Rajarshi Chowdhury

UpcomingI/O for LLM Inference: A Survey of Storage and Memory Bottlenecks

Artificial Intelligence Review (Springer Nature) · accepted, to appear

AcceptedA Secure, Manifest-Based Framework for Delegated Privilege Promotion

Rajarshi Chowdhury, Akshay Shah

IEEE/IFIP DSN 2026

A security architecture for automated patching in air-gapped environments.

AcceptedIORM: Hierarchical I/O Governance for Thousands of Consolidated Databases on Oracle Exadata

Rajarshi Chowdhury, Akshay Shah, Zakaria Alrmaih, Chenhao Guo, Anubhav Singh, Sue Lee

VLDB 2026

Control-plane / data-plane architecture for enforcing strict SLAs in multi-tenant environments.

AcceptedHardware-Transparent I/O Governance in Disaggregated Heterogeneous Storage

Rajarshi Chowdhury, Akshay Shah, Sue K. Lee

IEEE IC2E 2026

The I/O Resource Manager used in Oracle Exadata / Exascale to resolve "noisy-neighbor" conflicts at hyperscale.

Paperuringscope: Portable, Low-Overhead Observability for io_uring

PaperDesign and Implementation of Parallel Pattern Matching Algorithms for Multi-Core Systems

International Journal of Advanced Computing (IJAC), Vol. 2, Issue 4 · October 2010

TalkIORM: Hierarchical I/O Governance for Thousands of Consolidated Databases on Oracle Exadata

VLDB 2026 · September 2026

TalkHardware-Transparent I/O Governance in Disaggregated Heterogeneous Storage

IEEE IC2E 2026 · October 2026

TalkInvited talk — Parallel Data Lab (PDL) Speaker Series

Carnegie Mellon University · PDL · June 2026

TalkA Secure, Manifest-Based Framework for Delegated Privilege Promotion

IEEE/IFIP DSN 2026 · Program · June 2026

TalkIntegrating SPDK with Oracle RDBMS

SPDK, PMDK & Intel® VTune™ Amplifier Summit · April 2019

TalkTop 10 Tips and Tricks for Getting the Best Database Performance from Oracle Solaris Systems

Oracle OpenWorld, San Francisco · 2013

Hybrid I/O Management Architecture with Tiered Dispatch

Patent pending · Oracle

Secure Software Component Activation through Signature-Governed Attribute Change

Patent pending · Oracle

Hyper-Converged Storage Architecture with Zero-Copy NVMe-over-Fabrics for High-Performance Clustered Systems

Patent pending · Oracle

Librarypolicybook

rch0wdhury.github.io/policybook · github.com/rch0wdhury/policybook · TypeScript / Python / C

Runnable decision policies for cache eviction, rate limiting, retries, and LLM KV-cache eviction, each with a one-page explainer, shared test vectors, and reproducible benchmarks. Copy a policy into your repo via the CLI (npx policybook add), or install the whole set with pip; C ships as a single header. MIT licensed.

Tooluringscope

github.com/rch0wdhury/uringscope · C / eBPF

Kernel and userspace tracing for io_uring: a single-binary tracer and analyzer that attaches to any process and reconstructs what each request did, from per-opcode latency and hidden async-worker punts to batching efficiency and stalls. Each report ends with findings that name the problem, show the evidence, and suggest a fix; a --check mode catches buffer races and use-after-free hazards, with JSON reports, CI gates, live mode, OpenMetrics, and Perfetto timelines alongside. Built on CO-RE eBPF, so it survives the kernel's io_uring tracepoint churn instead of pinning to one release.