arXiv AI

AOS-Bench: Can LLM Agents Manage Dynamic Workloads?

AOS-Bench evaluates large language model agents as dynamic workload managers, testing their ability to handle multiple concurrent tasks under shared CPU and memory limits. The benchmark shows that isolated task success does not predict performance in a streaming workload, with significant drops in heavy and medium scenarios. Execution‑policy experiments reveal that simple concurrency controls can rival more complex management strategies, highlighting the importance of workload management as a distinct agent capability.

arXiv AI
Aug 18

From LLM Inference to Agentic Workloads: Characterization and Implications for Serving Systems

arXiv:2608. 15127v1 Announce Type: cross Abstract: Agentic applications are shifting AI serving from isolated model inference to long-running workloads in which LLMs coordinate tools, environments, and persistent state.

By Chaokun Chang, Yukun Zhou, Kaihua Fu, Dakai An, Tianyu Feng, Hanfeng Lu, Sheng Yao, Pu Guo, Yinghao Yu, Yizhou Shan, Bo Li, Binhang Yuan, Wei Wang
arXiv AI
Oct 7

MemMux: Runtime Verification and Honest Resource Attribution for Fleets of Parallel Coding Agents

MemMux is a local runtime designed to provide runtime verification and honest resource attribution for fleets of parallel coding agents. It emits observable signals that track per‑agent memory usage, ensure complete reclamation of terminated agents, detect escaped child processes, and keep the system from exceeding a bounded memory footprint. In benchmarks against tmux and a raw‑process baseline, MemMux keeps a fleet under a 7.5 GiB budget with zero swap, while ungoverned tools exceed the budget and spill into swap, and it achieves 100 % attribution with low overhead.

By Sumanyu Muku
arXiv AI
Sep 17

Ask the Tool, Don't Guess: Agent Tool Calls Hold Their Progress, and the Serving System Should Read It

The paper argues that agentic systems waste time and memory by guessing how long tool calls will take, rather than using explicit progress signals from the tools themselves. It demonstrates that tools can report their remaining work or imminent completion, and that incorporating this feedback into serving systems dramatically improves cache decisions and reduces token latency. The authors show that this approach outperforms existing predictors and works robustly across different environments.

By Yipeng Liu, Yingqiang Zhang, Feifei Li, Huanchen Zhang
arXiv AI
Sep 18

Not All AI Agents Are Equal: Characterizing Resource and Performance Dynamics

The paper investigates how large‑language‑model (LLM) based AI agents mix latency, local resource usage, and container bottlenecks when processing user requests that involve remote LLM calls and local tool execution. By measuring three representative tasks—retrieval‑augmented question answering, web search, and software coding—the authors show that agents exhibit diverse resource dynamics, with concurrent requests revealing task‑specific bottlenecks in CPU, disk I/O, and memory. Leveraging these insights, they propose CPU‑aware tool admission and task‑aware CPU allocation, achieving up to a 5.4× speed‑up for CPU‑sensitive tasks and a 32% reduction in average latency across multiple tasks.

By Wonmi Choi, Minuk Park, Zhixiong Niu, Yongqiang Xiong, Chuck Yoo, Gyeongsik Yang
arXiv Machine Learning
Aug 10

Cascade: Exploiting SLO-Aware latency budget for fair and high goodput LLM inference serving

arXiv:2608. 06557v1 Announce Type: cross Abstract: The reasoning and agentic capabilities of large language models have expanded the range of applications they support, from short interactive exchanges to long, compute-heavy requests.

By Muhammad Adnan, Rohan Mahapatra, Prashant J. Nair, Daniel Berger, Pantea Zardoshti, Rodrigo Fonseca, Esha Choukse
arXiv AI
Oct 15

Energy per Successful Goal: Goal-Level Energy Accounting for Agentic AI Systems

The paper introduces A-LEMS, a framework that measures AI energy consumption at the goal level rather than per model invocation, defining Energy per Successful Goal (EpG) as total workflow energy divided by successfully completed goals. It also proposes the Orchestration Overhead Index (OOI) to quantify the extra energy cost of agentic systems compared to linear execution, revealing significant overheads across various hardware platforms and task families. The study demonstrates that traditional per-inference metrics underestimate the true energy cost of completing user goals in agentic AI workflows.

By Deepak Panigrahy, Aakash Tyagi, Stephen Abkin, David Kebo Houngninou, Rabi Mahapatra
arXiv AI
Oct 2

Worse Together: How Performance Breaks Down in Multi-User Multi-Agent Teams

The paper investigates how coordination among AI agents serving different users degrades performance compared to a single coordinating agent. Across five advanced models and 77 scenarios in four shared-resource environments—API key budgets, clinic calendars, personal assistant bookings, and merge queues—the study finds that multi‑agent teams consistently underperform, sometimes collapsing entirely, and that even with communication channels coordination overhead remains significant. The authors identify specific failure modes such as stalling, action overriding, and claim fabrication, and propose environment‑specific mitigations like team leads and procedural instructions, while releasing the MAMUBench benchmark for future research.

By Sahan Paliskara, Nattaput Namchittai, Andrew Lampinen