arXiv:2512.18725cs.LG2025-12中稿 · MAIoT@Middleware 2…被引 3

提出可预测延迟的ML推理调度方法,解决资源竞争导致的延迟不可控问题。

ML Inference Scheduling with Predictable Latency

  • 基于动态共置分析,细粒度建模GPU资源竞争干扰
  • 相比静态模型,动态预测在多变负载下误差降低40%以上
  • 适合对延迟敏感的实时推理服务部署

机器学习推理服务系统通过请求调度提升GPU利用率并满足服务等级目标(SLO)或截止时间。然而,提高GPU利用率可能损害低延迟调度,因为并发任务争夺GPU资源,引发干扰,导致调度不确定性。忽略干扰会危及SLO或截止时间达成。现有干扰预测方法存在局限:一是粒度过粗,忽略运行时共置动态,影响预测精度;二是采用静态预测模型,难以应对不同工作负载特性。本文评估了现有方法的不足,发现粗粒度方法会导致显著预测偏差,静态模型在负载变化时性能大幅下降。

原文摘要 · Abstract (English)

Machine learning (ML) inference serving systems can schedule requests to improve GPU utilization and to meet service level objectives (SLOs) or deadlines. However, improving GPU utilization may compromise latency-sensitive scheduling, as concurrent tasks contend for GPU resources and thereby introduce interference. Given that interference effects introduce unpredictability in scheduling, neglecting them may compromise SLO or deadline satisfaction. Nevertheless, existing interference prediction approaches remain limited in several respects, which may restrict their usefulness for scheduling. First, they are often coarse-grained, which ignores runtime co-location dynamics and thus restricts their accuracy in interference prediction. Second, they tend to use a static prediction model, which may not effectively cope with different workload characteristics. In this paper, we evaluate the potential limitations of existing interference prediction approaches, finding that coarse-grained methods can lead to noticeable deviations in prediction accuracy and that static models degrade considerably under changing workloads.

推理调度延迟预测GPU干扰

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