// PodFitsResources calculates fit based on requested, rather than used resources
func (r *ResourceFit) PodFitsResources(pod api.Pod, existingPods []api.Pod, node string) (bool, error) {
podRequest := getResourceRequest(&pod)
if podRequest.milliCPU == 0 && podRequest.memory == 0 {
// no resources requested always fits.
return true, nil
}
info, err := r.info.GetNodeInfo(node)
if err != nil {
return false, err
}
milliCPURequested := 0
memoryRequested := 0
for ix := range existingPods {
existingRequest := getResourceRequest(&existingPods[ix])
milliCPURequested += existingRequest.milliCPU
memoryRequested += existingRequest.memory
}
// TODO: convert to general purpose resource matching, when pods ask for resources
totalMilliCPU := int(resources.GetFloatResource(info.NodeResources.Capacity, resources.CPU, 0) * 1000)
totalMemory := resources.GetIntegerResource(info.NodeResources.Capacity, resources.Memory, 0)
fitsCPU := totalMilliCPU == 0 || (totalMilliCPU-milliCPURequested) >= podRequest.milliCPU
fitsMemory := totalMemory == 0 || (totalMemory-memoryRequested) >= podRequest.memory
glog.V(3).Infof("Calculated fit: cpu: %s, memory %s", fitsCPU, fitsMemory)
return fitsCPU && fitsMemory, nil
}
// PodFitsResources calculates fit based on requested, rather than used resources
func (r *ResourceFit) PodFitsResources(pod api.Pod, existingPods []api.Pod, node string) (bool, error) {
podRequest := getResourceRequest(&pod)
if podRequest.milliCPU == 0 && podRequest.memory == 0 {
// no resources requested always fits.
return true, nil
}
info, err := r.info.GetNodeInfo(node)
if err != nil {
return false, err
}
// check wether exsit free VM, only for bridge mode
vmNum := len(info.Spec.VMs)
if pod.Spec.NetworkMode == api.PodNetworkModeBridge && vmNum <= len(existingPods) {
return false, nil
}
milliCPURequested := 0
memoryRequested := 0
coreRequested := 0
diskRequested := 0
for ix := range existingPods {
existingRequest := getResourceRequest(&existingPods[ix])
milliCPURequested += existingRequest.milliCPU
memoryRequested += existingRequest.memory
coreRequested += existingRequest.core
diskRequested += existingRequest.disk
}
// TODO: convert to general purpose resource matching, when pods ask for resources
totalMilliCPU := int(resources.GetFloatResource(info.Spec.Capacity, resources.CPU, 0) * 1000)
totalMemory := resources.GetIntegerResource(info.Spec.Capacity, resources.Memory, 0)
totalCore := resources.GetIntegerResource(info.Spec.Capacity, resources.Core, 0)
totalDisk := resources.GetIntegerResource(info.Spec.Capacity, resources.Disk, 0)
fitsCPU := totalMilliCPU == 0 || (totalMilliCPU-milliCPURequested) >= podRequest.milliCPU
fitsMemory := totalMemory == 0 || (totalMemory-memoryRequested) >= podRequest.memory
fitsCore := totalCore == 0 || (totalCore-coreRequested) >= podRequest.core
fitsDisk := totalDisk == 0 || (totalDisk-diskRequested) >= podRequest.disk
glog.V(3).Infof("Calculated fit: cpu: %s, memory %s, core: %s, disk: %s", fitsCPU, fitsMemory, fitsCore, fitsDisk)
return fitsCPU && fitsMemory && fitsCore && fitsDisk, nil
}
