mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-22 11:21:47 +00:00
Scheduler support for hugepages
This commit is contained in:
Derek Carr
parent
1ec2a69d9a
commit
41a4e2ccad
@ -10,6 +10,7 @@ go_library(
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srcs = ["qos.go"],
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deps = [
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"//pkg/api:go_default_library",
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"//pkg/api/helper:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",
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],
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@ -22,11 +22,16 @@ import (
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"k8s.io/apimachinery/pkg/api/resource"
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"k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/helper"
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)
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// supportedComputeResources is the list of compute resources for with QoS is supported.
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var supportedQoSComputeResources = sets.NewString(string(api.ResourceCPU), string(api.ResourceMemory))
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func isSupportedQoSComputeResource(name api.ResourceName) bool {
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return supportedQoSComputeResources.Has(string(name)) || helper.IsHugePageResourceName(name)
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}
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// GetPodQOS returns the QoS class of a pod.
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// A pod is besteffort if none of its containers have specified any requests or limits.
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// A pod is guaranteed only when requests and limits are specified for all the containers and they are equal.
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@ -39,7 +44,7 @@ func GetPodQOS(pod *api.Pod) api.PodQOSClass {
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for _, container := range pod.Spec.Containers {
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// process requests
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for name, quantity := range container.Resources.Requests {
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if !supportedQoSComputeResources.Has(string(name)) {
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if !isSupportedQoSComputeResource(name) {
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continue
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}
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if quantity.Cmp(zeroQuantity) == 1 {
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@ -55,7 +60,7 @@ func GetPodQOS(pod *api.Pod) api.PodQOSClass {
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// process limits
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qosLimitsFound := sets.NewString()
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for name, quantity := range container.Resources.Limits {
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if !supportedQoSComputeResources.Has(string(name)) {
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if !isSupportedQoSComputeResource(name) {
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continue
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}
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if quantity.Cmp(zeroQuantity) == 1 {
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@ -132,7 +132,7 @@ func TestGetPodQOS(t *testing.T) {
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},
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{
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pod: newPod("burstable-hugepages", []v1.Container{
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newContainer("burstable", getResourceList("0", "0"), addResource("hugepages-2Mi", "1Gi", getResourceList("0", "0"))),
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newContainer("burstable", addResource("hugepages-2Mi", "1Gi", getResourceList("0", "0")), addResource("hugepages-2Mi", "1Gi", getResourceList("0", "0"))),
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}),
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expected: v1.PodQOSBurstable,
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},
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@ -147,7 +147,7 @@ func TestGetPodQOS(t *testing.T) {
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k8sv1.Convert_v1_Pod_To_api_Pod(testCase.pod, &pod, nil)
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if actual := qos.GetPodQOS(&pod); api.PodQOSClass(testCase.expected) != actual {
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t.Errorf("[%d]: invalid qos pod %s, expected: %s, actual: %s", id, testCase.pod.Name, testCase.expected, actual)
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t.Errorf("[%d]: conversion invalid qos pod %s, expected: %s, actual: %s", id, testCase.pod.Name, testCase.expected, actual)
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}
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}
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}
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@ -509,6 +509,12 @@ func GetResourceRequest(pod *v1.Pod) *schedulercache.Resource {
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result.SetExtended(rName, value)
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}
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}
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if v1helper.IsHugePageResourceName(rName) {
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value := rQuantity.Value()
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if value > result.HugePages[rName] {
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result.SetHugePages(rName, value)
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}
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}
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}
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}
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}
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@ -542,7 +548,12 @@ func PodFitsResources(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.No
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// We couldn't parse metadata - fallback to computing it.
