如何结合trace，分析卡顿率指标异常问题
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下载并打开trace后，通过上报的Present ID字段搜索，可快速定位问题点。

![](https://contentcenter-vali-drcn.dbankcdn.cn/pvt_2/DeveloperAlliance_scene_100_1/e9/v3/r67NRDOgQAafVVy1nDAMrg/zh-cn_image_0000002229758405.png?HW-CC-KV=V1&HW-CC-Date=20260612T074832Z&HW-CC-Expire=86400&HW-CC-Sign=673A390662AD9D458864F7E25A1C695442598D6875A18058E43B45C439209CE9 "点击放大")

![](https://contentcenter-vali-drcn.dbankcdn.cn/pvt_2/DeveloperAlliance_scene_100_1/23/v3/eiiC-jlvTVCvgnGZGbFdKA/zh-cn_image_0000002194318144.png?HW-CC-KV=V1&HW-CC-Date=20260612T074832Z&HW-CC-Expire=86400&HW-CC-Sign=BD194D12100658FB32F7B741CFF82D9EAB8A63363DD9B975A97F5C48B3DAFB4D "点击放大")

上图中，99009这一帧在屏幕上持续了33ms，超出应持续的16.6ms，被统计为丢1帧。