Showing papers by "K. Chandrasekaran published in 2021"
TL;DR: Experimental results indicate that the proposed framework provides superior performance with a reduction of up to 13.97% in the average response time, when compared with systems with no support for rescheduling.
Abstract: Distributed Cloud environments are now resorting to Cloud applications composed of heterogeneous microservices. Cloud service providers strive to provide high quality of service (QoS) and response time is one of the key QoS attributes for microservices. The dynamism of microservice ecosystems necessitates runtime adaptations and microservices rescheduling to avoid performance degradation. Existing works target rescheduling in hypervisor‐based systems, while ignoring the influence of configuration parameters of container‐based microservices. In an effort to address these challenges, this article describes a novel microservice rescheduling framework, throttling and interaction‐aware anticorrelated rescheduling for microservices, to proactively perform rescheduling activities whilst ensuring timely service responses. Based on periodic monitoring of the performance attributes, the framework schedules container migrations. Considering the exponentially large solution space, a metaheuristic approach based on multiverse optimization is developed to generate the near‐optimal mapping of microservices to the datacenter resources. Experimental results indicate that our framework provides superior performance with a reduction of up to 13.97% in the average response time, when compared with systems with no support for rescheduling.
3 citations
TL;DR: In this paper, the transient behavior of grounding systems buried in multilayer soil structure is analyzed under the influence of lightning discharge using inverse Fourier transform (IFT) and the presented method is a hybrid approach based on PEEC technique that represents an equivalent circuit of grounding system buried in multi layer soil structure.
Abstract: In this article, transient behaviour of grounding systems buried in multilayer soil structure is analysed under the influence of lightning discharge. Vertical grounding rods, horizontal conductors and grounding grids are considered in the analysis. The computation of transient behaviour is performed in the frequency domain and obtained in time domain using inverse Fourier transform (IFT). The presented method is a hybrid approach based on PEEC technique that represents an equivalent circuit of grounding system buried in multilayer soil structure. Inductive, capacitive and conductive effects of grounding electrodes due to current leaking into the soil are also considered in the analysis. A procedure is adopted that simplifies the computation process of Sommerfeld method using small number of sample points over the grid. Also impulse impedance for horizontal grounding electrode, vertical rod and grounding grid is evaluated in two-layer soil structures. Simulated results are validated with the experimental and theoretical results reported in the literature and good agreements are found. Proposed method will help to improve the modelling of simple as well as complex grounding system buried in multilayer soil structure.
2 citations