Presentation
How to Steal CPU Idle Time When Synchronous I/O Mode Becomes Promising
DescriptionThe advent of ultra-low-latency storage devices has narrowed the performance gap between storage and CPU in computing platforms, facilitating synchronous I/O adoption. Yet, this approach introduces substantial busy waiting time and underutilizes computing units. To address this, we propose a light-weighted Idle-Time-Stealing (ITS) design. This involves a self-improving thread conducting pre-fetching for high-priority processes during synchronous I/O, and an I/O-waiting process continuing subsequent instruction executions when justifiable. Another thread, the self-sacrificing thread, proactively switches low-priority process I/O requests from synchronous to asynchronous mode, prioritizing high-priority executions. Experimental results demonstrate the effectiveness of our ITS design in reducing CPU idle time.
Event Type
Research Manuscript
TimeWednesday, June 265:15pm - 5:30pm PDT
Location3001, 3rd Floor
Embedded Systems
Embedded Software