~/talk

PRED: Performance-oriented Random Early Detection for Consistently Stable Performance...

Talkat NSDI '25 · 2025-04-28..04-30· [networking]
name:Tong Li
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name:Kun Tan
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name:Ke Xu
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slides:none on file

PRED implements on- switch flow counting and two loosely coupled subsystems, Flow Concurrent Stabilizer (FCS) and Queue Length Adjuster (QLA), using MIMD to scale RED slope with active-flow concurrency and A/B-style trials plus a utility function to nudge RED safely for traffic mix. Prototype runs on Tofino1/2 hardware with DCTCP hosts; testbed and large-scale sims show 66% lower switch queue length and up to 80% lower median FCT versus static RED, and 34% tail FCT reduction versus a learning baseline.

AI-written summary · about

  1. 0:00Context and motivation
  2. 0:52Congestion control methods
  3. 3:11RED parameter optimization
  4. 5:14Traffic-aware insights
  5. 8:48Design of PRED
  6. 10:25PRED architecture
  7. 12:37Implementation details
  8. 13:19Evaluation and results
  9. 14:25Conclusions
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