Android：高通平台性能调试

1.GPU / CPU 信息打印脚本

gpu_cpu_info.bat

@echo off echo "==================GPU======================" echo Used / Total： adb shell cat /sys/class/kgsl/kgsl-3d0/gpubusy echo Utilization rate: adb shell cat /sys/class/kgsl/kgsl-3d0/gpu_busy_percentage echo Max frequencies： adb shell cat /sys/class/kgsl/kgsl-3d0/devfreq/max_freq echo Min frequencies： adb shell cat /sys/class/kgsl/kgsl-3d0/devfreq/min_freq echo Available frequencies： adb shell cat /sys/class/kgsl/kgsl-3d0/gpu_available_frequencies echo Current frequencies： adb shell cat /sys/class/kgsl/kgsl-3d0/devfreq/cur_freq echo Available governors： adb shell cat /sys/class/kgsl/kgsl-3d0/devfreq/available_governors echo Governors： adb shell cat /sys/class/kgsl/kgsl-3d0/devfreq/governor echo "==================CPU======================"
echo Available frequencies：
adb shell cat  echo Max frequencies： adb shell cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq echo Min frequencies： adb shell cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq echo Current frequencies： adb shell cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq echo "===========================================" ping 127.0.0.1 -n 3 > nul %0 @循环执行脚本 pause

 

2.进程/线程 性能信息：

1.打印进程的堆栈信息。从堆栈信息里能够经过.so辨别哪一个线程是干什么的，从而在 top -t 的结果里去查找你想要的那个线程的 CPU 使用状况。 # debuggerd -b <pid>

2.查看某个进程里全部线程 # ps -A | grep camera

cameraserver   642     1  176344  50940 binder_ioctl_write_read 0 S android.hardware.camera.provider@2.4-service_64 cameraserver 902     1   40100  18452 binder_ioctl_write_read 0 S cameraserver

# ps -T 642

USER PID TID PPID VSZ RSS WCHAN ADDR S CMD cameraserver 642   642     1  176344  50940 binder_io+          0 S provider@2.4-se cameraserver 642   718     1  176344  50940 poll_sche+          0 S provider@2.4-se cameraserver 642   754     1  176344  50940 futex_wai+          0 S SyncManager_0 cameraserver 642   755     1  176344  50940 poll_sche+          0 S provider@2.4-se cameraserver 642  1535     1  176344  50940 futex_wai+          0 S provider@2.4-se cameraserver 642  1547     1  176344  50940 futex_wai+          0 S provider@2.4-se cameraserver 642  1549     1  176344  50940 futex_wai+          0 S provider@2.4-se cameraserver 642  1550     1  176344  50940 futex_wai+          0 S provider@2.4-se cameraserver 642  1551     1  176344  50940 futex_wai+          0 S provider@2.4-se cameraserver 642  1552     1  176344  50940 futex_wai+          0 S provider@2.4-se cameraserver 642  1553     1  176344  50940 futex_wai+          0 S provider@2.4-se cameraserver 642  1554     1  176344  50940 futex_wai+          0 S provider@2.4-se cameraserver 642  1555     1  176344  50940 poll_sche+          0 S provider@2.4-se cameraserver 642  1562     1  176344  50940 poll_sche+          0 S provider@2.4-se cameraserver 642  1582     1  176344  50940 binder_io+          0 S HwBinder:642_1 cameraserver 642  1583     1  176344  50940 binder_io+          0 S HwBinder:642_2 cameraserver 642  1584     1  176344  50940 binder_io+          0 S HwBinder:642_3 cameraserver 642  1585     1  176344  50940 binder_io+          0 S HwBinder:642_4 cameraserver 642  4586     1  176344  50940 poll_sche+          0 S HwBinder:642_1

　查看该进程ION Buffer状况：
　# cat /sys/kernel/debug/dma_buf/dmaprocs | grep 642

provider@2.4-se (PID 642) size: 315848 dmabuf642 2544            3

3.查看线程内存占用和CPU使用率 # top 参数含义：

PID  进程号

USER 用户名

PR   优先级

NI   nice值。负值表示高优先级，正值表示低优先级m  

RES  进程使用的、未被换出的物理内存大小，单位kb 

SHR  共享内存大小，单位kb

S    进程状态。
 D=不可中断的睡眠状态
 R=运行
 S=睡眠
 T=跟踪/中止

 Z=僵尸进程

%CPU  CPU使用率 

%MEM     进程使用的物理内存百分比

TIME+    进程使用的CPU时间总计，单位1/100秒

 

4.查看指定程序（mediaserver）内存使用状况 # dumpsys meminfo mediaserver 　　dumpsys [options]             meminfo 显示内存信息              cpuinfo 显示CPU信息              account 显示accounts信息              activity 显示全部的activities的信息              window 显示键盘，窗口和它们的关系              wifi 显示wifi信息