Author

R. Chowdhury

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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

#artificial intelligence Preprint Sep 2026

terms.txt: A Consent and Compensation Protocol for Agentic Web Access

This work specifies terms.txt, a robots.txt-style file for per-path, per-purpose machine-access terms, plus an origin-enforced exchange using Web Bot Auth signatures, signed intent, delegation tokens, HTTP 402 negotiation, and signed receipts, and defines what the exchange can enforce, audit, and leave to contract.

R. Chowdhury · 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