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The phenomenon of operating system (OS) Jitter has been investigated and considered a critical factor in high-performance computing. In this paper we model and simulate the effects of different sources of OS Jitter in the Linux operating system. We adopt the design of experiments approach to conduct experiments statistically planned. Our simulation models corroborate the results obtained experimentally...
Software aging (i.e. progressive performance degradation of long-running software systems) is difficult to detect due to the long latency until it manifests during program execution. Fast and accurate detection of aging is important for eliminating the underlying defects already during software development and testing. Also in a deployment scenario, aging detection is needed to plan mitigation methods...
The operating system (OS) Jitter phenomenon has been considered an import and critical factor in high-performance distributed computing. In this paper, we present the results of an experimental study that quantifies the effects of different sources of OS Jitter in the Linux operating system. We use the design of experiments (DOE) method to conduct controlled experiments statistically planned. Different...
The overhead caused by system calls in many applications has motivated research works focusing on reducing their execution costs. In this work we implement three types of compound system calls, which are evaluated experimentally by taking into account their execution time in systems with one up to eight cores. We also investigate the system calls running in both physical and virtual machines. All...
In this paper we present an experimental comparative study of most of the rejuvenation techniques developed so far, divided into two groups: i) simple approaches: physical node reboot (switch off/on), VM reboot, OS reboot and standalone application restart, and ii) sophisticated methods: OS fast reboot, and application restart with hot standby mode. In our experiments we evaluate the availability...
The high use of system calls in many applications has motivated research works focusing on reducing the overhead caused by these calls. In this work we implement three types of compound system calls, which are evaluated experimentally by taking into account their execution time in systems with 1 to 8 cores. We also investigate the system calls running in both physical and virtual machines. All proposed...
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