-profiles/>configuration profile</a>.
This means that only 1 out of 100 trace instances captured by Istio will be reported to the tracing backend.
The sampling rate in the <code>demo</code> profile is still set to 100%. See
<a href=/v1.16/docs/tasks/observability/distributed-tracing/mesh-and-proxy-config/#customizing-trace-sampling>this section</a>
for more information on how to set the sampling rate.</p><p>If you still do not see any trace data, please confirm that your ports conform to the Istio <a href=/