Syrup

Kaffes, Kostis; Humphries, Jack Tigar; Mazières, David; Kozyrakis, Christos

doi:10.1145/3477132.3483548

Cited by 24 publications

(1 citation statement)

References 23 publications

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“…SKQ [69] made event scheduling on top of the Linux kernel configurable. Ford et al [34], Slite [37], and ghOSt [44] offload the kernel thread scheduling decision to userspace while Syrup [47] allows users to deploy custom scheduling functions throughout the stack safely. LibPreemptible simplifies the specification and deployment of custom thread scheduling policies, providing complete flexibility in how preemption is employed.…”

Section: User-level Threadingmentioning

confidence: 99%

Adaptive Task-Space Synchronization Control of SMMS Teleoperaiton Systems with Round-Robin Scheduling Protocol

Yin

et al. 2019

2019 Chinese Control Conference (CCC)

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Modern cloud applications are prone to high tail latencies since their requests typically follow highly-dispersive distributions. Prior work has proposed both OS-and systemlevel solutions to reduce tail latencies for microsecond-scale workloads through better scheduling. Unfortunately, existing approaches like customized dataplane OSes, require significant OS changes, experience scalability limitations, or do not reach the full performance capabilities hardware offers. We propose LibPreemptible, a preemptive user-level threading library that is flexible, lightweight, and scalable. LibPreemptible is based on three key techniques: 1) a fast and lightweight hardware mechanism for delivery of timed interrupts, 2) a general-purpose user-level scheduling interface, and 3) an API for users to express adaptive scheduling policies tailored to the needs of their applications. Compared to the prior state-of-the-art scheduling system Shinjuku, our system achieves significant tail latency and throughput improvements for various workloads without the need to modify the kernel. We also demonstrate the flexibility of LibPreemptible across scheduling policies for real applications experiencing varying load levels and characteristics.

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Section: User-level Threadingmentioning

confidence: 99%