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Add new test cases for GetPreferredAllocation() in allocation path

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This commit is contained in:
Kevin Klues 2020-07-02 15:16:07 +00:00
parent 83f18d9975
commit 5bd0db0b1f
1 changed files with 169 additions and 7 deletions
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176
pkg/kubelet/cm/devicemanager/topology_hints_test.go
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@ -17,6 +17,7 @@ limitations under the License.
package devicemanager
import (
"fmt"
"reflect"
"sort"
"testing"
@ -431,13 +432,15 @@ func TestGetTopologyHints(t *testing.T) {
func TestTopologyAlignedAllocation(t *testing.T) {
tcases := []struct {
description string
resource string
request int
devices []pluginapi.Device
allocatedDevices []string
hint topologymanager.TopologyHint
expectedAlignment map[int]int
description string
resource string
request int
devices []pluginapi.Device
allocatedDevices []string
hint topologymanager.TopologyHint
getPreferredAllocationFunc func(available, mustInclude []string, size int) (*pluginapi.PreferredAllocationResponse, error)
expectedPreferredAllocation []string
expectedAlignment map[int]int
}{
{
description: "Single Request, no alignment",
@ -583,6 +586,152 @@ func TestTopologyAlignedAllocation(t *testing.T) {
},
expectedAlignment: map[int]int{1: 2, 3: 2},
},
{
description: "Request for 5, socket 0, preferred aligned accepted",
resource: "resource",
request: 5,
devices: func() []pluginapi.Device {
devices := []pluginapi.Device{}
for i := 0; i < 100; i++ {
id := fmt.Sprintf("Dev%d", i)
devices = append(devices, makeNUMADevice(id, 0))
}
for i := 100; i < 200; i++ {
id := fmt.Sprintf("Dev%d", i)
devices = append(devices, makeNUMADevice(id, 1))
}
return devices
}(),
hint: topologymanager.TopologyHint{
NUMANodeAffinity: makeSocketMask(0),
Preferred: true,
},
getPreferredAllocationFunc: func(available, mustInclude []string, size int) (*pluginapi.PreferredAllocationResponse, error) {
return &pluginapi.PreferredAllocationResponse{
ContainerResponses: []*pluginapi.ContainerPreferredAllocationResponse{
{DeviceIDs: []string{"Dev0", "Dev19", "Dev83", "Dev42", "Dev77"}},
},
}, nil
},
expectedPreferredAllocation: []string{"Dev0", "Dev19", "Dev83", "Dev42", "Dev77"},
expectedAlignment: map[int]int{0: 5},
},
{
description: "Request for 5, socket 0, preferred aligned accepted, unaligned ignored",
resource: "resource",
request: 5,
devices: func() []pluginapi.Device {
devices := []pluginapi.Device{}
for i := 0; i < 100; i++ {
id := fmt.Sprintf("Dev%d", i)
devices = append(devices, makeNUMADevice(id, 0))
}
for i := 100; i < 200; i++ {
id := fmt.Sprintf("Dev%d", i)
devices = append(devices, makeNUMADevice(id, 1))
}
return devices
}(),
hint: topologymanager.TopologyHint{
NUMANodeAffinity: makeSocketMask(0),
Preferred: true,
},
getPreferredAllocationFunc: func(available, mustInclude []string, size int) (*pluginapi.PreferredAllocationResponse, error) {
return &pluginapi.PreferredAllocationResponse{
ContainerResponses: []*pluginapi.ContainerPreferredAllocationResponse{
{DeviceIDs: []string{"Dev0", "Dev19", "Dev83", "Dev150", "Dev186"}},
},
}, nil
},
expectedPreferredAllocation: []string{"Dev0", "Dev19", "Dev83"},
expectedAlignment: map[int]int{0: 5},
},
{
description: "Request for 5, socket 1, preferred aligned accepted, bogus ignored",
resource: "resource",
request: 5,
devices: func() []pluginapi.Device {
devices := []pluginapi.Device{}
for i := 0; i < 100; i++ {
id := fmt.Sprintf("Dev%d", i)
