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Summary

Page-based memory tiering moves hot pages to fast memory tiers and cold pages to slower, larger tiers, but many pages contain a mixture of hot and cold objects. ObjecTier improves fast-tier utilization by using application-level object knowledge to cluster hot and cold objects across pages before an underlying memory-tiering system makes page-placement decisions.

The framework is designed to work with existing page-based tiering systems without requiring those systems to change.

Bibtex

@inproceedings{pawar:objectier,
  author = {Vinita Pawar and Ankit Bhardwaj and Ryan Stutsman},
  title = {{ObjecTier: Non-Invasively Boosting Memory Tiering Performance}},
  booktitle = {Companion of the 16th ACM/SPEC International Conference on Performance Engineering},
  series = {ICPE '25},
  year = {2025},
  pages = {180--186},
  publisher = {ACM},
  url = {https://doi.org/10.1145/3680256.3721319},
  doi = {10.1145/3680256.3721319},
}

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