adb 调试命令

ADB：Android Debug Bridge。

这里性能调试如下：

性能测试需要进行如下设置：

如果要让user模式能够进行root操作，需要更改(system/core/adb/adb.c) 将无用的log信息去掉，#define LOG_NIDEBUG 0如果调试Web的用户体验，需要wifi已经能够正常工作

以下命令将设备进入性能模式

将DDR进入性能模式

adb shell echo 400000000 > /sys/class/kgsl/kgsl-3d0/gpuclk adb shell echo performance > /sys/class/kgsl/kgsl-3d0/devfreq/governor adb shell echo performance >/sys/class/devfreq/qcom,cpubw.30/governor（不同的设备可能会有差异）

读取交互模式cpu频率管理器参数

adb shell cat /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay adb shell cat /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load adb shell cat /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq adb shell cat /sys/devices/system/cpu/cpufreq/interactive/target_loads adb shell cat /sys/devices/system/cpu/cpufreq/interactive/min_sample_time adb shell cat /sys/devices/system/cpu/cpufreq/interactive/boost adb shell cat /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration adb shell cat /sys/devices/system/cpu/cpufreq/interactive/io_is_busy adb shell cat /sys/devices/system/cpu/cpufreq/interactive/timer_rate adb shell cat /sys/devices/system/cpu/cpufreq/interactive/timer_slack

禁止内核thermal

adb shell echo 0 > /sys/module/msm_thermal/core_control/enabled

通过无线adb调试

1. Connect a USB and verify that Wi-Fi is working on the device. – adb tcpip 5555 – adb shell netcfg – <output> wlan0 UP 10.42.118.17/22 0x00001043 f0:25:b7:f5:02:81 – adb connect 10.42.118.17 # In Wi-Fi settings, click the Wi-Fi network name to get the IP. 2. Remove the USB and try adb devices. 3. To end the session: – adb disconnect

GPU性能调试

将GPU进入性能模式

adb shell echo 0 > /sys/class/kgsl/kgsl-3d0/bus_split adb shell echo performance > /sys/class/kgsl/kgsl-3d0/devfreq/governor adb shell echo 1 > /sys/class/kgsl/kgsl-3d0/force_bus_on adb shell echo 1 > /sys/class/kgsl/kgsl-3d0/force_rail_on adb shell echo 1 > /sys/class/kgsl/kgsl-3d0/force_clk_on adb shell echo 1000000 > /sys/class/kgsl/kgsl-3d0/idle_timer

通过adb查看每秒滚屏数

1. adb pull /system/build.prop 2. Enable the properties debug.gr.calcfps = 1 and debug.gr.calcfps.period = 1 in the build.prop file and save the file. adb push build.prop /system/ adb shell chmod 0644 /system/build.prop adb shell sync adb shell reboot 3. Enable the FPS calculation (and display the distribution of frame arrival times) by setting debug.gr.calcfps = 2. 4. Grep for FPS in logcat.

检查设备layer的组成和层数

1. Get the adb shell dumpsys SurfaceFlinger log. 2. Search for lines similar to those highlighted in the following log: numHwLayers=4, flags=00000000 type | handle | hints | flags | tr | blend | format | source crop | frame name ------------+----------+----------+----------+----+-------+----------+---------------------------+--------- HWC | b71a1610 | 00000000 | 00000004 | 00 | 00100 | 00000002 | [ 160, 25, 480, 480] | [ 0, 25, 320, 480] com.android.systemui.ImageWallpaper HWC – MDP composition GLES – GPU composition During transition, the log sometimes shows HWC and GLES, which is Mixed mode composition.