Content Types

Tests publishing information using either XML, JSON or binary over MQTT, to see if there are any noticeable differences on the choice of content type on performance.

This report has been automatically generated by ComSim by Trust Anchor Group. The following command-line arguments where used to execute the simulation and generate the report:

ComSim.exe -d ComSim\bin\Debug\netcoreapp2.2\Data -e -i Examples\ContentType.xml -s ComSim\bin\Debug\netcoreapp2.2\Sniffers -st Examples\SnifferXmlToHtml.xslt -mr C:\ProgramData\IoT Gateway\Root\Reports\ContentType.md -xr C:\ProgramData\IoT Gateway\Root\Reports\ContentType.xml -master /Master.md -l C:\ProgramData\IoT Gateway\Root\Reports\ContentType.Log.xml -lt C:\ProgramData\IoT Gateway\Transforms\EventXmlToHtml.xslt -af ComSim\bin\Release\netcoreapp2.2\publish

Description

Simulates 300 MQTT clients, publishing and subscribing to content of different types (100 XML, 100 JSON, 100 binary) during 10 minutes, during which a million messages of each type is transmitted and received. During the simulation, performance metrics are sampled for local simulator performance and broker performance.

Preparation

MQTT

The MQTT protocol is tested by installing the mosquitto MQTT broker on the same machine as the XMPP broker. It is important the brokers reside on the same machine, so network performance metrics can be compared.

Performance Counters

For this simulation to work, the Performance.ws Web Service script available in the Examples folder in the ComSim project, needs to be copied to the /Reports web folder of the TAG Neuron or the IoT Gateway web server. For readability, the web service script contais the following script, executed when the resource is accessed:

{
    "cpuPercent":PerformanceCounters.GetCounter("Processor","_Total","% Processor Time").NextValue(),
    "networkBytesPerSec":PerformanceCounters.GetCounter("Network Interface","Microsoft Hyper-V Network Adapter","Bytes Total/sec").NextValue(),
    "memoryMBytesFree":PerformanceCounters.GetCounter("Memory","Available MBytes").NextValue()
}

General

Time units
Simulation Duration:	1 min
Time Base:	Start of Simulation
Time Unit:	1 s
Time Cycle:	10 min
Bucket Time:	1 s
Start Date:	2020-10-13
Start Time:	13:21:01
End Date:	2020-10-13
End Time:	13:22:01

Activities

ReadPerformanceCounters

This activity measures server performance, by calling a web service and reporting the measured values in the returning JSON object back to the simulator.