Performance testing issue

Question

I am trying to use LoadGen.
Message flow is, I receive a message from WCF service (Schemas exposed as WCF service) and published message should go the send port based on filter. It’s a simple messaging based process.
When I run the LoadGen with a send port configuration for the wrong folder location. I can see 100s of message getting suspended. So this proves, my LoadGen configuration is working.
But when I set the send port configuration to correct folder, I can only see 10 files in the send port folder location. My loadgen configuration is processing only 10 files in a block. Also when I check the number of running instances, there are only 10
isolated adapters in process. I suspect that some process block the number of running instances (becoase when the send port had work folder location, it published 100s of messages to message box). Even when I increase the various setting in LoadGen config,
I always get files in 10 numbers.
Am I missing some setting in BizTalk level which doesn’t block the number of messages posed by LoadGen. Here is loadgen setting:
<LoadGenFramework>
<CommonSection>
<LoadGenVersion>2</LoadGenVersion>
<SleepInterval>20</SleepInterval>
<OptimizeLimitFileSize>204800</OptimizeLimitFileSize>
<NumThreadsPerSection>5</NumThreadsPerSection>
<RetryInterval>1000</RetryInterval>
<StopMode Mode="Time">
<TotalTime>300</TotalTime>
</StopMode>
</CommonSection>
<Section Name="LoadGen2007WcfTest">
<Transport Name="LoadGen2007WcfTest">
<Assembly>WcfTransport.dll/WcfTransport.WcfTransport</Assembly>
</Transport>
<!--<SrcFilePath>C:\SampleFiles\VehicleRequest_TH.xml</SrcFilePath>-->
<SrcFilePath>C:\SampleFiles\LoginRequest_TH.xml</SrcFilePath>
<LotSizePerInterval>20</LotSizePerInterval>
<DstLocation>
<Parameters>
<ClientType>WcfTwoWays</ClientType>
<Transactional>False</Transactional>
<ClientEndPointName>LoadGen2007WcfTestPOProcessEndpoint</ClientEndPointName>
<IsSynchronous>False</IsSynchronous>
<MessageAutoGenerate>False</MessageAutoGenerate>
<LogReqMessage>True</LogReqMessage>
<LogRespMessage>True</LogRespMessage>
</Parameters>
</DstLocation>
<!--<MessageCreator Mode="Asynchronous">
<SleepInterval>2000</SleepInterval>
<QueueLength>1000</QueueLength>
<Assembly>CustomMC.dll/CustomMC.CustomMC</Assembly>
<TemplateFilePath>C:\Program Files\LoadGen\Bins\LoadGen2007WcfTestMessageCreator.xml</TemplateFilePath>
</MessageCreator>-->
</Section>
</LoadGenFramework>
<?xml version="1.0" ?>
<configuration>
<system.serviceModel>
<client>
<endpoint name="LoadGen2007WcfTestPOProcessEndpoint"
address="http://localhost/MYService_THValidateUser/MyService.svc"
binding="basicHttpBinding"
bindingConfiguration="LoadGen2007WcfTestBranchAppTHBinding"
contract="WcfTransport.IChannelAsyncNonTransactional"/>
</client>
<bindings>
<basicHttpBinding>
<binding name="LoadGen2007WcfTestTHBinding"
openTimeout="23:59:59" receiveTimeout="23:59:59" closeTimeout="23:59:59" sendTimeout="23:59:59">
<security mode="None">
</security>
</binding>
</basicHttpBinding>
</bindings>
</system.serviceModel>
<system.net>
<defaultProxy>
<proxy autoDetect="false"/>
</defaultProxy>
<connectionManagement>
<add address = "*" maxconnection = "40000000" />
</connectionManagement>
</system.net>
<system.diagnostics>
<trace autoflush="true" indentsize="4">
<listeners>
<add name="LogConsoleListener" type="System.Diagnostics.ConsoleTraceListener"/>
</listeners>
</trace>
</system.diagnostics>
</configuration>

Answer 1

When I see your config, its for twoway WCF..
<ClientType>WcfTwoWays</ClientType>
When you send the messages to the wrong folder location, you see 100s of message. Because to the receive location's response port NCAK would have been delivered. So the response port of the two-way receive location gets messages which ends the process/thread
which trigged it in LoadGen. So when you send a message to a correct folder folder, if you don't send the response back, this blocks the new process/threads to be created, hence you get limited number of messages posted where no ACK/NACK/response messages
are send back. Its because of your WCFTwoWays config,
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