this post was submitted on 15 Apr 2024
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Increase your Linux Server Internet Speed with TCP BBR Congestion-Control (www.cyberciti.biz)
submitted 7 months ago by HumanPerson@sh.itjust.works to c/selfhosted@lemmy.world
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I recently found this on Reddit while looking into why jellyfin is effected so much by latency. I found that this worked and thought I would share it because it is generally applicable, takes five minutes to setup, and helps a lot with bandwidth on higher latency connections. I admit I am not sure of the technical stuff behind this, so if anyone would like to chime in that would be much appreciated.

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[–] blackstrat@lemmy.fwgx.uk 4 points 7 months ago (2 children)

I skimmed through it and have no idea what BBR stands for.

[–] jlh@lemmy.jlh.name 9 points 7 months ago

It's an algorithm for determining how fast to upload packets. This article just talks about how to enable it.

Here's the Wikipedia section about it: https://en.wikipedia.org/wiki/TCP_congestion_control#TCP_BBR

The gist is that instead of only throttling upload rate based on packet loss, BBR constantly measures roundtrip delay (ping) to determine how much bandwidth is available.

[–] loki@lemmy.ml 4 points 7 months ago (1 children)

Bottleneck Bandwidth and Round-trip propagation time (BBR)

[–] blackstrat@lemmy.fwgx.uk 1 points 7 months ago (1 children)

Thank you! I hate unexplained acronyms

[–] EarMaster@lemmy.world 2 points 7 months ago (1 children)

It is explained in the article though...

[–] blackstrat@lemmy.fwgx.uk 6 points 7 months ago

Ahh yes, the first time it is defined is in the conclusion after being used 25 times previously in the article.