425 lines
18 KiB
C#
425 lines
18 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using Nini.Config;
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using NUnit.Framework;
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using OpenMetaverse.Packets;
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using OpenSim.Framework;
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using OpenSim.Region.Framework.Scenes;
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using OpenSim.Tests.Common;
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namespace OpenSim.Region.ClientStack.LindenUDP.Tests
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{
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[TestFixture]
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public class ThrottleTests : OpenSimTestCase
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{
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[TestFixtureSetUp]
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public void FixtureInit()
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{
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// Don't allow tests to be bamboozled by asynchronous events. Execute everything on the same thread.
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Util.FireAndForgetMethod = FireAndForgetMethod.RegressionTest;
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}
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[TestFixtureTearDown]
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public void TearDown()
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{
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// We must set this back afterwards, otherwise later tests will fail since they're expecting multiple
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// threads. Possibly, later tests should be rewritten so none of them require async stuff (which regression
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// tests really shouldn't).
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Util.FireAndForgetMethod = Util.DefaultFireAndForgetMethod;
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}
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[Test]
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public void TestSetRequestDripRate()
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{
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TestHelpers.InMethod();
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TokenBucket tb = new TokenBucket("tb", null, 5000, 0);
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AssertRates(tb, 5000, 0, 5000, 0);
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tb.RequestedDripRate = 4000;
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AssertRates(tb, 4000, 0, 4000, 0);
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tb.RequestedDripRate = 6000;
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AssertRates(tb, 6000, 0, 6000, 0);
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}
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[Test]
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public void TestSetRequestDripRateWithMax()
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{
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TestHelpers.InMethod();
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TokenBucket tb = new TokenBucket("tb", null, 5000, 10000);
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AssertRates(tb, 5000, 0, 5000, 10000);
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tb.RequestedDripRate = 4000;
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AssertRates(tb, 4000, 0, 4000, 10000);
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tb.RequestedDripRate = 6000;
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AssertRates(tb, 6000, 0, 6000, 10000);
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tb.RequestedDripRate = 12000;
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AssertRates(tb, 10000, 0, 10000, 10000);
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}
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[Test]
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public void TestSetRequestDripRateWithChildren()
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{
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TestHelpers.InMethod();
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TokenBucket tbParent = new TokenBucket("tbParent", null, 0, 0);
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TokenBucket tbChild1 = new TokenBucket("tbChild1", tbParent, 3000, 0);
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TokenBucket tbChild2 = new TokenBucket("tbChild2", tbParent, 5000, 0);
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AssertRates(tbParent, 8000, 8000, 8000, 0);
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AssertRates(tbChild1, 3000, 0, 3000, 0);
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AssertRates(tbChild2, 5000, 0, 5000, 0);
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// Test: Setting a parent request greater than total children requests.
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tbParent.RequestedDripRate = 10000;
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AssertRates(tbParent, 10000, 8000, 8000, 0);
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AssertRates(tbChild1, 3000, 0, 3000, 0);
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AssertRates(tbChild2, 5000, 0, 5000, 0);
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// Test: Setting a parent request lower than total children requests.
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tbParent.RequestedDripRate = 6000;
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AssertRates(tbParent, 6000, 8000, 6000, 0);
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AssertRates(tbChild1, 3000, 0, 6000 / 8 * 3, 0);
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AssertRates(tbChild2, 5000, 0, 6000 / 8 * 5, 0);
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}
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private void AssertRates(
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TokenBucket tb, double requestedDripRate, double totalDripRequest, double dripRate, double maxDripRate)
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{
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Assert.AreEqual((int)requestedDripRate, tb.RequestedDripRate, "Requested drip rate");
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Assert.AreEqual((int)totalDripRequest, tb.TotalDripRequest, "Total drip request");
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Assert.AreEqual((int)dripRate, tb.DripRate, "Drip rate");
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Assert.AreEqual((int)maxDripRate, tb.MaxDripRate, "Max drip rate");
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}
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[Test]
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public void TestClientThrottleSetNoLimit()
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{
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TestHelpers.InMethod();
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// TestHelpers.EnableLogging();
