Bufferbloat is the undesirable latency that comes from a router
or other network equipment buffering too much data.
projects provide a webspace for addressing chaotic and laggy
network performance. We have a number of projects in flight:
- What to do about Bufferbloat? If you have bad latency/lag, or someone has told you there is Bufferbloat in your network. This page lists several steps that you can take to measure the bloat in your network, and how make solve it completely.
- The Bufferbloat Project
has largely addressed
latency associated with too much buffering in routers.
The cake algorithm (and its predecessors CoDel
and fq_codel algorithms) are the first fundamental advances in the
state of the art of network Active Queue Management in many, many
years. These algorithms have been deployed in millions of
computers, and reduce the induced delay from competing traffic on
a bottleneck link to the order of 20 msec.
The Make-Wi-Fi-Fast Project, with many of the
same team members as the Bufferbloat project, intends to improve
Wi-Fi's speed and use of the spectrum by inserting CoDel/fq_codel
into the Wi-Fi queues, and actively measuring the power required
for successful transmission, in order to minimize contention and
interference on the RF channel.
As of early 2017, our efforts to remove queues, and add Airtime Fairness
to Wi-Fi stacks is bearing fruit, and is available in
- The Request to FCC for Saner Software Policies
is a response to Docket ET 15-170 which appears to require vendors
to lock down the software in Wi-Fi routers, prohibiting
experimentation and field testing of new techniques. Read
the Press Release and
our Letter to the FCC
These projects are all united by a desire to:
- Gather together experts to tackle networking queue
management and system problem(s), particularly those that affect
wireless networks, home gateways, and edge routers
- Spread the word to correct basic assumptions regarding
goodput and good buffering on the laptop, home gateway, core
routers and servers.
- Produce tools to demonstrate and diagnose the problem
- Make experiments in advanced congestion management
- Produce patches to popular operating systems at the device
driver, queuing, and TCP/ip layers to fix the problems.
There are several mailing lists, git repositories, and
people here that are attempting to address the Bufferbloat and
making Wi-Fi fast issues at various levels. We welcome you to join
us in this endeavor!
We welcome all manner of help, either by writing code, or installing and testing our firmware in a wide variety of test situations.