| Flowgrind | |
| Developer: | The Flowgrind team |
| Latest Release Version: | 0.8.0 |
| Operating System: | Linux, FreeBSD, OS X |
| Programming Language: | C |
| Genre: | Bandwidth management |
| License: | GPL3 |
| Website: | https://flowgrind.github.io/ |
Flowgrind is a testing and benchmarking tool to measure throughput and other metrics for TCP.It was originally developed to study performance and behavior of TCP variants within Wireless mesh networks.[1]
In contrast to similar tools like Iperf or Netperf it features a distributed architecture, where throughput and othermetrics are measured between flowgrind server processes. The Flowgrind client hasthe purpose to schedule such measurements and collect the measurement data.
Inherent with this architecture and its designation for Wireless mesh networks flowgrind supports:
Flowgrind allows the user to set various protocol parameters (e.g. the Congestion control algorithm) individually for each connection. This can be used to explore how certain settings affect network utilization and how they may compete which each other.
Unlike most cross-platform testing tools, besides application layermetrics, Flowgrind can output some transport layer metrics, which areusually internal to the TCP/IP Stack. For example, on Linux this includesthe kernel's estimation of the end-to-end round-triptime and the size of the congestion window.