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="mb-5">
            <p:commandButton value="Dummy Ajax Request" update="@none" process="@form" styleClass="mr-2" />
            <h:commandButton value="Dummy Ajax Request">
                <f:ajax render="@none" execute="@form" />
            </h:commandButton>
        </div>
        <p:lifecycle />
    </h:form>
</div>