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Autori principali: Li, Ao, Yang, Shangpeng, Chen, Fahao, Xu, Tianheng, Li, Peng, Su, Zhou
Natura: Preprint
Pubblicazione: 2026
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Accesso online:https://arxiv.org/abs/2605.22566
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author Li, Ao
Yang, Shangpeng
Chen, Fahao
Xu, Tianheng
Li, Peng
Su, Zhou
author_facet Li, Ao
Yang, Shangpeng
Chen, Fahao
Xu, Tianheng
Li, Peng
Su, Zhou
contents Large Language Model (LLM)-based agents demonstrate strong reasoning and execution capabilities on complex tasks when guided by structured instructions, commonly referred to as workflows. However, existing workflow-assisted agent serving systems typically rely on predefined templates and shallow matching mechanisms, which limit their ability to capture deep semantic relationships and generalize to previously unseen tasks. To address these limitations, we propose a new workflow management paradigm that represents workflows using a unified graph, termed wGraph, where each node corresponds to an atomic operation. wGraph serves as a shared substrate from which task-specific workflows are dynamically instantiated. Building on wGraph primitives, we introduce GraphFlow, a system that efficiently integrates workflows into agent serving through two key designs. First, adaptive workflow generation dynamically constructs workflows from wGraph based on task semantics and constraint requirements. Second, workflow state management exploits wGraph structure to efficiently manage Key-Value (KV) caches, reducing redundant computation during agent serving. Extensive experiments across five benchmark datasets show that GraphFlow consistently outperforms state-of-the-art methods, yielding an average performance improvement of approximately 4.95 percentage points, while achieving an approximately 4$\times$ reduction in memory footprint.
format Preprint
id arxiv_https___arxiv_org_abs_2605_22566
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle GraphFlow: A Graph-Based Workflow Management for Efficient LLM-Agent Serving
Li, Ao
Yang, Shangpeng
Chen, Fahao
Xu, Tianheng
Li, Peng
Su, Zhou
Machine Learning
Large Language Model (LLM)-based agents demonstrate strong reasoning and execution capabilities on complex tasks when guided by structured instructions, commonly referred to as workflows. However, existing workflow-assisted agent serving systems typically rely on predefined templates and shallow matching mechanisms, which limit their ability to capture deep semantic relationships and generalize to previously unseen tasks. To address these limitations, we propose a new workflow management paradigm that represents workflows using a unified graph, termed wGraph, where each node corresponds to an atomic operation. wGraph serves as a shared substrate from which task-specific workflows are dynamically instantiated. Building on wGraph primitives, we introduce GraphFlow, a system that efficiently integrates workflows into agent serving through two key designs. First, adaptive workflow generation dynamically constructs workflows from wGraph based on task semantics and constraint requirements. Second, workflow state management exploits wGraph structure to efficiently manage Key-Value (KV) caches, reducing redundant computation during agent serving. Extensive experiments across five benchmark datasets show that GraphFlow consistently outperforms state-of-the-art methods, yielding an average performance improvement of approximately 4.95 percentage points, while achieving an approximately 4$\times$ reduction in memory footprint.
title GraphFlow: A Graph-Based Workflow Management for Efficient LLM-Agent Serving
topic Machine Learning
url https://arxiv.org/abs/2605.22566