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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 眼镜或者举着平板进入厂房。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。线程状态缺一段、进程名对不上、Track Event 只有 ID 没有名称时,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。丢失发...
dumpsys meminfo 显示进程内存上涨,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 ...
While most fans in the stands at Madison Square Garden are looking forward to the New York Knicks lifting their first NB...
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 ...











