Software Alternatives, Accelerators & Startups

iperf VS clumsy

Compare iperf VS clumsy and see what are their differences

iperf logo iperf

A TCP, UDP, and SCTP network bandwidth measurement tool

clumsy logo clumsy

clumsy makes your network condition on Windows significantly worse, but in a managed and...
  • iperf Landing page
    Landing page //
    2023-09-17
  • clumsy Landing page
    Landing page //
    2022-01-17

iperf videos

Using Iperf to measure network speed / bandwidth

More videos:

  • Tutorial - How to use iperf to test local network LAN speed in Windows 10
  • Review - [HOWTO] Test My Network Speed?! [iPerf & JPerf]

clumsy videos

Clumsy Thief Review - with Tom Vasel

More videos:

  • Review - Is it normal to be clumsy during pregnancy? | Clumsiness during pregnancy
  • Review - Clumsy Thief | Homeschool Resource Review | Intrinsic

Category Popularity

0-100% (relative to iperf and clumsy)
Monitoring Tools
89 89%
11% 11
Log Management
100 100%
0% 0
Security & Privacy
0 0%
100% 100
Network & Admin
100 100%
0% 0

User comments

Share your experience with using iperf and clumsy. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, clumsy should be more popular than iperf. It has been mentiond 7 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

iperf mentions (4)

  • Microsoft: Don't Use Iperf3 on Windows
    Just some clarification: IPerf 2 is different from the iperf3 found at https://github.com/esnet/iperf. - Source: Hacker News / 2 months ago
  • Yet Another Bench Script (YABS): evaluate Linux server performance with this simple Bash script and utility
    Network - network throughput (both incoming and outgoing) is tested using iperf3 on several geographically diverse public iperf servers. Source: almost 2 years ago
  • Speed testing Visible with a modem
    File transfer using iperf3 over Tailscale. I noticed that the bandwidth to my home computer (on a 500/500 fiber connection) was higher than with speedtest.net. For the first few days I was getting downloads and uploads of 28Mbps (+/- std dev of 6Mbps) and 150ms latency (+/- 35ms). After somewhere around 100GB total transfer (maybe half of that over Tailscale), it is now downloading and uploading at 10Mbps (+/-... Source: over 2 years ago
  • FTP upload speed isn't great
    I can add to this. I have two mini self contained projects to create multiarch static bins of mtr and iperf3 for general usage. Source: about 3 years ago

clumsy mentions (7)

  • how do i simulate clients with high ping?
    I have used little program called clumsy: https://jagt.github.io/clumsy/index.html. Source: about 1 year ago
  • wireguard vs tailscale for latency
    You could install 100ms of lag using a tool like clumsy to test it out: https://jagt.github.io/clumsy/index.html. Source: over 1 year ago
  • Is there (I suspect not, could there easily be) a way to spoof some additional latency, in order to have a fair match with normally uneven pings
    I Google for „how to emulate network latency” and found this on Stack Overflow. Source: over 1 year ago
  • Performance testing with slow connection and packet loss
    But for real tho. You could try clumsy Https://jagt.github.io/clumsy/index.html. Source: almost 2 years ago
  • ER-X: Can I artificially increase my ping (latency)?
    Clumsy might do what you need. It won't throttle your bandwidth, but you can add latency to simulate a long distance connection. Source: over 2 years ago
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What are some alternatives?

When comparing iperf and clumsy, you can also consider the following products

JPerf - This project gives a better UI and new functionalities to the initial JPerf 1.

Npcap - Npcap is the Nmap Project's packet sniffing library for Windows.

Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.

WinPcap - Industry-standard tool for link-layer network access in Windows.

mtr - mtr combines the functionality of the 'traceroute' and 'ping' programs in a single...

Win10Pcap - Win10Pcap is a WinPcap-based Ethernet packet capture library.