Beispiel #1
0
func CheckPodsExceedingFreeResources(pods []*api.Pod, capacity api.ResourceList) (fitting []*api.Pod, notFittingCPU, notFittingMemory []*api.Pod) {
	totalMilliCPU := capacity.Cpu().MilliValue()
	totalMemory := capacity.Memory().Value()
	milliCPURequested := int64(0)
	memoryRequested := int64(0)
	for _, pod := range pods {
		podRequest := getResourceRequest(pod)
		fitsCPU := totalMilliCPU == 0 || (totalMilliCPU-milliCPURequested) >= podRequest.milliCPU
		fitsMemory := totalMemory == 0 || (totalMemory-memoryRequested) >= podRequest.memory
		if !fitsCPU {
			// the pod doesn't fit due to CPU request
			notFittingCPU = append(notFittingCPU, pod)
			continue
		}
		if !fitsMemory {
			// the pod doesn't fit due to Memory request
			notFittingMemory = append(notFittingMemory, pod)
			continue
		}
		// the pod fits
		milliCPURequested += podRequest.milliCPU
		memoryRequested += podRequest.memory
		fitting = append(fitting, pod)
	}
	return
}
Beispiel #2
0
// TODO: Consider setting default as a fixed fraction of machine capacity (take "capacity api.ResourceList"
// as an additional argument here) rather than using constants
func getNonzeroRequests(requests *api.ResourceList) (int64, int64) {
	var out_millicpu, out_memory int64
	// Override if un-set, but not if explicitly set to zero
	if (*requests.Cpu() == resource.Quantity{}) {
		out_millicpu = defaultMilliCpuRequest
	} else {
		out_millicpu = requests.Cpu().MilliValue()
	}
	// Override if un-set, but not if explicitly set to zero
	if (*requests.Memory() == resource.Quantity{}) {
		out_memory = defaultMemoryRequest
	} else {
		out_memory = requests.Memory().Value()
	}
	return out_millicpu, out_memory
}