Publications de Sanidhya Kashyap

Single-Address-Space FaaS with Jord

Babak Falsafi, Mathias Josef Payer, Sanidhya Kashyap, Yuanlong Li, Atri Bhattacharyya, Abhishek Bhattacharjee

Function-as-a-Service (FaaS) has emerged as a popular cloud paradigm that simplifies software development and deployment by providing scalable and event-driven function execution without the burden of managing servers. FaaS was originally created with a fu ...

ACM2025

PolyStore: Exploiting Combined Capabilities of Heterogeneous Storage

Sanidhya Kashyap

With the "non-hierarchical" trend in emerging storage media, the philosophy of hierarchy inevitably falls short in fully leveraging the combined bandwidth of multiple devices. In this paper, we propose a horizontally structured storage architecture that le ...

USENIX Association2025

Tolerate It if You Cannot Reduce It: Handling Latency in Tiered Memory

Sanidhya Kashyap, Vishal Gupta

Current memory tiering systems mitigate asymmetric latency through page migration between tiers. While this approach effectively h ides l atency, i t overlooks scenarios where latency could potentially be tolerated. We propose that an efficient system shou ...

ACM2025

Context-aware Prefetching for Near-Storage Accelerators

Sanidhya Kashyap

We present ContextPrefetcher, a host-guided high-performant prefetching framework for near-storage accelerators that prefetches data blocks from storage (e.g., NAND) to devicelevel RAM. Efficiently prefetching data blocks to device-level RAM reduces storag ...

ACM2024

Fast, Flexible, and Practical Kernel Extensions

Sanidhya Kashyap

The ability to safely extend OS kernel functionality is a longstanding goal in OS design, with the widespread use of the eBPF framework in Linux and Windows demonstrating the benefits of such extensibility. However, existing solutions for kernel extensibil ...

Association for Computing Machinery, Inc2024

Transparent Multicore Scaling of Single-threaded Network Functions

George Candea, Sanidhya Kashyap

This paper presents NFOS, a programming model, runtime, and profiler for productively developing software network functions (NFs) that scale on multicore machines. Writing shared-state concurrent systems that are both correct and scalable is still a seriou ...

Assoc Computing Machinery2024

MONARCH: a fuzzing framework for distributed file systems

Mathias Josef Payer, Sanidhya Kashyap, Zhiyao Feng

Distributed file systems (DFSes) are prone to bugs. Although numerous bug-finding techniques have been applied to DFSes, static analysis does not scalewell with the sheer complexity of DFS codebases while dynamic methods (e.g., regression testing) are limi ...

USENIX Association2024

TENET: Memory Safe and Fault Tolerant Persistent Transactional Memory

Sanidhya Kashyap

Byte-addressable non-volatile memory (NVM) allows programs to directly access storage using memory interface without going through the expensive conventional storage stack. However, direct access to NVM makes the NVM data vulnerable to software bugs and ha ...

USENIX ASSOC2023

Skadi: Building a Distributed Runtime for Data Systems in Disaggregated Data Centers

Sanidhya Kashyap, Qin Zhang

Data-intensive systems are the backbone of today's computing and are responsible for shaping data centers. Over the years, cloud providers have relied on three principles to maintain cost-effective data systems: use disaggregation to decouple scaling, use ...

Assoc Computing Machinery2023

Enabling High-Performance and Secure Userspace NVM File Systems with the Trio Architecture

Sanidhya Kashyap, Vojtech Aschenbrenner

Userspace library file systems (LibFSes) promise to unleash the performance potential of non-volatile memory (NVM) by directly accessing it and enabling unprivileged applications to customize their LibFSes to their workloads. Unfortunately, such benefits p ...

Assoc Computing Machinery2023