Knowledge base:
ByteBlower GUI 2.12
Posted by Mathieu Strubbe, Last modified by Craig Godbold on 17 August 2023 10:20 AM

Introducing Cumulative Latency Distribution Graphs

The ByteBlower GUI reports now contain CDF and CCDF latency graphs:

100 Gbit testing

The new ByteBlower 5100 model is specially designed to allow fast and easy testing on high-speed,
100 Gbit ethernet networks. It provides best-in-class latency measurements and 100 Gbit performance.

ByteBlower 5100


You can download this version of the GUI here: Download GUI

Information on how to use the CLT version of the GUI: Introduction to ByteBlower CLT

Changelog 2.12.4

This a bugfix release based on feedback received at All feedback is welcome.

Bug fixes

  • Comparing the cumulative TCP results to the results over time showed that the first data-point was sometimes missing. In the graphical reports this made a minor difference in the startup phase of the charts.
  • CSV reports now also list the cumulative TCP throughput for traffic transmitted by the Wireless Endpoints. The other direction was already calculated.
  • A fix in the the JSON reports: the current round trip time in the results over time of the TCP element now has the correct value.

Changelog 2.12.2

New features

  • [Reporting] Additional CDF and CCDF reporting. This is the main feature of this release.


  • [General] Updated TCP options in the TCP view.
    • The default congestion algorithm is now Sack + Cubic, similar to most modern Operating Systems.
    • Window scale values now range up to 12. The default value stays at 7, which is a commonly used one.
  • [General] Latency Distributions have been renamed to Latency Histograms.

Bug fixes

  • [General] To save time, NAT Discovery now skips flows where the source or destination failed to configure. These discoveries would fail either way but would require a long time to do so.
  • [Reporting] The TCP roundtrip element in the JSON report has now the correct value.

Changelog 2.12.0


  • [General] The GUI can now also control the new 100G ByteBlower 5100 server.
  • [Reporting] Improved JSON reports. Snapshots are ordered now.
  • [Reporting] Using milliseconds by default for latencies.
  • [Reporting] Using Mbps by default for throughputs.
  • [Reporting] Additional logging in the report browser. This will help debugging.
  • [Reporting] Less memory usage while generating JSON reports, by using a streaming approach.
  • [Reporting] Opening a report automatically after a scenario finished, but only when there are test results.
  • [UI] Showing help when relaunching a scenario that became invalid. Also opening the Solution View now.

Bug fixes

  • [General]: Adding a frame size filter for 60 byte frames also. This makes the filter more selective and avoids counting other large sized frames.

Known issues

  • [General]: The GUI is not yet fully compatible with macOS 11 Big Sur. Contact us to get a development version.

(0 vote(s))
Not helpful

Comments (0)

We to help you!