Midgress-aware traffic provisioning for content delivery

on YouTube ↗18m

" summary

Proposes midgress-aware traffic provisioning that assigns hundreds of traffic classes to CDN servers to cut cache-miss (midgress) traffic; uses footprint descriptors and FFT-based convolution to predict miss-rate curves and eviction ages, formulates an MILP for optimal assignment, and implements a fast local-search heuristic that runs quickly at production scale. Evaluation on 25 real traffic classes from Akamai shows near 20% midgress reduction versus midgress-unaware baselines, with the heuristic close to optimal and practical for deployment.

AI-written summary · about

" chapters (11)

1. 0:00Start
2. 1:29Performance and cost metrics
3. 3:04Cache management
4. 4:52Traffic provisioning to reduce midgress
5. 6:22Eviction age equality
6. 7:16Footprint descriptors
7. 8:47Traffic mixing using FD calculus
8. 9:21Traffic provisioning to minimize midgress
9. 9:59Traffic provisioning as an optimization problem
10. 12:13Metro-level traffic provisioning Traffic classes
11. 13:05Trace characteristics

" related talks

• 16mMedley: Optimizing Midgress Bandwidth for Commercial Live Streaming CDNsYang Xu, Feng Qian, Yajie Peng, Xiaofei Pang, Haiping Wang, Shu Shi, Wanxin Shi, Sandesh Dhawaskar Sathyanarayana, Yinghao Yang, La Zuo, Hebin Yu, Ruixiao Zhang, Ruoshi Sun, Ruili Fang, Zhenpeng Zhu, Weiqi Chen · NSDI '26
• 19mLearning Production-Optimized Congestion Control Selection for Alibaba Cloud CDNXu Chen, Ennan Zhai, Haoran Xu, Chen Chen, Guihai Chen, Xumiao Zhang, Xuan Zeng, Xiaoxi Zhang, Yubing Qiu, Yiping Zhang, Chong Hao · NSDI '25
• 16mCredence: Augmenting Datacenter Switch Buffer Sharing with ML PredictionsStefan Schmid, Vamsi Addanki, Maciej Pacut · 21st USENIX Symposium on Networked Systems Design and Implementation (NSDI '24)
• 12mCost-effective Cloud Edge Traffic Engineering with CascaraSharad Agarwal, Paramvir Bahl, Rachee Singh, Matt Calder · NSDI ’21
• 17mTowards provably performant congestion controlRuben Martins, Anup Agarwal, Srinivasan Seshan, Venkat Arun, Devdeep Ray · 21st USENIX Symposium on Networked Systems Design and Implementation (NSDI '24)
• 16mOptimizing Network Provisioning through CooperationRanjita Bhagwan, Yogesh Bansal, Harsha Sharma, Parth Thakkar, Sagar Bharadwaj, Venkata N. Padmanabhan, Vijay Kumar, Kathleen Voelbel · 19th USENIX Symposium on Networked Systems Design and Implementation (NSDI '22)
• 20mPostMan: Rapidly Mitigating Bursty Traffic by Offloading Packet ProcessingRong Shi, Yang Wang, Chen Qian, Panpan Jin, Jian Guo, Yikai Xiao, Yipei Niu, Fangming Liu · USENIX ATC '19
• 17mBridging the Gap between QoE and QoS in Congestion Control: A Large-scale Mobile...Yan Zhang, Zili Meng, Yixuan Zhang, Jia Zhang, Enhuan Dong, Quan Cheng, Shaorui Ren · USENIX ATC '23