OSDI 2026

136 papers

Incr: Faster Re-Execution via Bolt-On Incrementalization

Yizheng Xie, Evangelos Lamprou, Jerry Xia, Nikos Vasilakis

hS: Speculative Script Reordering at Subprocess Granularity

Georgios Liargkovas, Di Jin, Tianyu (Ezri) Zhu, Dan Liu, A. Bolun Thompson

Diagnosing Performance Issues in Application-Defined Resources

Yigong Hu, You-Liang Huang, Haodong Zheng, Yicheng Liu, Dedong Xie

StriaTrace: Efficient Tracing and Diagnosis for Online LLM Inference (Operational Systems)

Haonan Wu, Yanqing Chen, Kun Qian, Xue Li, Jingbo Xu

ECO: An AI-Driven Code Efficiency Optimizer for Warehouse Scale Computers (Operational Systems)

Hannah Lin, Martin Maas, Maximilian Roquemore, Arman Hasanzadeh, Fred Lewis

Murakkab: Resource-Efficient Agentic Workflow Orchestration in Cloud Platforms

Gohar Irfan Chaudhry, Esha Choukse, Haoran Qiu, Íñigo Goiri, Rodrigo Fonseca

Xkernel: Principled Performance Tunability of Operating System Kernels

Zhongjie Chen, Wentao Zhang, Yulong Tang, Ran Shu, Fengyuan Ren

What Are You (M)Waiting For: The Hidden Cost of Idle in the Hyperscale Cloud (Operational Systems)

Yun Wang, Xingguo Jia, Ben Luo, Kenan Liu, Shengdong Dai

kSTEP: Characterization and Deterministic Testing of Linux CPU Scheduler Bugs

Tingjia Cao, Shawn (Wanxiang) Zhong, Caeden Whitaker, Ke Han, Andrea C. Arpaci-Dusseau

Rakaia: Scalable In-Kernel Scheduling for TCP-Based RPCs

Rui Yang, Konstantinos Prasopoulos, Edouard Bugnion

SBB: Eliminating Centralized Bottlenecks in Userspace Network Runtime

Kang Hu, Shuqi Dong, Chuandong Li, Ran Yi, Zonghao Zhang

Controlling Opaque-Component Effects with Semisolates and Try

Evangelos Lamprou, Tianyu (Ezri) Zhu, Di Jin, Grigoris Ntousakis, Georgios Liargkovas

Breaking the Reward Barrier: Accelerating Tree-of-Thought Reasoning via Speculative Exploration

Shuzhang Zhong, Haochen Huang, Shengxuan Qiu, Pengfei Zuo, Runsheng Wang

When Sampling Lies: Trustworthy Performance Profiling for Flat Workloads with Blink (Operational Systems)

Rishikesh Devsot, ChenXing Yang, Yi Fan Yu, Prabhdeep Singh Soni, Afshin Arefi

The Abstention Protocol: RCA for Clos Fabrics (Operational Systems)

Madhava Gaikwad, Deepak Pandey

ValScope: Value-Semantics-Aware Metamorphic Testing for Detecting Logical Bugs in DBMSs

Li Lin, Liehang Chen, Rongxin Wu, Awarded Best Paper!

Cocoon: A System Architecture for Differentially Private Training with Correlated Noises

Donghwan Kim, Xin Gu, Jinho Baek, Timothy Lo, Younghoon Min

Teaching the Old Dog New Tricks: Building Efficient Data Pipelines for Large-Scale LLM Pre-Training (Operational Systems)

Luofan Chen, Chenhan Wang, Weidong Zhang, Jinxin Chi, Hequan Zhang

Syncopate: Efficient Multi-GPU AI Kernels via Automatic Chunk-Centric Compute-Communication Overlap

Xinwei Qiang, Yue Guan, Zhengding Hu, Keren Zhou, Yufei Ding

Hetu v2: A General and Scalable Deep Learning System with Hierarchical and Heterogeneous Single Program Multiple Data Annotations

Haoyang Li, Fangcheng Fu, Hao Ge, Sheng Lin, Xuanyu Wang

Tessera: A Holistic Pipeline Parallelism Framework for Trillion-Parameter Heterogeneous MoE Training (Operational Systems)

Weifang Hu, Langshi Chen, Man Yuan, Youyang Yao, Xiulong Yuan

iLand: An Instruction-Level Dynamic Binary Instrumentation Framework for iOS

Kaitao Xie, Yizhuo Wang, Xiaolong Bai

Extracting Database Access-Control Policies from Web Applications

Wen Zhang, Dev Bali, Jamison Kerney, Aurojit Panda, Scott Shenker

Ichnaea: A Framework for Precise Tracking of Memory Objects

Samad Haque, Sibin Mohan, Aaron Paulos, Partha Pal

Mohabi: Disaggregating and Sandboxing the Firefox JavaScript Engine

Abhishek Sharma, Anand Balaji, Zachary Yedidia, Anthony Du, Taehyun Noh

USEC: A User-Requirement-Driven Mandatory Access Control Framework for Operating Systems (Operational Systems)

Yu Jiang, Wenhuan Liu, Fuchen Ma, Yuheng Shen, Yuanliang Chen

MDK: Rethinking the Data Center Memory Reclamation Problem

Shaurya Patel, Suli Yang, Yawen Wang, Kan Wu, Alexandra (Sasha) Fedorova

OBASE: Object-Based Address-Space Engineering to Improve Memory Tiering

Vinay Banakar, Suli Yang, Kan Wu, Andrea C. Arpaci-Dusseau, Remzi H. Arpaci-Dusseau

Finding NEMO: Nimble and Expressive Memory Observability

Shihang Li, Matthew Giordano, Tushar Garg, Rohan Kadekodi, Daniel S. Berger

MAC: Metadata Acceleration for Sustainable Performance in Big-Data Systems with CXL DRAM

Dusol Lee, Yan Sun, Houxiang Ji, Vinit Gupta, Austin Antony Cruz

Break On Through to the Other Side: Pooling Memory Elastically with RamRyder

Yanbo Zhou, Erci Xu, Dongjoo Seo, Adam Manzanares, Steven Swanson

Prism: Cost-Efficient Multi-LLM Serving via GPU Memory Ballooning

Shan Yu, Yifan Qiao, Mingyuan Ma, Yangmin Li, Shuo Yang

Simple Is Better: Multiplication May Be All You Need for LLM Request Scheduling

Dingyan Zhang, Jinbo Han, Kaixi Zhang, Xingda Wei, Sijie Shen

No Buffer, No Bottleneck: Efficient Zero-Copy KV Cache Offloading for Long-Context LLMs

Shutian Luo, Haiying Shen

ECHO: Efficient KV Cache Offloading with Lossless Prefetching for Serving Native Sparse Attention LLMs

Guangda Liu, Wenhao Chen, Chengwei Li, Zhenyu Ning, Jing Lin

Strata: Hierarchical Context Caching for Long Context Language Model Serving

Zhiqiang Xie, Ziyi Xu, Mark Zhao, Yuwei An, Vikram Sharma Mailthody