System Monitoring with lo2s: Power and Runtime Impact of C-State Transitions

Research output: Contribution to conferencesPaperContributedpeer-review


In this paper, we present improvements to the low-overhead performance monitoring tool lo2s. We combine a detailed recording of system events with information from a high-resolution power measurement, to record the scheduling of applications and C-state transitions. These sub-millisecond transitions are difficult to observe with traditional approaches. Our methodology provides us with insights into the behavior of the system before, during, and after C-state transitions of processors cores.


Original languageEnglish
Publication statusPublished - 2018

External IDs

Scopus 85052219086
ORCID /0009-0003-0666-4166/work/151475573
ORCID /0000-0002-5437-3887/work/154740501



  • 2018, HAEC, lo2s, performance analysis