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Author

A. Shah

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Preprint Sep 2026

io_uring in Oracle Database: A Hybrid Storage I/O Architecture at Production Scale

We describe the integration of io_uring into Oracle Database's storage layer and the architectural decisions required to deploy it in a production multi-process RDBMS. Our design uses per-process ring contexts that eliminate inter-process synchronization, a shared buffer registration mechanism now part of the mainline...

R. Chowdhury, A. Shah, Margaret Susairaj et al. · 0 citations
Preprint Jul 2026

Hardware-Transparent I/O Governance in Disaggregated Heterogeneous Storage

The I/O Resource Manager (IORM), a multi-stage distributed scheduler deployed in production within Oracle Exadata Exascale, combines three mechanisms: a hardware-aware cost modeler that normalizes I/O accounting using datasheet-derived fixed costs to make limits invariant across hardware generations.

R. Chowdhury, A. Shah, Sue K. Lee · 0 citations

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