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Flaky test SamplingPercentageAdjustsAccordingToConstantHighProductionRate #1037

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Description

2018-12-28T22:39:32.2777167Z Starting test execution, please wait...
2018-12-28T22:40:23.4984741Z Failed   Microsoft.ApplicationInsights.WindowsServer.Channel.AdaptiveSamplingTelemetryProcessorTest.SamplingPercentageAdjustsAccordingToConstantHighProductionRate
2018-12-28T22:40:23.4985603Z Error Message:
2018-12-28T22:40:23.4985771Z  Assert.IsTrue failed. 
2018-12-28T22:40:23.4987663Z Stack Trace:
2018-12-28T22:40:23.4988582Z    at Microsoft.ApplicationInsights.WindowsServer.Channel.AdaptiveSamplingTelemetryProcessorTest.SamplingPercentageAdjustsAccordingToConstantHighProductionRate() in /mnt/a/1/s/Test/ServerTelemetryChannel.Test/Shared.Tests/AdaptiveSamplingTelemetryProcessorTest.cs:line 128
2018-12-28T22:40:23.4989225Z 
2018-12-28T22:40:23.4990530Z Standard Output Messages:
2018-12-28T22:40:23.4990780Z  
2018-12-28T22:40:23.4990970Z  
2018-12-28T22:40:23.4991151Z  Debug Trace:
2018-12-28T22:40:23.4992222Z  [Sampling% evaluation] 2018-12-28T22:39:59.4728938+00:00, Eps: 20, Current %: 100, New %: 25, Changed: False
2018-12-28T22:40:23.4992867Z  [Sampling% evaluation] 2018-12-28T22:40:00.4723852+00:00, Eps: 20.5, Current %: 100, New %: 20, Changed: False
2018-12-28T22:40:23.4993395Z  [Sampling% evaluation] 2018-12-28T22:40:01.4727203+00:00, Eps: 20.375, Current %: 100, New %: 20, Changed: True
2018-12-28T22:40:23.4993927Z  [Sampling% evaluation] 2018-12-28T22:40:02.4739779+00:00, Eps: 4, Current %: 20, New %: 25, Changed: False
2018-12-28T22:40:23.4994406Z  [Sampling% evaluation] 2018-12-28T22:40:03.4702612+00:00, Eps: 3.75, Current %: 20, New %: 25, Changed: False
2018-12-28T22:40:23.4994919Z  [Sampling% evaluation] 2018-12-28T22:40:04.4701655+00:00, Eps: 4.3125, Current %: 20, New %: 20, Changed: False
2018-12-28T22:40:23.4995400Z  [Sampling% evaluation] 2018-12-28T22:40:05.4708253+00:00, Eps: 4.734375, Current %: 20, New %: 20, Changed: False
2018-12-28T22:40:23.4995927Z  [Sampling% evaluation] 2018-12-28T22:40:06.4749983+00:00, Eps: 4.55078125, Current %: 20, New %: 20, Changed: False
2018-12-28T22:40:23.4996416Z  [Sampling% evaluation] 2018-12-28T22:40:07.4757375+00:00, Eps: 4.9130859375, Current %: 20, New %: 20, Changed: False
2018-12-28T22:40:23.4996954Z  [Sampling% evaluation] 2018-12-28T22:40:08.4715758+00:00, Eps: 4.434814453125, Current %: 20, New %: 20, Changed: False
2018-12-28T22:40:23.4997771Z  [Sampling% evaluation] 2018-12-28T22:40:09.4718122+00:00, Eps: 3.82611083984375, Current %: 20, New %: 25, Changed: True
2018-12-28T22:40:23.4998604Z  [Sampling% evaluation] 2018-12-28T22:40:10.4719975+00:00, Eps: 1, Current %: 25, New %: 100, Changed: False
2018-12-28T22:40:23.4999198Z  [Sampling% evaluation] 2018-12-28T22:40:11.4754562+00:00, Eps: 1.25, Current %: 25, New %: 100, Changed: True
2018-12-28T22:40:23.4999748Z  [Sampling% evaluation] 2018-12-28T22:40:12.4760677+00:00, Eps: 20, Current %: 100, New %: 25, Changed: False
2018-12-28T22:40:23.5000204Z  [Sampling% evaluation] 2018-12-28T22:40:13.4687556+00:00, Eps: 20, Current %: 100, New %: 25, Changed: False
2018-12-28T22:40:23.5000736Z  [Sampling% evaluation] 2018-12-28T22:40:14.4733533+00:00, Eps: 20, Current %: 100, New %: 25, Changed: True
2018-12-28T22:40:23.5001716Z  [Sampling% evaluation] 2018-12-28T22:40:15.4698518+00:00, Eps: 7, Current %: 25, New %: 16.6666666666667, Changed: False
2018-12-28T22:40:23.5002287Z  [Sampling% evaluation] 2018-12-28T22:40:16.4694474+00:00, Eps: 6, Current %: 25, New %: 20, Changed: False
2018-12-28T22:40:23.5002762Z  [Sampling% evaluation] 2018-12-28T22:40:17.4740224+00:00, Eps: 7, Current %: 25, New %: 16.6666666666667, Changed: True
2018-12-28T22:40:23.5003310Z  [Sampling% evaluation] 2018-12-28T22:40:18.4702060+00:00, Eps: 6, Current %: 16.6666666666667, New %: 12.5, Changed: False
2018-12-28T22:40:23.5003797Z  [Sampling% evaluation] 2018-12-28T22:40:19.4708565+00:00, Eps: 5, Current %: 16.6666666666667, New %: 16.6666666666667, Changed: False
2018-12-28T22:40:23.5004364Z  [Sampling% evaluation] 2018-12-28T22:40:20.4709985+00:00, Eps: 4.5, Current %: 16.6666666666667, New %: 16.6666666666667, Changed: False
2018-12-28T22:40:23.5004852Z  [Sampling% evaluation] 2018-12-28T22:40:21.4702893+00:00, Eps: 4.375, Current %: 16.6666666666667, New %: 16.6666666666667, Changed: False
2018-12-28T22:40:23.5005423Z  [Sampling% evaluation] 2018-12-28T22:40:22.4703054+00:00, Eps: 4.03125, Current %: 16.6666666666667, New %: 20, Changed: True
2018-12-28T22:40:23.5005872Z  [Sampling% evaluation] 2018-12-28T22:40:23.4702887+00:00, Eps: 4, Current %: 20, New %: 25, Changed: False
2018-12-28T22:40:23.5006317Z  'Ideal' telemetry item count: 125
2018-12-28T22:40:23.5006481Z  Expected range: from 63 to 187
2018-12-28T22:40:23.5006673Z  Actual telemetry item count: 201 (160.8% of ideal)
2018-12-28T22:40:23.5006781Z 

target: netstandard 2.0
https://dev.azure.com/mseng/AppInsights/_build/results?buildId=8087032

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