~/talk

Mortise: Auto-tuning Congestion Control to Optimize QoE via Network-Aware Parameter

on YouTube 15m
Talkat NSDI '26 · 2026-05-04..05-06· [networking, machine-learning]

speakers

name:Yixin Shen
links:none on file
name:Ruihua Chen
links:none on file
name:Bo Wang
links:none on file
name:Jing Chen
github:lancejchen
name:Haochen Zhang
links:none on file
name:Minhu Wang
website:https://www.minhu.wang
name:Yan Liu
website:https://www.xiaohongshu.com/user/profile/5b2afdf311be104ac3c22931
name:Mingwei Xu
links:none on file
name:Zili Meng
links:none on file

resources

video:https://youtu.be/ncHc6Rq00nE
slides:none on file

summary

Mortise auto-tunes rule‑based congestion control in real time by inferring an application's throughput‑delay‑loss preference and mapping that to CCA parameters, implemented on Linux TCP with eBPF + Copa delta tuning. It introduces a QoS tradeoff proxy that extracts lambda/beta from instantaneous QoE gradients, uses adaptive measurement and a feedback controller to converge (demo shows near‑optimal in <1s), and shows production gains across 128 cities with low overhead, reporting up to 73% and 167% QoE gains for downloads and streaming.

AI-written summary · about

chapters (8)

  1. 0:00Mortise framework
  2. 1:43Congestion control for QoE
  3. 4:12CCA trade-offs
  4. 6:20Current solution limits
  5. 8:05Mortise challenges
  6. 11:35Trade-off controller design
  7. 12:58Real-world results
  8. 13:40Conclusion

related talks

~/search
type to search 6,249 conferences, 138,987 speakers and 185,172 talks
~/help
cmdctrl k
search every conference, speaker and series
/
focus the filter search
h
home
c
conferences
s
speakers
e
series
t
light / dark — the status bar button does the same
?
this help
esc
close this, then clear every filter — or just the search, while you are typing in it

Ignored while you are typing. Pages without a filter rail have no search to focus.