mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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62 lines
2.0 KiB
Go
62 lines
2.0 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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 benchmark
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import (
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"fmt"
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"testing"
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"time"
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)
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// TestSchedule100Node3KPods schedules 3k pods on 100 nodes.
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func TestSchedule100Node3KPods(t *testing.T) {
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schedulePods(100, 3000)
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}
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// TestSchedule1000Node30KPods schedules 30k pods on 1000 nodes.
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func TestSchedule1000Node30KPods(t *testing.T) {
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schedulePods(1000, 30000)
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}
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// schedulePods schedules specific number of pods on specific number of nodes.
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// This is used to learn the scheduling throughput on various
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// sizes of cluster and changes as more and more pods are scheduled.
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// It won't stop until all pods are scheduled.
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func schedulePods(numNodes, numPods int) {
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schedulerConfigFactory, destroyFunc := mustSetupScheduler()
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defer destroyFunc()
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c := schedulerConfigFactory.Client
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makeNodes(c, numNodes)
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makePodsFromRC(c, "rc1", numPods)
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prev := 0
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start := time.Now()
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for {
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// This can potentially affect performance of scheduler, since List() is done under mutex.
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// Listing 10000 pods is an expensive operation, so running it frequently may impact scheduler.
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// TODO: Setup watch on apiserver and wait until all pods scheduled.
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scheduled := schedulerConfigFactory.ScheduledPodLister.Indexer.List()
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fmt.Printf("%ds\trate: %d\ttotal: %d\n", time.Since(start)/time.Second, len(scheduled)-prev, len(scheduled))
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if len(scheduled) >= numPods {
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return
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}
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prev = len(scheduled)
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time.Sleep(1 * time.Second)
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}
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}
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