~/talk

PolyStore: Exploiting Combined Capabilities of Heterogeneous Storage

on YouTube 19m
Talkat FAST '25 · 2025-02-25..02-27· [databases]

speakers

name:Yujie Ren
links:none on file
name:David Domingo
links:none on file
name:Jian Zhang
links:none on file
name:Paul John
links:none on file
name:Rekha Pitchumani
links:none on file
name:Sanidhya Kashyap
links:none on file
name:Sudarsun Kannan
links:none on file

resources

video:https://youtu.be/gpXrPoFusGw
slides:none on file

summary

PolyStore is a meta layer that sits above device‑optimized file systems (Nova on persistent memory and ext4 on NVMe) and implements a user‑level runtime plus OS component, a profile range tree index, epoch‑based thread monitoring for dynamic data placement, and a DRAM buffer cache with device‑specific admission/eviction. Evaluated on persistent memory + NVMe SSD, it saturates up to 90% of combined bandwidth, outperforms hierarchical caching/tiering (up to 6.1× on sequential microbenchmarks) and reports 1.11X–9.38X microbenchmark gains and 1.52X–2.02X speedups on real applications.

AI-written summary · about

chapters (11)

  1. 0:00PolyStore introduction
  2. 1:45Hierarchical storage limits
  3. 5:16PolyStore design principles
  4. 7:04PolyStore architecture
  5. 8:29Dynamic data placement
  6. 10:16DRAM buffer cache
  7. 13:04Consistency and security
  8. 13:26Evaluation setup
  9. 15:14Dynamic placement impact
  10. 16:40Real-world benefits
  11. 18:23Conclusion

related talks

~/search
type to search 6,249 conferences, 138,987 speakers and 185,172 talks
~/help
cmdctrl k
search every conference, speaker and series
/
focus the filter search
h
home
c
conferences
s
speakers
e
series
t
light / dark — the status bar button does the same
?
this help
esc
close this, then clear every filter — or just the search, while you are typing in it

Ignored while you are typing. Pages without a filter rail have no search to focus.