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Precompute pod resources

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This commit is contained in:
Wojciech Tyczynski 2016-07-08 14:59:32 +02:00
parent e8e8e2d086
commit 4eed5e07a5
1 changed files with 14 additions and 5 deletions
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19
plugin/pkg/scheduler/algorithm/predicates/predicates.go
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@ -65,10 +65,10 @@ func (c *CachedNodeInfo) GetNodeInfo(id string) (*api.Node, error) {
return node.(*api.Node), nil
}
// podMetadata defines a type, that is an expected type that is passed
// as metadata for predicate functions
// podMetadata is a type that is passed as metadata for predicate functions
type predicateMetadata struct {
podBestEffort bool
podRequest *resourceRequest
}
func PredicateMetadata(pod *api.Pod) interface{} {
@ -78,6 +78,7 @@ func PredicateMetadata(pod *api.Pod) interface{} {
}
return &predicateMetadata{
podBestEffort: isPodBestEffort(pod),
podRequest: getResourceRequest(pod),
}
}
@ -405,7 +406,7 @@ type resourceRequest struct {
nvidiaGPU int64
}
func getResourceRequest(pod *api.Pod) resourceRequest {
func getResourceRequest(pod *api.Pod) *resourceRequest {
result := resourceRequest{}
for _, container := range pod.Spec.Containers {
requests := container.Resources.Requests
@ -423,7 +424,7 @@ func getResourceRequest(pod *api.Pod) resourceRequest {
result.milliCPU = cpu
}
}
return result
return &result
}
func CheckPodsExceedingFreeResources(pods []*api.Pod, allocatable api.ResourceList) (fitting []*api.Pod, notFittingCPU, notFittingMemory, notFittingNvidiaGPU []*api.Pod) {
@ -477,7 +478,15 @@ func PodFitsResources(pod *api.Pod, meta interface{}, nodeInfo *schedulercache.N
return false,
newInsufficientResourceError(podCountResourceName, 1, int64(len(nodeInfo.Pods())), allowedPodNumber)
}
podRequest := getResourceRequest(pod)
var podRequest *resourceRequest
predicateMeta, ok := meta.(*predicateMetadata)
if ok {
podRequest = predicateMeta.podRequest
} else {
// We couldn't parse metadata - fallback to computing it.
podRequest = getResourceRequest(pod)
}
if podRequest.milliCPU == 0 && podRequest.memory == 0 && podRequest.nvidiaGPU == 0 {
return true, nil
}