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Large applications reliant on dynamic compilation for performance often run in horizontally scaled architectures. When this is combined with frequent deployment or demand-based scaling, hardware capacity is lost to frequent warmup phases due to the need ...

Cloud providers offer storage-optimized VMs equipped with locally attached storage to meet the high performance requirements of cloud users. However, current cloud providers cannot enable live migration for storage-optimized VMs due to the high resource ...

Modern operating systems have adopted Berkeley Packet Filters (BPF) as a mechanism to extend kernel functionalities dynamically, e.g., Linux’s eBPF or RIOT’s rBPF. The just-in-time (JIT) compilation of eBPF introduced in Linux eBPF for performance ...

WebAssembly (Wasm) is a virtual machine whose defining characteristic is that it is low-level: Wasm is designed to abstract the hardware below, not language concepts above. This is a prerequisite for providing predictable performance and for avoiding ...

Cloud platforms allow applications to meet fluctuating levels of demand through automatic horizontal scaling. These deployment models are characterized by short-lived applications running in resource-constrained environments. This amplifies the ...

With the growing amount of data processed in the virtual environment, many researchers focus their efforts on optimizing the load distribution on data centers according to various criteria. In this article, we propose optimization at the network ...

Copying values or references is historically studied for managing memory objects, especially on distributed systems. In this paper, we are exploring a new field of copying values v.s. references: memory page compaction on virtualized systems. Memory page ...

Lightweight virtual machines (VMs) are prominently adopted for improved performance and dependability in cloud environments. To reduce boot up times and resource utilisation, they are usually "pre-baked" with only the minimal kernel and userland ...

Address space layout randomization (ASLR) is a widely used component of computer security aimed at preventing code reuse and/or data-only attacks. Modern kernels utilize kernel ASLR (KASLR) and finer-grained forms, such as functional granular KASLR (...

Cloud computing is growing massively in the world of information technology. As a result of which the number of servers and virtual machines is increasing day by day. It leads to huge energy consumption and carbon emission. In this regard, task ...

Data centers store the necessary data for the operation of services and applications used by users. They usually consist of many physical servers connected to each other, with virtual machines and other systems, applications, databases installed. ...

With the ever-increasing pervasiveness of the cloud computing paradigm, strong isolation guarantees and low performance overhead from isolation platforms are paramount. An ideal isolation platform offers both: an impermeable isolation boundary while ...

Virtual machine performance tuning for a given application is an arduous and challenging task. For example, parametrizing the behaviour of the JIT compiler machine code caches affects the overall performance of applications while being rather obscure ...

Testing and debugging a Virtual Machine is a laborious task without the proper tooling. This is particularly true for VMs with JIT compilation and dynamic code patching for techniques such as inline caching. In addition, this situation is getting worse ...

In this manuscript, an upgraded Fruit Fly Optimization Algorithm (FFOA) is proposed for optimising task scheduling and resource management processes. The proposed FOA algorithm is utilized to address the issues. In the proposed algorithm, every ...

WebAssembly is designed to be an alternative to JavaScript that is a safe, portable, and efficient compilation target for a variety of languages. The performance of high-level languages depends not only on the underlying performance of WebAssembly, but ...

Public clouds are inherently multi-tenant: applications deployed by different parties (including malicious ones) may reside on the same physical machines and share various hardware resources. With the introduction of newer hypervisors, containerization ...

Cloud computing offers a vast number of processing opportunities and heterogeneous resources and meets the requirements of numerous applications at various levels. Thus, the allocation and management of resources are vital in cloud computing. Resource ...

To meet rising demands for computing resources, information technology service providers need to select cloud‐based services for their vitality and elasticity. Enormous numbers of data centres are designed to meet customer needs. Burning up energy by data ...

Virtual machines migration is an essential feature of virtualisation technology which brings many advantages in cloud computing management process such as proactive fault tolerance, load balancing, and power management. There have been many virtual ...