Lifecycle is a utility component which displays the execution time of each JSF phase.
It also synchronizes automatically after each AJAX request.
<div class="card">
<h:form>
<div class="p-mb-5">
<p:commandButton value="Dummy Ajax Request" update="@none" styleClass="p-mr-2" />
<h:commandButton value="Dummy Ajax Request">
<f:ajax render="@none"/>
</h:commandButton>
</div>
<p:lifecycle />
</h:form>
</div>