@Test
    public void autoscaling_respects_group_limit() {
        var min = new ClusterResources( 2, 2, new NodeResources(1, 1, 1, 1));
        var now = new ClusterResources(5, 5, new NodeResources(3.0, 10, 10, 1));
        var max = new ClusterResources(18, 6, new NodeResources(100, 1000, 1000, 1));
        var fixture = DynamicProvisioningTester.fixture()
                                               .awsProdSetup(true)
                                               .initialResources(Optional.of(now))
                                               .capacity(Capacity.from(min, max))
                                               .build();
        fixture.tester().clock().advance(Duration.ofDays(2));
        fixture.loader().applyCpuLoad(0.5, 240);
        fixture.tester().assertResources("Scaling cpu up",
                                         6, 6, 4.8,  7.4, 22.3,
                                         fixture.autoscale());
    }
We prefer fewer nodes for container clusters as (we assume) they all use the same disk and memory
node-repository/src/test/java/com/yahoo/vespa/hosted/provision/autoscale/AutoscalingTest.java