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podRequest = GetResourceRequest(pod)
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}
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if podRequest.MilliCPU == 0 && podRequest.Memory == 0 && podRequest.NvidiaGPU == 0 && podRequest.EphemeralStorage == 0 && len(podRequest.ExtendedResources) == 0 {
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if podRequest.MilliCPU == 0 &&
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podRequest.Memory == 0 &&
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podRequest.NvidiaGPU == 0 &&
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podRequest.EphemeralStorage == 0 &&
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len(podRequest.ExtendedResources) == 0 &&
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len(podRequest.HugePages) == 0 {
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return len(predicateFails) == 0, predicateFails, nil
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}
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@ -567,6 +578,12 @@ func PodFitsResources(pod *v1.Pod, meta interface{}, nodeInfo *schedulercache.No
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}
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}
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for rName, rQuant := range podRequest.HugePages {
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if allocatable.HugePages[rName] < rQuant+nodeInfo.RequestedResource().HugePages[rName] {
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predicateFails = append(predicateFails, NewInsufficientResourceError(rName, podRequest.HugePages[rName], nodeInfo.RequestedResource().HugePages[rName], allocatable.HugePages[rName]))
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}
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}
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if glog.V(10) {
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if len(predicateFails) == 0 {
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// We explicitly don't do glog.V(10).Infof() to avoid computing all the parameters if this is
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@ -73,11 +73,12 @@ func (pvs FakePersistentVolumeInfo) GetPersistentVolumeInfo(pvID string) (*v1.Pe
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}
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var (
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opaqueResourceA = v1helper.OpaqueIntResourceName("AAA")
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opaqueResourceB = v1helper.OpaqueIntResourceName("BBB")
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opaqueResourceA = v1helper.OpaqueIntResourceName("AAA")
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opaqueResourceB = v1helper.OpaqueIntResourceName("BBB")
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hugePageResourceA = v1helper.HugePageResourceName(resource.MustParse("2Mi"))
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)
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func makeResources(milliCPU, memory, nvidiaGPUs, pods, opaqueA, storage int64) v1.NodeResources {
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func makeResources(milliCPU, memory, nvidiaGPUs, pods, opaqueA, storage, hugePageA int64) v1.NodeResources {
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return v1.NodeResources{
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Capacity: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(milliCPU, resource.DecimalSI),
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@ -86,11 +87,12 @@ func makeResources(milliCPU, memory, nvidiaGPUs, pods, opaqueA, storage int64) v
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v1.ResourceNvidiaGPU: *resource.NewQuantity(nvidiaGPUs, resource.DecimalSI),
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opaqueResourceA: *resource.NewQuantity(opaqueA, resource.DecimalSI),
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v1.ResourceEphemeralStorage: *resource.NewQuantity(storage, resource.BinarySI),
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hugePageResourceA: *resource.NewQuantity(hugePageA, resource.BinarySI),
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},
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}
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}
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func makeAllocatableResources(milliCPU, memory, nvidiaGPUs, pods, opaqueA, storage int64) v1.ResourceList {
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func makeAllocatableResources(milliCPU, memory, nvidiaGPUs, pods, opaqueA, storage, hugePageA int64) v1.ResourceList {
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return v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(milliCPU, resource.DecimalSI),
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v1.ResourceMemory: *resource.NewQuantity(memory, resource.BinarySI),
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@ -98,6 +100,7 @@ func makeAllocatableResources(milliCPU, memory, nvidiaGPUs, pods, opaqueA, stora
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v1.ResourceNvidiaGPU: *resource.NewQuantity(nvidiaGPUs, resource.DecimalSI),
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opaqueResourceA: *resource.NewQuantity(opaqueA, resource.DecimalSI),
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v1.ResourceEphemeralStorage: *resource.NewQuantity(storage, resource.BinarySI),
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hugePageResourceA: *resource.NewQuantity(hugePageA, resource.BinarySI),
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}
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}
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@ -348,10 +351,38 @@ func TestPodFitsResources(t *testing.T) {
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test: "opaque resource allocatable enforced for unknown resource for init container",
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reasons: []algorithm.PredicateFailureReason{NewInsufficientResourceError(opaqueResourceB, 1, 0, 0)},
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},
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{
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pod: newResourcePod(
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schedulercache.Resource{MilliCPU: 1, Memory: 1, HugePages: map[v1.ResourceName]int64{hugePageResourceA: 10}}),
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nodeInfo: schedulercache.NewNodeInfo(
