adfc65ec23
This significantly reduces the surface area of the fieldmanager package by hiding all the private "managers" objects, as well as the interface that was made specifically for these. There is no reason to configure these.
150 lines
4.2 KiB
Go
150 lines
4.2 KiB
Go
/*
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Copyright 2020 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package apiserver
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import (
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"context"
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"encoding/json"
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"math/rand"
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"testing"
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"github.com/stretchr/testify/require"
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v1 "k8s.io/api/core/v1"
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k8sfuzz "k8s.io/apimachinery/pkg/api/apitesting/fuzzer"
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"k8s.io/apimachinery/pkg/api/meta"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/serializer"
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"k8s.io/apiserver/pkg/endpoints/handlers/fieldmanager"
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k8stest "k8s.io/kubernetes/pkg/api/testing"
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)
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func convertToUnstructured(b *testing.B, obj runtime.Object) runtime.Object {
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converter := fieldmanager.NewDeducedTypeConverter()
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typed, err := converter.ObjectToTyped(obj)
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require.NoError(b, err)
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res, err := converter.TypedToObject(typed)
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require.NoError(b, err)
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return res
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}
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func doBench(b *testing.B, useUnstructured bool, shortCircuit bool) {
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var (
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expectedLarge runtime.Object
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actualLarge runtime.Object
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expectedSmall runtime.Object
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actualSmall runtime.Object
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)
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scheme := runtime.NewScheme()
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codecs := serializer.NewCodecFactory(scheme)
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seed := rand.Int63()
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fuzzer := k8sfuzz.FuzzerFor(k8stest.FuzzerFuncs, rand.NewSource(seed), codecs)
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fuzzer.NilChance(0)
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fuzzer.MaxDepth(1000).NilChance(0.2).NumElements(2, 15)
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pod := &v1.Pod{}
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fuzzer.Fuzz(pod)
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fuzzer.NilChance(0.2).NumElements(10, 100).MaxDepth(10)
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deployment := &v1.Endpoints{}
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fuzzer.Fuzz(deployment)
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bts, err := json.Marshal(deployment)
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require.NoError(b, err)
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b.Logf("Small (Deployment): %v bytes", len(bts))
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bts, err = json.Marshal(pod)
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require.NoError(b, err)
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b.Logf("Large (Pod): %v bytes", len(bts))
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expectedLarge = deployment
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expectedSmall = pod
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if useUnstructured {
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expectedSmall = convertToUnstructured(b, expectedSmall)
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expectedLarge = convertToUnstructured(b, expectedLarge)
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}
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actualLarge = expectedLarge.DeepCopyObject()
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actualSmall = expectedSmall.DeepCopyObject()
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if shortCircuit {
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// Modify managed fields of the compared objects to induce a short circuit
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now := metav1.Now()
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extraEntry := &metav1.ManagedFieldsEntry{
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Manager: "sidecar_controller",
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Operation: metav1.ManagedFieldsOperationApply,
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APIVersion: "apps/v1",
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Time: &now,
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FieldsType: "FieldsV1",
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FieldsV1: &metav1.FieldsV1{
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Raw: []byte(`{"f:metadata":{"f:labels":{"f:sidecar_version":{}}},"f:spec":{"f:template":{"f:spec":{"f:containers":{"k:{\"name\":\"sidecar\"}":{".":{},"f:image":{},"f:name":{}}}}}}}`),
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},
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}
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largeMeta, err := meta.Accessor(actualLarge)
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require.NoError(b, err)
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largeMeta.SetManagedFields(append(largeMeta.GetManagedFields(), *extraEntry))
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smallMeta, err := meta.Accessor(actualSmall)
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require.NoError(b, err)
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smallMeta.SetManagedFields(append(smallMeta.GetManagedFields(), *extraEntry))
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}
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b.ResetTimer()
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b.Run("Large", func(b2 *testing.B) {
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for i := 0; i < b2.N; i++ {
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if _, err := fieldmanager.IgnoreManagedFieldsTimestampsTransformer(
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context.TODO(),
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actualLarge,
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expectedLarge,
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); err != nil {
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b2.Fatal(err)
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}
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}
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})
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b.Run("Small", func(b2 *testing.B) {
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for i := 0; i < b2.N; i++ {
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if _, err := fieldmanager.IgnoreManagedFieldsTimestampsTransformer(
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context.TODO(),
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actualSmall,
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expectedSmall,
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); err != nil {
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b2.Fatal(err)
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}
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}
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})
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}
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func BenchmarkIgnoreManagedFieldsTimestampTransformerStructuredShortCircuit(b *testing.B) {
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doBench(b, false, true)
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}
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func BenchmarkIgnoreManagedFieldsTimestampTransformerStructuredWorstCase(b *testing.B) {
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doBench(b, false, false)
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}
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func BenchmarkIgnoreManagedFieldsTimestampTransformerUnstructuredShortCircuit(b *testing.B) {
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doBench(b, true, true)
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}
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func BenchmarkIgnoreManagedFieldsTimestampTransformerUnstructuredWorstCase(b *testing.B) {
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doBench(b, true, false)
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}
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