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Scene scene = new SceneHelpers().SetupScene();
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TestLLUDPServer udpServer = ClientStackHelpers.AddUdpServer(scene);
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ScenePresence sp
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= ClientStackHelpers.AddChildClient(
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scene, udpServer, TestHelpers.ParseTail(0x1), TestHelpers.ParseTail(0x2), 123456);
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LLUDPClient udpClient = ((LLClientView)sp.ControllingClient).UDPClient;
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udpServer.Throttle.DebugLevel = 1;
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udpClient.ThrottleDebugLevel = 1;
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int resendBytes = 1000;
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int landBytes = 2000;
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int windBytes = 3000;
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int cloudBytes = 4000;
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int taskBytes = 5000;
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int textureBytes = 6000;
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int assetBytes = 7000;
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SetThrottles(
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udpClient, resendBytes, landBytes, windBytes, cloudBytes, taskBytes, textureBytes, assetBytes);
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// We expect this to be lower because of the minimum bound set by MTU
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int totalBytes = LLUDPServer.MTU + landBytes + windBytes + cloudBytes + taskBytes + textureBytes + assetBytes;
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AssertThrottles(
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udpClient,
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LLUDPServer.MTU, landBytes, windBytes, cloudBytes, taskBytes,
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textureBytes, assetBytes, totalBytes, 0, 0);
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}
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[Test]
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public void TestClientThrottleAdaptiveNoLimit()
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{
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TestHelpers.InMethod();
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// TestHelpers.EnableLogging();
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Scene scene = new SceneHelpers().SetupScene();
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IniConfigSource ics = new IniConfigSource();
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IConfig config = ics.AddConfig("ClientStack.LindenUDP");
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config.Set("enable_adaptive_throttles", true);
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TestLLUDPServer udpServer = ClientStackHelpers.AddUdpServer(scene, ics);
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ScenePresence sp
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= ClientStackHelpers.AddChildClient(
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scene, udpServer, TestHelpers.ParseTail(0x1), TestHelpers.ParseTail(0x2), 123456);
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LLUDPClient udpClient = ((LLClientView)sp.ControllingClient).UDPClient;
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udpServer.Throttle.DebugLevel = 1;
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udpClient.ThrottleDebugLevel = 1;
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// Total is 280000
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int resendBytes = 10000;
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int landBytes = 20000;
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int windBytes = 30000;
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int cloudBytes = 40000;
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int taskBytes = 50000;
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int textureBytes = 60000;
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int assetBytes = 70000;
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int totalBytes = resendBytes + landBytes + windBytes + cloudBytes + taskBytes + textureBytes + assetBytes;
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SetThrottles(
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udpClient, resendBytes, landBytes, windBytes, cloudBytes, taskBytes, textureBytes, assetBytes);
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// Ratio of current adaptive drip rate to requested bytes
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// XXX: Should hard code this as below so we don't rely on values given by tested code to construct
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// expected values.
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double commitRatio = (double)udpClient.FlowThrottle.AdjustedDripRate / udpClient.FlowThrottle.TargetDripRate;
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AssertThrottles(
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udpClient,
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LLUDPServer.MTU, landBytes * commitRatio, windBytes * commitRatio, cloudBytes * commitRatio, taskBytes * commitRatio,
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textureBytes * commitRatio, assetBytes * commitRatio, udpClient.FlowThrottle.AdjustedDripRate, totalBytes, 0);
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// Test an increase in target throttle
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udpClient.FlowThrottle.AcknowledgePackets(35000);
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commitRatio = 0.2;
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AssertThrottles(
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udpClient,
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resendBytes * commitRatio, landBytes * commitRatio, windBytes * commitRatio, cloudBytes * commitRatio, taskBytes * commitRatio,
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textureBytes * commitRatio, assetBytes * commitRatio, udpClient.FlowThrottle.AdjustedDripRate, totalBytes, 0);
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// Test a decrease in target throttle
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udpClient.FlowThrottle.ExpirePackets(1);
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commitRatio = 0.1;
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AssertThrottles(
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udpClient,
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LLUDPServer.MTU, landBytes * commitRatio, windBytes * commitRatio, cloudBytes * commitRatio, taskBytes * commitRatio,
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textureBytes * commitRatio, assetBytes * commitRatio, udpClient.FlowThrottle.AdjustedDripRate, totalBytes, 0);
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}
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/// <summary>
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/// Test throttle setttings where max client throttle has been limited server side.