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newResourcePod(schedulercache.Resource{MilliCPU: 0, Memory: 0, HugePages: map[v1.ResourceName]int64{hugePageResourceA: 0}})),
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fits: false,
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test: "hugepages resource capacity enforced",
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reasons: []algorithm.PredicateFailureReason{NewInsufficientResourceError(hugePageResourceA, 10, 0, 5)},
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},
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{
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pod: newResourceInitPod(newResourcePod(schedulercache.Resource{}),
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schedulercache.Resource{MilliCPU: 1, Memory: 1, HugePages: map[v1.ResourceName]int64{hugePageResourceA: 10}}),
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nodeInfo: schedulercache.NewNodeInfo(
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newResourcePod(schedulercache.Resource{MilliCPU: 0, Memory: 0, HugePages: map[v1.ResourceName]int64{hugePageResourceA: 0}})),
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fits: false,
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test: "hugepages resource capacity enforced for init container",
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reasons: []algorithm.PredicateFailureReason{NewInsufficientResourceError(hugePageResourceA, 10, 0, 5)},
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},
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{
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pod: newResourcePod(
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schedulercache.Resource{MilliCPU: 1, Memory: 1, HugePages: map[v1.ResourceName]int64{hugePageResourceA: 3}},
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schedulercache.Resource{MilliCPU: 1, Memory: 1, HugePages: map[v1.ResourceName]int64{hugePageResourceA: 3}}),
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nodeInfo: schedulercache.NewNodeInfo(
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newResourcePod(schedulercache.Resource{MilliCPU: 0, Memory: 0, HugePages: map[v1.ResourceName]int64{hugePageResourceA: 2}})),
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fits: false,
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test: "hugepages resource allocatable enforced for multiple containers",
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reasons: []algorithm.PredicateFailureReason{NewInsufficientResourceError(hugePageResourceA, 6, 2, 5)},
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},
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}
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for _, test := range enoughPodsTests {
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node := v1.Node{Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 5, 20).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 5, 20)}}
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node := v1.Node{Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 5, 20, 5).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 5, 20, 5)}}
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test.nodeInfo.SetNode(&node)
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fits, reasons, err := PodFitsResources(test.pod, PredicateMetadata(test.pod, nil), test.nodeInfo)
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if err != nil {
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@ -406,7 +437,7 @@ func TestPodFitsResources(t *testing.T) {
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},
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}
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for _, test := range notEnoughPodsTests {
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node := v1.Node{Status: v1.NodeStatus{Capacity: v1.ResourceList{}, Allocatable: makeAllocatableResources(10, 20, 0, 1, 0, 0)}}
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node := v1.Node{Status: v1.NodeStatus{Capacity: v1.ResourceList{}, Allocatable: makeAllocatableResources(10, 20, 0, 1, 0, 0, 0)}}
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test.nodeInfo.SetNode(&node)
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fits, reasons, err := PodFitsResources(test.pod, PredicateMetadata(test.pod, nil), test.nodeInfo)
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if err != nil {
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@ -464,7 +495,7 @@ func TestPodFitsResources(t *testing.T) {
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}
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for _, test := range storagePodsTests {
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node := v1.Node{Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 5, 20).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 5, 20)}}
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node := v1.Node{Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 5, 20, 5).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 5, 20, 5)}}
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test.nodeInfo.SetNode(&node)
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fits, reasons, err := PodFitsResources(test.pod, PredicateMetadata(test.pod, nil), test.nodeInfo)
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if err != nil {
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@ -1889,7 +1920,7 @@ func TestRunGeneralPredicates(t *testing.T) {
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newResourcePod(schedulercache.Resource{MilliCPU: 9, Memory: 19})),
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node: &v1.Node{
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ObjectMeta: metav1.ObjectMeta{Name: "machine1"},
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Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 0, 0)},
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Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 0, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 0, 0, 0)},
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},
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fits: true,
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wErr: nil,
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@ -1901,7 +1932,7 @@ func TestRunGeneralPredicates(t *testing.T) {
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newResourcePod(schedulercache.Resource{MilliCPU: 5, Memory: 19})),
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node: &v1.Node{
