.sortedBy { -it.totalTime }
    return splitIntoBuckets(
        LinkedList(testProjectDurations),
        TestProjectDuration::totalTime,
        { largeElement: TestProjectDuration, size: Int -> largeElement.split(size) },
        { list: List<TestProjectDuration> -> MultipleTestProjectBucket(list) },
        numberOfBuckets,
        MAX_TEST_PROJECTS_PER_BUCKET,