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Minor fixes
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3c31efe32f
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@ -163,13 +163,8 @@ func intervalMetricAvg(snapshot0, snapshot1 metricSnapshot, plLabel string) plMe
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// This test differs from TestPriorityLevelIsolation since TestPriorityLevelIsolation checks throughput instead
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// of concurrency. In order to mitigate the effects of system noise, authorization webhook is used to artificially
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// increase request execution time to make the system noise relatively insignificant.
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//
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// Secondarily, this test also checks the observed seat utilizations against values derived from expecting that
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// the throughput observed by the client equals the execution throughput observed by the server.
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//
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// This test recognizes that there is noise in the measurements coming from uncontrolled overheads
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// and unsynchronized reading of related quantities. This test takes as a relative error margin 2 times
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// the smaller (of the two traffic classes) coefficient of variation of the client-observed latency.
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func TestConcurrencyIsolation(t *testing.T) {
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, genericfeatures.APIPriorityAndFairness, true)()
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// NOTE: disabling the feature should fail the test
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@ -315,8 +310,9 @@ func TestConcurrencyIsolation(t *testing.T) {
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t.Logf("Error margin is %v", margin)
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isConcurrencyExpected := func(name string, observed float64, expected float64) bool {
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t.Logf("%v relative error is %v", name, math.Abs(expected-observed)/expected)
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return math.Abs(expected-observed)/expected <= margin
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relativeErr := math.Abs(expected-observed) / expected
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t.Logf("%v relative error is %v", name, relativeErr)
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return relativeErr <= margin
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}
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if !isConcurrencyExpected(plNoxu1.Name, noxu1ObservedConcurrency, noxu1ExpectedConcurrency) {
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t.Errorf("Concurrency observed by noxu1 is off. Expected: %v, observed: %v", noxu1ExpectedConcurrency, noxu1ObservedConcurrency)
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