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ObjectMeta: metav1.ObjectMeta{Name: "machine1"},
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Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 0, 0)},
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Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 0, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 0, 0, 0)},
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},
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fits: false,
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wErr: nil,
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@ -1915,7 +1946,7 @@ func TestRunGeneralPredicates(t *testing.T) {
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pod: &v1.Pod{},
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nodeInfo: schedulercache.NewNodeInfo(
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newResourcePod(schedulercache.Resource{MilliCPU: 9, Memory: 19})),
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node: &v1.Node{Status: v1.NodeStatus{Capacity: makeResources(10, 20, 1, 32, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 1, 32, 0, 0)}},
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node: &v1.Node{Status: v1.NodeStatus{Capacity: makeResources(10, 20, 1, 32, 0, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 1, 32, 0, 0, 0)}},
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fits: true,
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wErr: nil,
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test: "no resources/port/host requested always fits on GPU machine",
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@ -1924,7 +1955,7 @@ func TestRunGeneralPredicates(t *testing.T) {
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pod: newResourcePod(schedulercache.Resource{MilliCPU: 3, Memory: 1, NvidiaGPU: 1}),
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nodeInfo: schedulercache.NewNodeInfo(
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newResourcePod(schedulercache.Resource{MilliCPU: 5, Memory: 10, NvidiaGPU: 1})),
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node: &v1.Node{Status: v1.NodeStatus{Capacity: makeResources(10, 20, 1, 32, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 1, 32, 0, 0)}},
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node: &v1.Node{Status: v1.NodeStatus{Capacity: makeResources(10, 20, 1, 32, 0, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 1, 32, 0, 0, 0)}},
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fits: false,
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wErr: nil,
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reasons: []algorithm.PredicateFailureReason{NewInsufficientResourceError(v1.ResourceNvidiaGPU, 1, 1, 1)},
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@ -1934,7 +1965,7 @@ func TestRunGeneralPredicates(t *testing.T) {
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pod: newResourcePod(schedulercache.Resource{MilliCPU: 3, Memory: 1, NvidiaGPU: 1}),
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nodeInfo: schedulercache.NewNodeInfo(
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newResourcePod(schedulercache.Resource{MilliCPU: 5, Memory: 10, NvidiaGPU: 0})),
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node: &v1.Node{Status: v1.NodeStatus{Capacity: makeResources(10, 20, 1, 32, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 1, 32, 0, 0)}},
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node: &v1.Node{Status: v1.NodeStatus{Capacity: makeResources(10, 20, 1, 32, 0, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 1, 32, 0, 0, 0)}},
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fits: true,
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wErr: nil,
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test: "enough GPU resource",
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@ -1948,7 +1979,7 @@ func TestRunGeneralPredicates(t *testing.T) {
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nodeInfo: schedulercache.NewNodeInfo(),
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node: &v1.Node{
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ObjectMeta: metav1.ObjectMeta{Name: "machine1"},
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Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 0, 0)},
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Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 0, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 0, 0, 0)},
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},
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fits: false,
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wErr: nil,
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@ -1960,7 +1991,7 @@ func TestRunGeneralPredicates(t *testing.T) {
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nodeInfo: schedulercache.NewNodeInfo(newPodWithPort(123)),
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node: &v1.Node{
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ObjectMeta: metav1.ObjectMeta{Name: "machine1"},
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Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 0, 0)},
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Status: v1.NodeStatus{Capacity: makeResources(10, 20, 0, 32, 0, 0, 0).Capacity, Allocatable: makeAllocatableResources(10, 20, 0, 32, 0, 0, 0)},
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},
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fits: false,
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wErr: nil,
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@ -3252,7 +3283,7 @@ func TestPodSchedulesOnNodeWithMemoryPressureCondition(t *testing.T) {
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ImagePullPolicy: "Always",
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// at least one requirement -> burstable pod
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Resources: v1.ResourceRequirements{
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Requests: makeAllocatableResources(100, 100, 100, 100, 0, 0),
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Requests: makeAllocatableResources(100, 100, 100, 100, 0, 0, 0),
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},
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},
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},
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@ -72,6 +72,7 @@ type Resource struct {
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// explicitly as int, to avoid conversions and improve performance.
