Function checkCPUStats

integration/tests/api/test_utils.go:48–67

Checks that CPU stats are valid.

(t *testing.T, stat *info.CpuStats)

// Checks that CPU stats are valid.
func checkCPUStats(t *testing.T, stat *info.CpuStats) {
	assert := assert.New(t)

	assert.NotEqual(0, stat.Usage.Total, "Total CPU usage should not be zero")

	// PerCPU CPU usage is not supported in cgroupv2 (cpuacct.usage_percpu)
	// https://github.com/google/cadvisor/issues/3065
	if !cgroups.IsCgroup2UnifiedMode() {
		assert.NotEmpty(stat.Usage.PerCpu, "Per-core usage should not be empty")

		totalUsage := uint64(0)
		for _, usage := range stat.Usage.PerCpu {
			totalUsage += usage
		}
		inDelta(t, stat.Usage.Total, totalUsage, uint64((5 * time.Millisecond).Nanoseconds()), "Per-core CPU usage")
	}

	inDelta(t, stat.Usage.Total, stat.Usage.User+stat.Usage.System, uint64((500 * time.Millisecond).Nanoseconds()), "User + system CPU usage")
	// TODO(rjnagal): Add verification for cpu load.
}

func checkMemoryStats(t *testing.T, stat *info.MemoryStats) {
	assert := assert.New(t)