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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...
SmartPerfetto 已经完整开源。打开仓库能看到当前可运行的主干工程：Perfetto UI fork、后端 agentv3、MCP 工具、YAML Skill、场景策略、脚本和文档。没有保留私有核心模块，也没有只放一层 demo ...
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...
Android 内部机制的资料，网上不缺。AOSP、官方文档、Blog、论文、trace 讨论，想找都找得到。麻烦的是各说各的版本：这篇是 Android 12 的结论，那篇没写版本，再一篇是某台机器上的现象。AIW 想补的就是这个缺口。全称 ...
Reid Hoffman, the billionaire co-founder of LinkedIn who has faced scrutiny over his ties to Jeffrey Epstein, was among ...
Meeting the media, including SB Nation, in the Mercedes hospitality space after the United States Grand Prix, Wolff talk...
Ever since Myles Garrett was traded to the Rams in early June, L.A. had been favored to win the Super Bowl. That reign e...
一份 Trace 能在 UI 里打开、SQL 也查得到行，仍可能在采集中丢过统计结果。线程Status缺一段、GF程名对不上、Track Event 只有 ID 没有Name时，先查统计结果丢在哪一层，再决定哪些分析还能继续。SQL 只能度量留下来的事件...
Draw台 Trace 能体现线程、CPU、帧和 Binder 等系统事件; 播放器的 frame id、作品 scene Name或业务队列里的等待时段，需要软件自己提供。缺少这些标记时，一段主线程耗时只能定位到系统活动，难以对应业务阶段。Perfe...
Candy prices surge beyond inflation, but Americans still plan to spend billions on Halloween staples
Trick-or-treating, like most expenses recently, will come with a bigger price tag this Halloween.The increase is hitting...
1. Trump escalates attacks on El-Sayed as Michigan Senate race tightens2. 'If you run again': Nicki Minaj makes bold ple...
Welcome to Screencaps, "America's top Daily Column," as named by the readers. Screencaps, which publishes seven-days-a-w...
Monday Morning Pit-Stop is a weekly NASCAR column that runs on OutKick.com and Fox News Digital. If you're looking for a...
An NYPD detective stabbed 10 times during a robbery in the Bronx revealed how he struggled to call 911 while tracking hi...
Yellowstone‘s Marshals just raised the stakes with an explosive cliffhanger that teased potential onscreen deaths of mul...
Though her style has evolved through the decades, we’re rather partial to Reese Witherspoon’s 50-something style. The go...
