~/talk

SPDK Under the Hood: Diving into the Disk Subsystem in User Space

TalkinRussianat Saint HighLoad++ 2025 · 2025-06-23..06-24· [linux-and-operating-systems]
links:none on file
slides:none on file

Explains what SPDK (Storage Performance Development Kit) is and why to use it for delivering guest I/O from virtual machines to storage systems. Describes an approach used at MWS: implementing user-space disk subsystem handling with SPDK to optimize I/O path and performance in cloud environments.

AI-written summary · about

  1. 0:00Introduction
  2. 1:09Virtual disks problem
  3. 3:41What is SPDK
  4. 5:52SPDK architecture
  5. 8:42Block devices and modules
  6. 10:30Frontend and interfaces
  7. 11:59Final schema assembly
  8. 13:25Performance testing
  9. 15:52QoS and lock issues
  10. 18:01Low performance causes
  11. 21:54Why issues were missed
  12. 23:20Fixing lock problems
  13. 24:47Final results and updates
  14. 26:53Conclusions and SPDK experience
  15. 28:38Q&A
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