FYI/A: Bufferbloat 101

hwzlite

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Latest Update On 04/2024 :

The go-to-de-facto Web-based Tests now is https://www.waveform.com/tools/bufferbloat

As it was reported that https://www.dslreports.com/speedtest somehow time to time broken in one way or another...

Good video info here for people who are new to bufferbloat ( thx to bro @xiaofan for the head-out :cool: ) :




A picture speaks a thousand words:
Bufferbloat.jpg









XXXXXXXXXXXXXXXXXXXXX Original old reference info below Last edited on Dec 18, 2000 XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX




Here was my test result (M1 500mbps fiber cheapo plan) , tamed under DD-WRT (D-Link DIR-868L) router.

HSFC+CAKE SQM :
http://www.dslreports.com/speedtest/66614028 -



Optimized pure CAKE mode which by design works best without any rate limiters sure as HTB/HFSC scheduler.
(For some strange reason, the developer of DD-WRT did not make a standalone Option for CAKE , so have to tweak it via CLI ) .
http://www.dslreports.com/speedtest/66656741 -
66656741.png



FYI: Consolidated SG ISPs speed test results:



Examples: Results from those untamed top-tier 1GB plan, upload bufferload (lag) under load can reach as high ~900ms :s22: :
M1 http://www.dslreports.com/speedtest/66518951
Singtel http://www.dslreports.com/speedtest/66598644
Starhub http://www.dslreports.com/speedtest/66471859


:s12: http://www.dslreports.com/speedtest :s12:



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