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Effectively Prefetching Remote Memory with Leap

on YouTube 22m
Talkat USENIX ATC '20 · 2020-07-15..07-17· [networking]

speakers

name:Hasan Al Maruf
links:none on file
name:Mosharaf Chowdhury
website:http://www.mosharaf.com/

resources

video:https://youtu.be/5Xs8y0cwOSA
slides:none on file

summary

Leap is a Linux kernel patch (tested on 4.4) that implements an online, majority-based prefetching algorithm plus a stripped data path that cuts out generic block/bio overhead for RDMA-backed remote memory. Integrated with InfinitySwap and similar frameworks, it raises page-cache hit rates, reduces median remote-page latency by up to 104.04× and tail latency by 22.62×, and yields up to 10.16× end-to-end application speedups in their experiments.

AI-written summary · about

chapters (10)

  1. 0:00Introduction to LiP
  2. 0:41Motivation and challenges
  3. 3:25Latency overhead analysis
  4. 7:08LiP design principles
  5. 11:00Trend detection mechanism
  6. 15:01Prefetch window management
  7. 16:20Implementation and setup
  8. 16:51Performance evaluation
  9. 19:44Component benefits and outlook
  10. 21:19Conclusion

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