iSWoM: The Incremental Storage Workload Model Based on Hidden Markov Models
iSWoM: The Incremental Storage Workload Model Based on Hidden Markov Models
复制标题
iSWoM:基于隐马尔可夫模型的增量存储工作负载模型
DOI:
10.1007/978-3-642-39408-9_10
复制
发表时间:
2013
期刊:
影响因子:
3.9
通讯作者:
P. Harrison
中科院分区:
文献类型:
--
作者:
Tiberiu S. Chis;P. Harrison
We propose a storage workload model able to process discrete time series incrementally, continually updating its parameters with the availability of new data. More specifically, a Hidden Markov Model (HMM) with an adaptive Baum-Welch algorithm is trained on two raw traces: a NetApp network trace consisting of timestamped I/O commands and a Microsoft trace also with timestamped entries containing reads and writes. Each of these traces is analyzed statistically and HMM parameters are inferred, from which a fluid input model with rates modulated by a Markov chain is derived. We generate new data traces using this Markovian fluid, workload model. To validate our parsimonious model, we compare statistics of the raw and generated traces and use the Viterbi algorithm to produce representative sequences of the hidden states. The incremental model is measured against both the standard model (parameterized on the whole dataset) and the raw data trace.
影响因子:
5.6
作者:
KROGH, A;BROWN, M;HAUSSLER, D
通讯作者:
HAUSSLER, D
影响因子:
5.6
作者:
Burge, C;Karlin, S
通讯作者:
Karlin, S
影响因子:
2.2
作者:
Harrison P
通讯作者:
Harrison P