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feat: refactoring thresholds and usage assessment

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this commit refactors the thresholds and usage assessment for the node
utilization plugins. both high and low plugins are affected by this
change.
This commit is contained in:
Ricardo Maraschini
2025-03-13 20:52:20 +01:00
parent b300faece0
commit 87ba84b2ad
9 changed files with 1233 additions and 240 deletions
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121
pkg/framework/plugins/nodeutilization/nodeutilization_test.go
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@@ -17,7 +17,7 @@ limitations under the License.
package nodeutilization
import (
"math"
"reflect"
"testing"
v1 "k8s.io/api/core/v1"
@@ -56,45 +56,6 @@ var (
extendedResource = v1.ResourceName("example.com/foo")
)
func TestResourceUsagePercentages(t *testing.T) {
resourceUsagePercentage := resourceUsagePercentages(
api.ReferencedResourceList{
v1.ResourceCPU: resource.NewMilliQuantity(1220, resource.DecimalSI),
v1.ResourceMemory: resource.NewQuantity(3038982964, resource.BinarySI),
v1.ResourcePods: resource.NewQuantity(11, resource.BinarySI),
},
&v1.Node{
Status: v1.NodeStatus{
Capacity: v1.ResourceList{
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
v1.ResourceMemory: *resource.NewQuantity(3977868*1024, resource.BinarySI),
v1.ResourcePods: *resource.NewQuantity(29, resource.BinarySI),
},
Allocatable: v1.ResourceList{
v1.ResourceCPU: *resource.NewMilliQuantity(1930, resource.DecimalSI),
v1.ResourceMemory: *resource.NewQuantity(3287692*1024, resource.BinarySI),
v1.ResourcePods: *resource.NewQuantity(29, resource.BinarySI),
},
},
},
true,
)
expectedUsageInIntPercentage := map[v1.ResourceName]float64{
v1.ResourceCPU: 63,
v1.ResourceMemory: 90,
v1.ResourcePods: 37,
}
for resourceName, percentage := range expectedUsageInIntPercentage {
if math.Floor(float64(resourceUsagePercentage[resourceName])) != percentage {
t.Errorf("Incorrect percentange computation, expected %v, got math.Floor(%v) instead", percentage, resourceUsagePercentage[resourceName])
}
}
t.Logf("resourceUsagePercentage: %#v\n", resourceUsagePercentage)
}
func TestSortNodesByUsage(t *testing.T) {
tests := []struct {
name string
@@ -173,3 +134,83 @@ func TestSortNodesByUsage(t *testing.T) {
})
}
}
func TestResourceUsageToResourceThreshold(t *testing.T) {
for _, tt := range []struct {
name string
usage api.ReferencedResourceList
capacity api.ReferencedResourceList
expected api.ResourceThresholds
}{
{
name: "10 percent",
usage: api.ReferencedResourceList{
v1.ResourceCPU: resource.NewMilliQuantity(100, resource.DecimalSI),
},
capacity: api.ReferencedResourceList{
v1.ResourceCPU: resource.NewMilliQuantity(1000, resource.DecimalSI),
},
expected: api.ResourceThresholds{v1.ResourceCPU: 10},
},
{
name: "zeroed out capacity",
usage: api.ReferencedResourceList{
v1.ResourceCPU: resource.NewMilliQuantity(100, resource.DecimalSI),
},
capacity: api.ReferencedResourceList{
v1.ResourceCPU: resource.NewMilliQuantity(0, resource.DecimalSI),
},
expected: api.ResourceThresholds{v1.ResourceCPU: 0},
},
{
name: "non existing usage",
usage: api.ReferencedResourceList{
"does-not-exist": resource.NewMilliQuantity(100, resource.DecimalSI),
},
capacity: api.ReferencedResourceList{
v1.ResourceCPU: resource.NewMilliQuantity(100, resource.DecimalSI),
v1.ResourceMemory: resource.NewMilliQuantity(100, resource.DecimalSI),
},
expected: api.ResourceThresholds{},
},
{
name: "existing and non existing usage",
usage: api.ReferencedResourceList{
"does-not-exist": resource.NewMilliQuantity(100, resource.DecimalSI),
v1.ResourceCPU: resource.NewMilliQuantity(200, resource.DecimalSI),
},
capacity: api.ReferencedResourceList{
v1.ResourceCPU: resource.NewMilliQuantity(1000, resource.DecimalSI),
v1.ResourceMemory: resource.NewMilliQuantity(1000, resource.DecimalSI),
},
expected: api.ResourceThresholds{v1.ResourceCPU: 20},
},
{
name: "nil usage",
usage: api.ReferencedResourceList{
v1.ResourceCPU: nil,
},
capacity: api.ReferencedResourceList{
v1.ResourceCPU: resource.NewMilliQuantity(1000, resource.DecimalSI),
},
expected: api.ResourceThresholds{},
},
{
name: "nil capacity",
usage: api.ReferencedResourceList{
v1.ResourceCPU: resource.NewMilliQuantity(100, resource.DecimalSI),
},
capacity: api.ReferencedResourceList{
v1.ResourceCPU: nil,
},
expected: api.ResourceThresholds{},
},
} {
t.Run(tt.name, func(t *testing.T) {
result := ResourceUsageToResourceThreshold(tt.usage, tt.capacity)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("Expected %v, got %v", tt.expected, result)
}
})
}
}