摘要
Consistency maintenance is a kernel problem in Collaborative VirtualEnvironment (CVE) research. The approaches used in Networked Virtual Environments (e.g., DRalgorithm) could not be used in CVEs, for they could not prevent short-term inconsistency.Therefore, local-lag mechanism has been proposed to eliminate short-term inconsistency in CVEs.Choosing a proper lag value is a key problem in local-lag mechanism. This paper studied the effectsof lag value (0ms-900ms) on task performance in a desktop CVE system. Experimental results indicatethat the effect of lag value on task performance is not linear. The effect could be separated intofour segments by three dividing points: 150ms, 300ms and 600ms. Lag has no effect on taskperformance while ranging from 0ms to 150ms. From 150ms to 300ms, lag slightly affects taskperformance. Lag deteriorates task performance seriously while ranging from 300ms to 600ms. When lagis longer than 600ms, the task cannot be accomplished sometimes.
Consistency maintenance is a kernel problem in Collaborative VirtualEnvironment (CVE) research. The approaches used in Networked Virtual Environments (e.g., DRalgorithm) could not be used in CVEs, for they could not prevent short-term inconsistency.Therefore, local-lag mechanism has been proposed to eliminate short-term inconsistency in CVEs.Choosing a proper lag value is a key problem in local-lag mechanism. This paper studied the effectsof lag value (0ms-900ms) on task performance in a desktop CVE system. Experimental results indicatethat the effect of lag value on task performance is not linear. The effect could be separated intofour segments by three dividing points: 150ms, 300ms and 600ms. Lag has no effect on taskperformance while ranging from 0ms to 150ms. From 150ms to 300ms, lag slightly affects taskperformance. Lag deteriorates task performance seriously while ranging from 300ms to 600ms. When lagis longer than 600ms, the task cannot be accomplished sometimes.
基金
浙江省自然科学基金
