I've now seen this failure twice. Both times in our core+ext tests running on MacOS in Github.
main / o (macos-10.15, core+ext/openjdk11/pg-11) (pull_request)
2023-02-24T19:18:54.7827060Z lein test :only puppetlabs.puppetdb.cli.benchmark-test/benchmark-runs-at-correct-rate
2023-02-24T19:18:54.7839610Z
2023-02-24T19:18:54.7840350Z FAIL in (benchmark-runs-at-correct-rate) (benchmark_test.clj:205)
2023-02-24T19:18:54.7840660Z expected: (<= 2.1 elapsed 3.9)
2023-02-24T19:18:54.7840880Z actual: (not (<= 2.1 3.946 3.9))