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AllowedPodNumber int
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ExtendedResources map[v1.ResourceName]int64
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HugePages map[v1.ResourceName]int64
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}
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// New creates a Resource from ResourceList
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@ -103,6 +104,9 @@ func (r *Resource) Add(rl v1.ResourceList) {
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if v1helper.IsExtendedResourceName(rName) {
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r.AddExtended(rName, rQuant.Value())
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}
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if v1helper.IsHugePageResourceName(rName) {
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r.AddHugePages(rName, rQuant.Value())
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}
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}
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}
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}
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@ -118,6 +122,9 @@ func (r *Resource) ResourceList() v1.ResourceList {
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for rName, rQuant := range r.ExtendedResources {
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result[rName] = *resource.NewQuantity(rQuant, resource.DecimalSI)
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}
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for rName, rQuant := range r.HugePages {
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result[rName] = *resource.NewQuantity(rQuant, resource.BinarySI)
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}
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return result
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}
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@ -135,6 +142,12 @@ func (r *Resource) Clone() *Resource {
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res.ExtendedResources[k] = v
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}
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}
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if r.HugePages != nil {
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res.HugePages = make(map[v1.ResourceName]int64)
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for k, v := range r.HugePages {
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res.HugePages[k] = v
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}
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}
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return res
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}
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@ -150,6 +163,18 @@ func (r *Resource) SetExtended(name v1.ResourceName, quantity int64) {
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r.ExtendedResources[name] = quantity
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}
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func (r *Resource) AddHugePages(name v1.ResourceName, quantity int64) {
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r.SetHugePages(name, r.HugePages[name]+quantity)
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}
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func (r *Resource) SetHugePages(name v1.ResourceName, quantity int64) {
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// Lazily allocate hugepages resource map.
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if r.HugePages == nil {
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r.HugePages = map[v1.ResourceName]int64{}
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}
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r.HugePages[name] = quantity
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}
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// NewNodeInfo returns a ready to use empty NodeInfo object.
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// If any pods are given in arguments, their information will be aggregated in
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// the returned object.
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@ -307,6 +332,12 @@ func (n *NodeInfo) addPod(pod *v1.Pod) {
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for rName, rQuant := range res.ExtendedResources {
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n.requestedResource.ExtendedResources[rName] += rQuant
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}
|
||||
if n.requestedResource.HugePages == nil && len(res.HugePages) > 0 {
|
||||
n.requestedResource.HugePages = map[v1.ResourceName]int64{}
|
||||
}
|
||||
for rName, rQuant := range res.HugePages {
|
||||
n.requestedResource.HugePages[rName] += rQuant
|
||||
}
|
||||
n.nonzeroRequest.MilliCPU += non0_cpu
|
||||
n.nonzeroRequest.Memory += non0_mem
|
||||
n.pods = append(n.pods, pod)
|
||||
@ -362,6 +393,12 @@ func (n *NodeInfo) removePod(pod *v1.Pod) error {
|
||||
for rName, rQuant := range res.ExtendedResources {
|
||||
n.requestedResource.ExtendedResources[rName] -= rQuant
|
||||
}
|
||||
if len(res.HugePages) > 0 && n.requestedResource.HugePages == nil {
|
||||
n.requestedResource.HugePages = map[v1.ResourceName]int64{}
|
||||
}
|
||||
for rName, rQuant := range res.HugePages {
|
||||
n.requestedResource.HugePages[rName] -= rQuant
|
||||
}
|
||||
n.nonzeroRequest.MilliCPU -= non0_cpu
|
||||
n.nonzeroRequest.Memory -= non0_mem
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user