PPT-Tail Latency: Networking

The story thus far Tail latency is bad Causes Resource contention with background jobs Device failure Unevensplit of data between tasks Network congestion for reducers Ways to address tail latency. my tail and i tail docking for dogs ~ the end ~ What can I do? Next time you want to buy a puppy, insist on a puppy with a natural, long tail. As long as Insist on a tail, or cancel the sale. If you Kulkarni. . Ameya.s. . JongHwa. Song. Ashvin. Goal (University of Toronto). Charles . Krasic. (University of British Columbia). Jonathan Walpole (Portland State University) . : A Networking Framework. for Local Multiplayer Games. A. Le . †. , L. Keller . ‡. , C. . Fragouli. . ‡. ,. . A. . Markopoulou. †. † . U. niversity. of California, Irvine. ‡ . École Polytechnique Fédérale de Lausanne. an update. November 2013. Norman Gee. Caveat. The spreadsheet calculation has never agreed with the measured numbers. Of course . Thilo’s. measurements are right and the spreadsheet is wrong. Need to understand the . Need to get Processing closer to storage. Need to get tasks close to data. Rack locality: . Hadoop. Kill task and if a local slot is available: Quincy. Why?. Network is bad: gives horrible performance. George . Prekas. , . Marios. . Kogias. , Edouard . Bugnion. 1. 2. Problem: Serve . μ. s-scale RPCs. Applications: KV-stores, In-memory DB. Datacenter environment:. Complex fan-out . –. fan-in patterns. Lecture 23 * 14-848 * Fall 2018. What Is “The Tail”?. Most requests are answered promptly. Some requests are slower. As response times get faster, the difference between the fast and the slow grows. Showan Esmail Asyabi, . Azer. . Bestavros. , . Erfan. . Sharafzadeh. , and Timothy Zhu. In-memory Key-Value stores. Non-persistent storage backbones. Tail latency impacts the overall performance. Saehoon Kim. §. , . Yuxiong He. *. ,. . Seung-won Hwang. §. , . Sameh Elnikety. *. , . Seungjin Choi. §. §. *. Web Search Engine . Requirement. 2. Queries. High quality + Low latency. This talk focuses on how to achieve low latency without compromising the quality. Jialin. . Li, Naveen Kr. Sharma. , Dan . R. K. Ports and Steven D. . Gribble . Presented By: Tejala . Thippeswamy. Agenda. Introduction and Background. The Approach. Ideal Latency Distribution. Testbed. *. *Measurement papers excluded. 2. I would have done this so differently, and so much better … . 3. DCTCP. Presenting work of many teams in Microsoft . 4. 5. Poor search performance due to TCP . incast. CSE-291 (Cloud Computing), Fall 2016. Gregory . Kesden. Networking Recap. Storage Intro. Long Haul/Global Networking. Speed of light is limiting; Latency has a lower bound (.). Throughput is a cost, but not otherwise a limitation. Date:. 2024-. 10. -. 10. October 2024. Akira Kishida, NTT. Slide . 1. Authors:. Name. Affiliations. Address. Phone. e-mail. Akira Kishida. NTT. 1-1, Hikarinooka Yokosuka-Shi, Kanagawa 239-0847, Japan. TF Interspersing . express traffic (IET) . Ludwig Winkel, Siemens AG. and. . IEEE 802.1 Time sensitive Networking (TSN). Michael Johas Tenner, Broadcom. IEEE . 802.1 / IEEE . 802.3 . Tutorial #2, . March, 2015 .