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Astrolabe system optimizes LLM serving with randomized prediction-guided scheduling

Researchers have developed Astrolabe, a novel scheduling system designed to optimize the serving of large language models (LLMs). This system employs a randomized prediction-guided approach to balance load across multiple LLM instances without the need for costly migration-based rebalancing. Astrolabe combines response-length estimation, latency prediction, and a power-of-two-choices dispatch policy to enhance load balancing and reduce latency. Experiments show Astrolabe can match or exceed the performance of existing baselines, significantly reducing mean and P99 time-to-first-token and end-to-end latency, while also decreasing predictor CPU usage. AI

IMPACT Optimizes LLM serving infrastructure, potentially reducing costs and improving response times for AI applications.

RANK_REASON The cluster contains a research paper detailing a new scheduling system for LLM serving. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.AI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Astrolabe system optimizes LLM serving with randomized prediction-guided scheduling

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The cluster contains a research paper detailing a new scheduling system for LLM serving. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.AI TIER_1 English(EN) · Wei Da, Evangelia Kalyvianaki ·

    Astrolabe: Balancing Load in LLM Serving with Randomized Prediction-Guided Scheduling

    arXiv:2508.03611v3 Announce Type: replace-cross Abstract: This paper presents Astrolabe, a randomized prediction-guided scheduler for one-shot request dispatch in multi-instance large language model (LLM) serving. Astrolabe improves load balancing without relying on migration-bas…