Using latency to evaluate interactive system performance
OSDI '96 Proceedings of the second USENIX symposium on Operating systems design and implementation
A comparison of Windows driver model latency performance on Windows NT and Windows 98
OSDI '99 Proceedings of the third symposium on Operating systems design and implementation
DROPS: OS support for distributed multimedia applications
Proceedings of the 8th ACM SIGOPS European workshop on Support for composing distributed applications
Putting the feel in ’look and feel‘
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
An Analysis of Perceptual Instability During Haptic Texture Rendering
HAPTICS '02 Proceedings of the 10th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems
Supporting time-sensitive applications on a commodity OS
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
| Hi-index | 0.01 |
Haptic interfaces require a consistent rate of force computation for stable high-frequency displays. This paper reports measurements of force computation consistency under Windows 2000 and XP in single- and dual-processor systems. The median time was accurate at 1 ms. However, as the computation in the force loop increased to 500 ms/iteration, release time jitter in the single-processor system increased up to 52%. Jitter was also introduced by network load. Contention from other real-time applications, such as audio and video display, dramatically increased the jitter, up to 100%. These high levels of jitter could perceptibly degrade force display for some tasks. Jitter was substantially lower for the dual-processor system. Haptic applications requiring consistent force computation should consider dualprocessor configurations.