message: Fix CPU usage query. This should be more accurate.
diff: @@ -161,7 +161,7 @@ export const ClusterOverviewPage = props => {
  </div>
  <div className="row">
  <div className="col-lg-3 col-md-6">
  - <Gauge title="CPU Usage" query={'sum(rate(node_cpu{mode!="idle"}[2m])) * 100'} />
  + <Gauge title="CPU Usage" query={'100 - (sum(rate(node_cpu{job="node-exporter",mode="idle"}[2m])) / count(node_cpu{job="node-exporter", mode="idle"})) * 100'} />
  </div>
  <div className="col-lg-3 col-md-6">
  <Gauge title="Memory Usage" query={'((sum(node_memory_MemTotal) - sum(node_memory_MemFree) - sum(node_memory_Buffers) - sum(node_memory_Cached)) / sum(node_memory_MemTotal)) * 100'} />
  