iperf
fio
| iperf | fio | |
|---|---|---|
| 12 | 30 | |
| 6,330 | 4,889 | |
| 1.7% | - | |
| 8.1 | 9.3 | |
| 4 days ago | 4 days ago | |
| C | C | |
| GNU General Public License v3.0 or later | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
iperf
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Microsoft: Don't Use Iperf3 on Windows
Just some clarification: IPerf 2 is different from the iperf3 found at https://github.com/esnet/iperf Each can be used to measure network performance, however, they DO NOT interoperate. They are completely independent implementations with different strengths, different options, and different capabilities. Both are under active development.
The current release of iperf 2 is 2.2.0 but 2.2.1 with bug fixes will be out soon.
Comparison table here: https://iperf2.sourceforge.io/IperfCompare.html
- How can I test my equipment/infrastructure to make sure I'm capable of gigabit Internet speed?
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Gigabit Performance Questions
This discussion from the vendor might lead to other ideas... https://github.com/esnet/iperf/issues/861
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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
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Python vs 100Gbps Network Speed.
Why not just provide an iperf3 server?
- Iperf3: a tcp, udp, and sctp network bandwidth measurement tool
- Direct Play buffering on remote connections
- Weird 21Gb/s limit on 100Gb/s network.
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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 (+/- 1Mbps). I have not seen a similar throttling in the speedtest.net results, which makes me wonder if it is being throttled by Tailscale. This shouldn't be the case, because Tailscale should generally be able to establish a direct connection, but this isn't guaranteed. So I may have hit an edge case.
- What are some ways to test Internet speed other than speed test websites?
fio
- Flexible I/O Tester
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Dire SMB speed with on PC to NAS
Assuming two systems use flash storage, network bandwidth is identical and it is configured the same way, there should be an issue within the PC, either system or storage drive. Check the system logs for errors and warning events related to data transfer from/to NAS. Try to benchmark the PCs' disks using fio to confirm they have similar performance. https://github.com/axboe/fio
- Test Linux I/O
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Ask HN: What are some good resources for learning about low level disk/file IO?
Not specifically addressing your question, but when you get to the point of wanting to start doing some experiments you may find that 'fio' [1] is very handy.
[1] https://github.com/axboe/fio
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KVM virtual machines on ZFS benchmarks
The dd is not a good benchmarking tool, you should use something like fio and probably tune it to use the ioengine most similar to your use case (eg. a database server will probably use some async IO interface). In your first example (with bs=1G) probably something (the guest OS, the qemu/kvm or the host OS) have split into smaller chunks anyway.
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SSD Sequential Write Slowdowns
All linux tests are run with fio 3.32 (github) with future commit 03900b0bf8af625bb43b10f0627b3c5947c3ff79 manually applied.
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Want to develop a GUI wrapper for a CLI tool. Trying to figure out the tools I need.
FIO: https://github.com/axboe/fio
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Just write the f*****g parser.
Agree, I used flex/yacc to add an arithmetic expression evaluator to fio a few years back to allow simple math with some units in fio's job files, and for stuff like that, they're fine, but I wouldn't want to use them for a real language, the error handling is kind of a nightmare.
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Could my SD Card be going bad, or could my Switch be?
Flexible I/O Tester (fio-3.33): https://github.com/axboe/fio
- Newly cloned SSD extremely slow on Linux
What are some alternatives?
mtr - Official repository for mtr, a network diagnostic tool
KDiskMark - A simple open-source disk benchmark tool for Linux distros
speed-test - Test your internet connection speed and ping using speedtest.net from the CLI
open-audit - Tracking and reporting for IT and related assets and configuration
ctsTraffic - ctsTraffic is a highly scalable client/server networking tool giving detailed performance and reliability analytics
rio - pure rust io_uring library, built on libc, thread & async friendly, misuse resistant
iperf3-static - A static build of iperf3 to do network testing on remote servers.
xNVMe - Portable and high-performance libraries and tools for NVMe devices as well as support for traditional/legacy storage devices/interfaces.
tailscale - The easiest, most secure way to use WireGuard and 2FA.
act - Aerospike Certification Tool
Speed-Test - SpeedTest by OpenSpeedTest™ is a Free and Open-Source HTML5 Network Performance Estimation Tool Written in Vanilla Javascript and only uses built-in Web APIs like XMLHttpRequest (XHR), HTML, CSS, JS, & SVG. No Third-Party frameworks or libraries are Required. Started in 2011 and moved to OpenSpeedTest.com dedicated Project/Domain Name in 2013.
glommio - Glommio is a thread-per-core crate that makes writing highly parallel asynchronous applications in a thread-per-core architecture easier for rustaceans.