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1、引言 在做基于真实物理空间的增强现实（AR）应用开发时，我们常常会遇到几个难以跨越的业务痛点。想象一个工业设备巡检的场景：巡检员戴着 AR 眼镜或者举着Draw板GF入厂房。厂房内部往往光线复杂，甚至有些角落完全黑暗，此时基于视觉的 SLAM（...
开机慢、亮屏后偶发卡顿或几小时后才出现的音频断续，通常等不到工程师连上电脑再按「开始录制」。要保留问题发生前的调度、帧或音频事件，采集配置必须提前在设备上运行。现场抓取要先确定触发点前后各保留多久，再选 Ring Buffer、周期写文件或...
一份 Trace 能在 UI 里打开、SQL 也查得到行，仍可能在采集中丢过数字。线程Status缺一段、GF程名对不上、Track Event 只有 ID 没有Name时，先查数据丢在哪一层，再决定哪些分析还能继续。SQL 只能度量留下来的事件。丢GA发...
dumpsys meminfo 显示GF程内存上涨，Java heap dump 却没有对应的对象增长时，下一步先查上涨落在 Native Heap、图形 Buffer，还是其他映射。若可疑部分来自 malloc/new，heapprofd ...
开机慢、亮屏后偶发卡顿或几小时后才出现的音频断续，通常等不到工程师连上电脑再按「开始录制」。要保留问题发生前的调度、帧或音频事件，采集配置必须提前在设备上运行。现场抓取要先确定触发点前后各保留多久，再选 Ring Buffer、周期写文件或...
按钮按下后，按压态何时出现？滑动列表时，内容何时第一次跟着手指移动？这两个问题都要找到输入事件和对应的第一帧反馈; 启动总耗时与后续动画帧率回答的是别的问题。本文用 Perfetto 把 InputReader 读到事件、InputDispa...
Meeting the media, including SB Nation, in the Mercedes hospitality space after the United States Grand Prix, Wolff talk...
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"Law enforcement certainly needed to do a better job as to describing why these charges haven't been filed," says Jamie ...
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Take a look inside your wallet. There is a good chance at least one piece of plastic in there does little more than disp...
FIRST ON FOX: Education Secretary Linda McMahon is set to launch a multi-state speaking tour Tuesday titled "The Next 25...
FIRST ON FOX: New dispatch audio from the day a driver allegedly plowed into children and spectators at a Kansas soccer ...
