@inproceedings{dbd42311e39144e3bcc56755723388aa,
title = "Toward under-millisecond I/O latency in Xen-ARM",
abstract = "This paper addresses the I/O latency issue within Xen-ARM. Although Xen-ARM's split driver presents reliable driver isolation, it requires additional inter-VM scheduling. Consequently, the credit scheduler within Xen-ARM results in unsatisfactory I/O latency for real-time guest OS. This paper analyzes the I/O latency in Xen-ARM's interrupt path, and proposes a new scheduler to bound I/O latency. Our scheduler dynamically assigns priorities to guest OSs so that Xen-ARM ensures to schedule the most urgent task within the system. The experimental results show that Xen-ARM with our new scheduler reduces delay spikes, latency larger than 1ms, from 16% to 1% while retaining the split driver model.",
keywords = "real-time system, virtual machine",
author = "Seehwan Yoo and Kwak, {Kuen Hwan} and Jo, {Jae Hyun} and Chuck Yoo",
year = "2011",
doi = "10.1145/2103799.2103816",
language = "English",
isbn = "9781450311793",
series = "Proceedings of the 2nd Asia-Pacific Workshop on Systems, APSys'11",
booktitle = "Proceedings of the 2nd Asia-Pacific Workshop on Systems, APSys'11",
note = "2nd Asia-Pacific Workshop on Systems, APSys'11 ; Conference date: 11-07-2011 Through 12-07-2011",
}