@inproceedings{01b1d57cfa7a460184903f31a8ecc524,
title = "Split-reclaim method for eliminating metadata cache de-allocation latency in enterprise file servers",
abstract = "This paper presents an analysis of a performance bottleneck in enterprise file servers using Linux and proposes a modification to this operation system for avoiding the bottleneck. The analysis shows that metadata cache de-allocation of current Linux causes large latency in file-request processing when the operational throughput of a file server becomes large. To eliminate the latency caused by metadata cache de-allocation, a new method, called 'split reclaim', which divides metadata cache de-allocation from conventional cache de-allocation, is proposed. It is experimentally shown that the split-reclaim method reduces the worst response time by more than 95% and achieves three times higher throughput under a metadata-intensive workload. The split-reclaim method also reduces latency caused by cache de-allocation under a general file-server workload by more than 99%. These results indicate that the split-reclaim method can eliminate metadata cache de-allocation latency and makes it possible to use low-cost commodity servers as enterprise file servers.",
keywords = "Linux, file server, memory management, scalability",
author = "Takayuki Fukatani and Keiichi Matsuzawa and Hitoshi Kamei and Masakuni Agetsuma and Takaki Nakamura",
year = "2012",
month = dec,
day = "1",
language = "English",
isbn = "9789810720568",
series = "2012 Digest APMRC - Asia-Pacific Magnetic Recording Conference: A Strong Tradition. An Exciting New Look!",
booktitle = "2012 Digest APMRC - Asia-Pacific Magnetic Recording Conference",
note = "2012 Asia-Pacific Magnetic Recording Conference: A Strong Tradition. An Exciting New Look!, APMRC 2012 ; Conference date: 31-10-2012 Through 02-11-2012",
}