Pressure stall metrics

<div class="stage" data-phase="0"><div class="title">SAME UTILIZATION · DIFFERENT WAIT</div><div class="comparison"><div class="panel node">NODE A<div class="bar"><i></i></div><span>CPU 65% · low wait</span></div><div class="panel node b">NODE B<div class="bar"><i></i></div><span>CPU 65% · low wait</span></div></div><div class="sub">pressure reveals contention</div></div>

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