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

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/sp/volume-2016/9792462/figures/9792462.fig.0012a.svgz" name="9792462.fig.0012a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Screenshot of Trace Compass showing the period between two “npt:loop” events in the application</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/sp/volume-2016/9792462/figures/9792462.fig.0012b.svgz" name="9792462.fig.0012b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </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</td></tr></table>

<div>Unexpected kernel work while tracing an userspace-only application.</div>

Scientific Programming

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Figure 12

Figure 12: Detection of Common Problems in Real-Time and Multicore Systems Using Model-Based Constraints 