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/// </summary>
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[Test]
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public void TestSingleClientThrottleRegionLimited()
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{
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TestHelpers.InMethod();
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// TestHelpers.EnableLogging();
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int resendBytes = 6000;
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int landBytes = 8000;
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int windBytes = 10000;
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int cloudBytes = 12000;
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int taskBytes = 14000;
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int textureBytes = 16000;
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int assetBytes = 18000;
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int totalBytes
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= (int)((resendBytes + landBytes + windBytes + cloudBytes + taskBytes + textureBytes + assetBytes) / 2);
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Scene scene = new SceneHelpers().SetupScene();
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TestLLUDPServer udpServer = ClientStackHelpers.AddUdpServer(scene);
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udpServer.Throttle.RequestedDripRate = totalBytes;
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ScenePresence sp1
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= ClientStackHelpers.AddChildClient(
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scene, udpServer, TestHelpers.ParseTail(0x1), TestHelpers.ParseTail(0x2), 123456);
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LLUDPClient udpClient1 = ((LLClientView)sp1.ControllingClient).UDPClient;
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SetThrottles(
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udpClient1, resendBytes, landBytes, windBytes, cloudBytes, taskBytes, textureBytes, assetBytes);
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AssertThrottles(
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udpClient1,
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resendBytes / 2, landBytes / 2, windBytes / 2, cloudBytes / 2, taskBytes / 2,
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textureBytes / 2, assetBytes / 2, totalBytes, 0, 0);
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// Test: Now add another client
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ScenePresence sp2
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= ClientStackHelpers.AddChildClient(
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scene, udpServer, TestHelpers.ParseTail(0x10), TestHelpers.ParseTail(0x20), 123457);
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LLUDPClient udpClient2 = ((LLClientView)sp2.ControllingClient).UDPClient;
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// udpClient.ThrottleDebugLevel = 1;
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SetThrottles(
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udpClient2, resendBytes, landBytes, windBytes, cloudBytes, taskBytes, textureBytes, assetBytes);
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AssertThrottles(
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udpClient1,
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resendBytes / 4, landBytes / 4, windBytes / 4, cloudBytes / 4, taskBytes / 4,
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textureBytes / 4, assetBytes / 4, totalBytes / 2, 0, 0);
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AssertThrottles(
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udpClient2,
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resendBytes / 4, landBytes / 4, windBytes / 4, cloudBytes / 4, taskBytes / 4,
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textureBytes / 4, assetBytes / 4, totalBytes / 2, 0, 0);
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}
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/// <summary>
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/// Test throttle setttings where max client throttle has been limited server side.
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/// </summary>
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[Test]
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public void TestClientThrottlePerClientLimited()
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{
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TestHelpers.InMethod();
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// TestHelpers.EnableLogging();
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int resendBytes = 4000;
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int landBytes = 6000;
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int windBytes = 8000;
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int cloudBytes = 10000;
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int taskBytes = 12000;
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int textureBytes = 14000;
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int assetBytes = 16000;
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int totalBytes
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= (int)((resendBytes + landBytes + windBytes + cloudBytes + taskBytes + textureBytes + assetBytes) / 2);
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Scene scene = new SceneHelpers().SetupScene();
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TestLLUDPServer udpServer = ClientStackHelpers.AddUdpServer(scene);
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udpServer.ThrottleRates.Total = totalBytes;
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ScenePresence sp
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= ClientStackHelpers.AddChildClient(
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scene, udpServer, TestHelpers.ParseTail(0x1), TestHelpers.ParseTail(0x2), 123456);
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LLUDPClient udpClient = ((LLClientView)sp.ControllingClient).UDPClient;
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// udpClient.ThrottleDebugLevel = 1;
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SetThrottles(
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udpClient, resendBytes, landBytes, windBytes, cloudBytes, taskBytes, textureBytes, assetBytes);
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AssertThrottles(
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udpClient,
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resendBytes / 2, landBytes / 2, windBytes / 2, cloudBytes / 2, taskBytes / 2,
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textureBytes / 2, assetBytes / 2, totalBytes, 0, totalBytes);
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}
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[Test]
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public void TestClientThrottlePerClientAndRegionLimited()
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{
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TestHelpers.InMethod();
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//TestHelpers.EnableLogging();
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int resendBytes = 4000;
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int landBytes = 6000;
