16:31:15.702] Errors found while checking IDL compatibility: 0 errors: [2022/06/22 16:31:15.702] ------------------------------------------------ [2022/06/22 16:31:15.702] Errors found while checking IDL compatibility: 0 errors: [2022/06/22 16:31:15.702] ------------------------------------------------ [2022/06/22 16:31:48.046] Performing idl check compatibility with release: idls/r5.0.1: [2022/06/22 16:31:48.046] Errors found while checking IDL compatibility: 0 errors: [2022/06/22 16:31:48.046] ------------------------------------------------ [2022/06/22 16:31:48.046] Errors found while checking IDL compatibility: 0 errors: [2022/06/22 16:31:48.046] ------------------------------------------------ [2022/06/22 16:32:21.150] Performing idl check compatibility with release: idls/r5.0.2: [2022/06/22 16:32:21.150] Errors found while checking IDL compatibility: 0 errors: [2022/06/22 16:32:21.150] ------------------------------------------------ [2022/06/22 16:32:21.150] Errors found while checking IDL compatibility: 0 errors: