A Comparison of Counting and Sampling Modes of Using Performance Monitoring Hardware

A Comparison of Counting and Sampling Modes of Using Performan e Monitoring Hardware

EÆciency and Accuracy Issues for Sampling vs. Counting Modes of Performance Monitoring Hardware

Performance monitoring hardware is available on most modern microprocessors in the form of hardware counters and other registers that record data about processor events. This hardware may be used in counting mode, in which aggregate events counts are accumulated, and/or in sampling mode, in which time-based or event-based sampling is used to collect pro ling data. This paper discusses uses of t...

Accuracy of Performance Monitoring Hardware

Performance monitoring hardware is available on most modern microprocessors in the form of hardware counters and other registers that record data about processor events. This hardware may be used in counting mode, in which aggregate event counts are accumulated, and/or in sampling mode, in which time-based or event-based sampling is used to collect profiling data. This paper discusses uses of t...

The Intel Pentium 4’s Unique Performance-monitoring Features Overcome Many Limitations and Problems Found in Previous Processors. Pentium 4 Xeon Performance Monitoring Supports Simultaneous Multithreaded Execution

Most modern, high-performance processors have special, on-chip hardware that can monitor performance. The features of this monitoring hardware typically include event detectors and counters, qualification of event detection and counting by privilege mode and event characteristics, and support for event-based sampling. However, these features often suffer from a common set of problems including ...

Development of hardware system using temperature and vibration maintenance models integration concepts for conventional machines monitoring: a case study

This article describes the integration of temperature and vibration models for maintenance monitoring of conventional machinery parts in which their optimal and best functionalities are affected by abnormal changes in temperature and vibration values thereby resulting in machine failures, machines breakdown, poor quality of products, inability to meeting customers’ demand, poor inventory contro...