TraceMetrics was developed as an accessible Java-based trace file analyzer for ns-3 (Network Simulator 3).
The main goal is to perform a quick analysis of the trace file produced by ns-3’s simulations and calculate useful metrics for research and performance measurement.
Such tool is needed because a research simulation may generate a trace file with thousands of lines, becoming difficult to analyze manually.
Due to this, this tool can be handy in case someone needs a metric that the tool already support.
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TraceMetrics Cracked Accounts is a tool to generate a histogram from a trace file.
The histogram can be useful to generate histograms related to the size of the packets and data frames.
On the other hand, TraceMetrics can generate a histogram from the trace file to evaluate the total amount of time used in the simulation.
TraceMetrics can generate an histogram related to the number of frames that took a certain amount of time.
Here are some of the metrics that you can find generated by this tool:
Time and packets histogram.
The histogram generated by TraceMetrics can be used to calculate the average time and the average number of packets used to pass through the simulation.
The histograms are divided in normal (0-60000) and heavy (60000-90000) simulation traces.
The normal simulation traces are very useful to measure the performance of hardware (CPUs or NICs) on the simulation.
The heavy traces are useful to evaluate the performance of a simulation (over loaded simulation).
The added lines added to the Histogram in this page can be used for that purpose:
The histograms can be used as a performance measure without the necessity of a trace file analyzer.
The histogram will show the quality of the simulation for real-time applications.
If a histogram is too wide, there will be more packets/frames being sent.
Such situations may indicate a performance problem, like a lack of CPU/NICs on the simulation.
If the histogram is too narrow, there will be many packets/frames waiting.
Such situations may indicate poor usage of the simulation, like many frames going directly to the transmission queue without even trying to forward them.
Data traffic histogram.
This histogram should be used to measure the amount of data sent/received during the simulation.
When trying to evaluate the performance of a simulation in a real-time application, it is necessary to know how many data frames were sent to simulate, because data frames often exceed what a real-time application can deal with.
The same is true for packet size.
TraceMetrics can generate a histogram related to the data traffic for every frame and for each packet of a frame.
If the histogram is too wide, there will be a lot of data frames sent.
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TraceMetrics has two basic functions. The first one is to read the original trace file produced by a simulation, and analyze it finding interesting metrics. The second one is to compile the metrics into an HTML report which can be then visualized in any Web browser supporting HTML5.
TraceMetrics is developed as a single project to be portable in different Operating systems and to be released as a single executable file.
Currently, it only supports Windows OS as an operating system.
A simulation using TraceMetrics may generate a trace file with thousands of lines.
Therefore, TraceMetrics performs several optimizations in order to make the analysis as fast as possible.
| Windows| Linux| MacOS| Ubuntu|
For Windows, the UI starts with a window where you can select the area to be analyzed.
The original trace file is then read in order to calculate the metric.
You can select the area of interest by dragging the selected area with the mouse.
Once the simulation is over, a summary of the metrics found is displayed.
Several examples of the exported metrics are shown.
The report can be generated starting from the summary or by selecting the metrics found by the simulation.
As in the previous Windows scenario, each row of the HTML report is a one metric found by the simulation.
The HTML report is generated by clicking on “Generate HTML Report” which only take a second to generate.
| Windows| Linux| MacOS| Ubuntu|
The current version of TraceMetrics only supports the analysis of a single trace file.
In order to perform multiple analysis or complex analysis of multiple trace files, there is the need for a new version of TraceMetrics, designed to generate multiple reports at the same time.
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
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The core of the application is written in Java.
A Java applet is used to display trace file metrics.
The main goals are:
1. To be available for as many platforms as possible. The JRE is required for running the Java applet.
2. To do basic graph customization and control.
3. To be configured and also be able to generate reports.
Reports generated are compatible with ReportLab.
Currently 5 reports are implemented but there is room for expanding the number of reports.
Below you can see a screenshot of the main applet.
.. image:: TraceMetrics.png
:widths: 30 70
* – Name
* – “Trace Metrics“
– This applet displays simple metrics gathered from the trace file.
* – “Plot Metrics“
– This applet displays a simple line plot of some of the metrics.
* – “Spread Metrics“
– This applet displays some of the metrics using a heatmap where blue means high value, white means normal and red means low value.
* – “Line Metrics“
– This applet displays some of the metrics through a simple line plot.
* – “Heatmap Metrics“
– This applet displays some of the metrics through a heatmap where blue means high value, white means normal and red means low value.
* – “Bar Metrics“
– This applet displays some of the metrics through a simple bar plot.
* – “Stat Metrics“
– This applet displays some of the metrics using a simple boxplot.
* – “Legend Metrics“
– This applet displays some of the metrics, used to customize the current legend of the applet.
* – “Clear Legend“
– This applet clears the legend.
* – “Update Legend“
– This applet updates
What’s New In TraceMetrics?
The software features four modules:
Trace file viewer
Trace file analyzer
Module 1: Network Simulator:
TraceMetrics is based on the Network Simulator model within ns-3. This module is used to read the trace file generated by the simulation. It is the only module of the software that require the trace file analysis.
The implementation uses a custom set of plugins to read this trace file.
Module 2: Trace File Viewer:
This module is the first step to work with the results of the simulation. It shows the trace file meta information. It also provides a really nice visual representation for the topology and packet traces.
The trace file analyzer and metrics modules are built upon top of this viewer.
Module 3: Trace File Analyzer:
It is a module responsible for the analysis of the trace file and for providing to the user the results of the analysis. It can be used to perform a quick and exhaustive analysis of the trace file and calculate some interesting metrics like packet loss, propagation delay and packet delay.
Module 4: Metrics:
This module is the repository of the metrics calculated by the previous modules. They include in this module the most interesting metrics calculated by the trace file analyzer.
This software is released under the BSD license and comes with no warranty. If you have questions regarding the license, please contact the author.
This file contains a proof of concept of how the trace file analyzer works.
This project has been started in 2010 by Alan Cabrera.
If you have any questions, concerns, requests, or improvements, please contact the author.The vastness of the universe, the number of galaxies, the size of the universe, the history of the universe — all of these facts about the universe keep growing. We keep adding more and more to the list.
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