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int windBytes = 8000;
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int cloudBytes = 10000;
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int taskBytes = 12000;
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int textureBytes = 14000;
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int assetBytes = 16000;
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// current total 70000
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int totalBytes = resendBytes + landBytes + windBytes + cloudBytes + taskBytes + textureBytes + assetBytes;
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Scene scene = new SceneHelpers().SetupScene();
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TestLLUDPServer udpServer = ClientStackHelpers.AddUdpServer(scene);
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udpServer.ThrottleRates.Total = (int)(totalBytes * 1.1);
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udpServer.Throttle.RequestedDripRate = (int)(totalBytes * 1.5);
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ScenePresence sp1
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= ClientStackHelpers.AddChildClient(
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scene, udpServer, TestHelpers.ParseTail(0x1), TestHelpers.ParseTail(0x2), 123456);
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LLUDPClient udpClient1 = ((LLClientView)sp1.ControllingClient).UDPClient;
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udpClient1.ThrottleDebugLevel = 1;
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SetThrottles(
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udpClient1, resendBytes, landBytes, windBytes, cloudBytes, taskBytes, textureBytes, assetBytes);
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AssertThrottles(
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udpClient1,
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resendBytes, landBytes, windBytes, cloudBytes, taskBytes,
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textureBytes, assetBytes, totalBytes, 0, totalBytes * 1.1);
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// Now add another client
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ScenePresence sp2
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= ClientStackHelpers.AddChildClient(
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scene, udpServer, TestHelpers.ParseTail(0x10), TestHelpers.ParseTail(0x20), 123457);
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LLUDPClient udpClient2 = ((LLClientView)sp2.ControllingClient).UDPClient;
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udpClient2.ThrottleDebugLevel = 1;
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SetThrottles(
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udpClient2, resendBytes, landBytes, windBytes, cloudBytes, taskBytes, textureBytes, assetBytes);
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AssertThrottles(
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udpClient1,
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resendBytes * 0.75, landBytes * 0.75, windBytes * 0.75, cloudBytes * 0.75, taskBytes * 0.75,
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textureBytes * 0.75, assetBytes * 0.75, totalBytes * 0.75, 0, totalBytes * 1.1);
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AssertThrottles(
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udpClient2,
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resendBytes * 0.75, landBytes * 0.75, windBytes * 0.75, cloudBytes * 0.75, taskBytes * 0.75,
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textureBytes * 0.75, assetBytes * 0.75, totalBytes * 0.75, 0, totalBytes * 1.1);
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}
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private void AssertThrottles(
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LLUDPClient udpClient,
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double resendBytes, double landBytes, double windBytes, double cloudBytes, double taskBytes, double textureBytes, double assetBytes,
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double totalBytes, double targetBytes, double maxBytes)
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{
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ClientInfo ci = udpClient.GetClientInfo();
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// Console.WriteLine(
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// "Resend={0}, Land={1}, Wind={2}, Cloud={3}, Task={4}, Texture={5}, Asset={6}, TOTAL = {7}",
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// ci.resendThrottle, ci.landThrottle, ci.windThrottle, ci.cloudThrottle, ci.taskThrottle, ci.textureThrottle, ci.assetThrottle, ci.totalThrottle);
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Assert.AreEqual((int)resendBytes, ci.resendThrottle, "Resend");
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Assert.AreEqual((int)landBytes, ci.landThrottle, "Land");
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Assert.AreEqual((int)windBytes, ci.windThrottle, "Wind");
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Assert.AreEqual((int)cloudBytes, ci.cloudThrottle, "Cloud");
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Assert.AreEqual((int)taskBytes, ci.taskThrottle, "Task");
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Assert.AreEqual((int)textureBytes, ci.textureThrottle, "Texture");
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Assert.AreEqual((int)assetBytes, ci.assetThrottle, "Asset");
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Assert.AreEqual((int)totalBytes, ci.totalThrottle, "Total");
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Assert.AreEqual((int)targetBytes, ci.targetThrottle, "Target");
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Assert.AreEqual((int)maxBytes, ci.maxThrottle, "Max");
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}
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private void SetThrottles(
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LLUDPClient udpClient, int resendBytes, int landBytes, int windBytes, int cloudBytes, int taskBytes, int textureBytes, int assetBytes)
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{
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byte[] throttles = new byte[28];
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Array.Copy(BitConverter.GetBytes((float)resendBytes * 8), 0, throttles, 0, 4);
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Array.Copy(BitConverter.GetBytes((float)landBytes * 8), 0, throttles, 4, 4);
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Array.Copy(BitConverter.GetBytes((float)windBytes * 8), 0, throttles, 8, 4);
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Array.Copy(BitConverter.GetBytes((float)cloudBytes * 8), 0, throttles, 12, 4);
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Array.Copy(BitConverter.GetBytes((float)taskBytes * 8), 0, throttles, 16, 4);
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Array.Copy(BitConverter.GetBytes((float)textureBytes * 8), 0, throttles, 20, 4);
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Array.Copy(BitConverter.GetBytes((float)assetBytes * 8), 0, throttles, 24, 4);
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udpClient.SetThrottles(throttles);
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}
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}
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} |