Scientific Programming / 2016 / Article / Fig 12

Research Article

Detection of Common Problems in Real-Time and Multicore Systems Using Model-Based Constraints

Figure 12

Unexpected kernel work while tracing an userspace-only application.
(a) Screenshot of Trace Compass showing the period between two “npt:loop” events in the application
(b) Kernel events traced between the two “npt:loop” events showing kernel tasks running while the application is waiting to continue its work, causing latency

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