We describe the diagnosis and treatment of bottlenecks in computer systems using decison theoretic techniques. The techniques rely on a high-level functional model of the interaction between application workloads, the operating system (Windows NT), and system hardware. Given a workload description, the model predicts the values of system counters observable with the Windows NT performance monit...

The performance of a manufacturing or logistic system is determined by its constraints. Therefore, in order to improve the performance, it is necessary to improve the constraints, also known as the bottlenecks. Finding the bottlenecks, however, is not easy. This paper compares the two most common bottleneck detection methods, based on the utilization and the waiting time, with the shifting bott...

There are numerous different bottleneck detection methods both in academia and in industry. However, most do not take the shifting of bottlenecks into account. This paper compares a number of methods, namely methods based on cycle times and utilizations, waiting times and queue lengths, the arrow method, the turning point method, the active period method, and the bottleneck walk. All methods ar...

A global definition of bottleneck degree is first proposed by introducing an exponential function, the value of bottleneck degree for each working station can be obtained through real time calculation and compared, based on which a new method of exponential dynamic bottleneck detection (EDBD) is presented. This method provides an efficient means for bottleneck detection. Experiments under light...

This paper endeavors to present a scheme to detect and estimate bottleneck bandwidth along the path in the Internet. We have participated in the RIPE NCC’s TTM project to perform one-way delay (OWD) and loss measurement from a host in our laboratory to other hosts in Europe and USA. TTM is an active measurement system, which has implemented the IPPM one-way delay (RFC2679) and one-way loss metr...

Buffers decouple fluctuations in the material flow. It is common wisdom in industry that a full buffer indicates a downstream bottleneck and an empty buffer indicates an upstream bottleneck. Numerous different bottleneck detection methods use this approach to detect the bottlenecks. However, so far this common wisdom on the shop floor has not yet been verified academically. The authors tested t...

Early detection of Alzheimer's Disease (AD) and its prodromal state, Mild Cognitive Impairment (MCI), is crucial for providing suitable treatment preventing the disease from progressing. It can also aid researchers clinicians to identify early biomarkers minister new treatments that have been a subject extensive research. The application deep learning techniques on structural Magnetic Resonance...