一作OSDI 2026Oral· Operating Systems & Distributed Systems
OBASE: Object-Based Address-Space Engineering to Improve Memory Tiering
Vinay Banakar · Suli Yang · Kan Wu · Andrea C. Arpaci-Dusseau · Remzi H. Arpaci-Dusseau · Kimberly Keeton
摘要
Hardware and OS mechanisms for memory tiering are widely deployed, yet datacenters still overprovision DRAM. The root cause is _hotness fragmentation_: allocators place objects by size rather than access pattern, so hot and cold objects become interleaved within the same pages. A single hot objec...