atrace和systrace的基本使用方法

1 atrace

adb shell进入设备：atrace --list_categories

         gfx - Graphics
       input - Input
        view - View System
     webview - WebView
          wm - Window Manager
          am - Activity Manager
          sm - Sync Manager
       audio - Audio
       video - Video
      camera - Camera
         hal - Hardware Modules
         res - Resource Loading
      dalvik - Dalvik VM
          rs - RenderScript
      bionic - Bionic C Library
       power - Power Management
          pm - Package Manager
          ss - System Server
    database - Database
     network - Network
         adb - ADB
    vibrator - Vibrator
        aidl - AIDL calls
         pdx - PDX services
       sched - CPU Scheduling
         irq - IRQ Events
         i2c - I2C Events
        freq - CPU Frequency
        idle - CPU Idle
        disk - Disk I/O
         mmc - eMMC commands
        load - CPU Load
        sync - Synchronization
       workq - Kernel Workqueues
  memreclaim - Kernel Memory Reclaim
  regulators - Voltage and Current Regulators
  binder_driver - Binder Kernel driver
  binder_lock - Binder global lock trace
   pagecache - Page cache

https://www.cnblogs.com/liuliu-word/p/9963017.html
https://www.cnblogs.com/pyjetson/p/14946007.html
adb shell "atrace camera -b 20480 -t 5" > atrace
atrace抓取camera调用流程，缓存20480KB，抓取5s。
看了下，是抓cameraserver进程以及camerahalserver进程的调用流程，很有用!

2 systrace

systrace：Android的trace数据分析工具，将atrace采集上来的数据，以图形化的方式展现出来。
https://blog.csdn.net/chaihuasong/article/details/109764573
python systrace.py -h
python systrace.py --from-file atrace -o systrace.html 
手动下载android sdk，使用里面的systrace.py等相关文件。见3 附件。
https://blog.csdn.net/qq_42391248/article/details/101781994
https://www.cnblogs.com/wpgraceii/p/10649331.html
经验证，手动下载的android sdk里systrace工具可用！
python systrace.py --from-file atrace -o systrace.html

看systrace常用快捷键：
w 扩展
s 压缩
m 选中当前session区间；ctrl+选中多个，再m，可选中多个区间看span
鼠标点击拖动，左移，右移
ctrl+鼠标滚轮，放大字体，缩小字体

3 附件

https://download.csdn.net/download/u012906122/76482104?spm=1001.2014.3001.5503