In 2025, we launched the original LibreQoS Bufferbloat Test to give users and ISPs a clearer way to measure latency under load, not just raw bandwidth. Today, we are releasing Bufferbloat Test v2.0.
We are dedicating this release to Dave Taht.
Dave helped teach the industry that a network is not defined by a large speed-test number. A network is good when it stays usable while real life is happening: while someone is on a video call, while a game is in progress, while a backup starts, while a family shares one connection. His work on bufferbloat, FQ-CoDel, CAKE, and his years of advocacy changed how many of us think about internet performance.
The test runs in the browser and centers on the question Dave kept pushing the industry to ask: what happens to latency when the link is busy? v2.0 uses a Quality of Outcome (QoO) approach, so it does not stop at raw bandwidth or a single ping number. It looks at latency under load, jitter, loss, and what those things mean for the kinds of traffic people actually care about: browsing, streaming, video calls, audio calls, backups, and gaming.
That same shift in thinking is also showing up in Broadband Forum work around QoO and network quality: moving beyond raw link metrics and toward measures that better reflect whether applications will actually work well for people.
v2.0 also includes clearer charts, simpler rankings, and a cleaner presentation of the results. But the part of this release that means the most to us is the Virtual Household test. That was Dave’s idea. He talked with us about a test that would show what happens when a connection is shared by people doing different things at the same time, because that is how networks are actually experienced at home. In a lot of ways, it is the most natural expression of QoO in the whole project: not just whether the line is fast, but whether the people using it can still do what they need to do. He mentioned it to us before his passing, and we wanted to build it.
Bufferbloat is still with us. People still run into the same problem all the time: a connection that looks fast until someone starts using it. Dave never treated that as a side issue. He understood that it shows up in the things people actually care about, like work, school, telemedicine, games, voice calls, and keeping in touch with family.
We learned a great deal from Dave. This release is dedicated to his memory.
Run the test:https://bufferbloat.libreqos.com/
Try Virtual Household:https://bufferbloat.libreqos.com/vh/
You must be logged in to post a comment.