l"><img class=element-to-stretch src=/v1.15/zh/docs/tasks/observability/metrics/querying-metrics/prometheus_query_result_graphical.png alt="Prometheus 查询结果 - Graphical"></a></div><figcaption>Prometheus 查询结果 - Graphical</figcaption></figure><p>其他查询尝试：</p><ul><li><p>请求 <code>productpage</code> 服务的总次数：</p><pre><code class=language-plain data-expandlinks=true data-repo=istio>istio_requests_total{destination_service=&#34;productpage.default.svc.cluster.local&#34;}
