PGO takes the profile as one of the inputs. Give it the same profile and you should get the same output. If you have a pipeline that does something like build,

PGO takes the profile as one of the inputs. Give it the same profile and you should get the same output. If you have a pipeline that does something like build, run and profile performance tests, then rebuild with PGO, then that won't be deterministic. But you've brought it on yourself in that case.