Hitchhike: Efficient Request Submission via Deferred Enforcement of Address Contiguity

Xuda Zheng; Jian Zhou; Shuhan Bai; Runjin Wu; Xianlin Tang; Zhiyuan Li; Hong Jiang; Fei Wu

doi:10.1145/3779212.3790173

ASPLOS2026Top-tier venue

Hitchhike: Efficient Request Submission via Deferred Enforcement of Address Contiguity

Xuda Zheng, Jian Zhou, Shuhan Bai, Runjin Wu, Xianlin Tang, Zhiyuan Li, Hong Jiang, Fei Wu

DOI Publisher

2026Year

Abstract

Modern storage systems operate under high concurrency, making large volumes of outstanding I/Os the norm. However, current I/O submission logic requires requests assigned to the same CPU core to be processed in a serialized manner, turning the software stack into a bottleneck due to high per-request overhead.

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