devices = append(devices, makeNUMADevice(id, 1))
}
return devices
}(),
hint: topologymanager.TopologyHint{
NUMANodeAffinity: makeSocketMask(1),
Preferred: true,
},
getPreferredAllocationFunc: func(available, mustInclude []string, size int) (*pluginapi.PreferredAllocationResponse, error) {
return &pluginapi.PreferredAllocationResponse{
ContainerResponses: []*pluginapi.ContainerPreferredAllocationResponse{
{DeviceIDs: []string{"Dev0", "Dev19", "Dev83", "bogus0", "bogus1"}},
},
}, nil
},
expectedPreferredAllocation: []string{"Dev0", "Dev19", "Dev83"},
expectedAlignment: map[int]int{1: 5},
},
{
description: "Request for 5, multisocket, preferred accepted",
resource: "resource",
request: 5,
devices: func() []pluginapi.Device {
devices := []pluginapi.Device{}
for i := 0; i < 3; i++ {
id := fmt.Sprintf("Dev%d", i)
devices = append(devices, makeNUMADevice(id, 0))
}
for i := 3; i < 100; i++ {
id := fmt.Sprintf("Dev%d", i)
devices = append(devices, makeNUMADevice(id, 1))
}
return devices
}(),
hint: topologymanager.TopologyHint{
NUMANodeAffinity: makeSocketMask(0),
Preferred: true,
},
getPreferredAllocationFunc: func(available, mustInclude []string, size int) (*pluginapi.PreferredAllocationResponse, error) {
return &pluginapi.PreferredAllocationResponse{
ContainerResponses: []*pluginapi.ContainerPreferredAllocationResponse{
{DeviceIDs: []string{"Dev0", "Dev1", "Dev2", "Dev42", "Dev83"}},
},
}, nil
},
expectedPreferredAllocation: []string{"Dev0", "Dev1", "Dev2", "Dev42", "Dev83"},
expectedAlignment: map[int]int{0: 3, 1: 2},
},
{
description: "Request for 5, multisocket, preferred unaligned accepted, bogus ignored",
resource: "resource",
request: 5,
devices: func() []pluginapi.Device {
devices := []pluginapi.Device{}
for i := 0; i < 3; i++ {
id := fmt.Sprintf("Dev%d", i)
devices = append(devices, makeNUMADevice(id, 0))
}
for i := 3; i < 100; i++ {
id := fmt.Sprintf("Dev%d", i)
devices = append(devices, makeNUMADevice(id, 1))
}
return devices
}(),
hint: topologymanager.TopologyHint{
NUMANodeAffinity: makeSocketMask(0),
Preferred: true,
},
getPreferredAllocationFunc: func(available, mustInclude []string, size int) (*pluginapi.PreferredAllocationResponse, error) {
return &pluginapi.PreferredAllocationResponse{
ContainerResponses: []*pluginapi.ContainerPreferredAllocationResponse{
{DeviceIDs: []string{"Dev0", "Dev1", "Dev2", "Dev42", "bogus0"}},
},
}, nil
},
expectedPreferredAllocation: []string{"Dev0", "Dev1", "Dev2", "Dev42"},
expectedAlignment: map[int]int{0: 3, 1: 2},
},
}
for _, tc := range tcases {
m := ManagerImpl{
@ -605,6 +754,15 @@ func TestTopologyAlignedAllocation(t *testing.T) {
m.healthyDevices[tc.resource].Insert(d.ID)
}
if tc.getPreferredAllocationFunc != nil {
m.endpoints[tc.resource] = endpointInfo{
e: &MockEndpoint{
getPreferredAllocationFunc: tc.getPreferredAllocationFunc,
},
opts: &pluginapi.DevicePluginOptions{GetPreferredAllocationAvailable: true},
}
}
allocated, err := m.devicesToAllocate("podUID", "containerName", tc.resource, tc.request, sets.NewString())
if err != nil {
t.Errorf("Unexpected error: %v", err)
@ -615,6 +773,10 @@ func TestTopologyAlignedAllocation(t *testing.T) {
t.Errorf("%v. expected allocation size: %v but got: %v", tc.description, tc.request, len(allocated))
}
if !allocated.HasAll(tc.expectedPreferredAllocation...) {
t.Errorf("%v. expected preferred allocation: %v but not present in: %v", tc.description, tc.expectedPreferredAllocation, allocated.UnsortedList())
}
alignment := make(map[int]int)
if m.deviceHasTopologyAlignment(tc.resource) {
for d := range allocated {