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I need to add hw.audioInput=no hw.audioOutput=no to every AVD I create. Otherwise, the Android Emulator uses 100% CPU all the time, even when it's been idle f

by kaixi 6y ago

I need to add hw.audioInput=no hw.audioOutput=no to every AVD I create. Otherwise, the Android Emulator uses 100% CPU all the time, even when it's been idle for minutes. I'm far from the only one having the problem, see https://stackoverflow.com/questions/37063267/high-cpu-usage-with-android-emulator-qemu-system-i386-exe https://stackoverflow.com/questions/37063267/high-cpu-usage-... I'm on a Macbook Air 2014, Intel i5, 8GB of RAM, 500GB SSD. Hardware acceleration, etc. all enabled.

lfy_google 6y ago
Interesting, sounds like a live loop in some audio thread somewhere. What's your audio setup and AVD config.ini? I might be able to reproduce on my Mac.
lfy_google 6y ago
And here's the promised emulator build (from aemubins gmail account that we use to distribute debug binaries like this): https://drive.google.com/open?id=1sXEQcoiNpe3Lj8yeaKLasTjqlGQwy4Oi If you still don't get symbols from that it should be possible to build the emulator itself on macos: install repo from depot_tools https://www.chromium.org/developers/how-tos/install-depot-tools https://www.chromium.org/developers/how-tos/install-depot-to... pip install absl-py pip install urlfetch mkdir emu cd emu repo init -u https://android.googlesource.com/platform/manifest -b emu-master-dev --depth=1 repo sync -qcj 4 cd external/qemu python android/build/python/cmake.py # run objs/emulator -avd avdName -no-snapshot Debugging: # when it spins: # method 1: go to activity monitor -> sample process, send over the result # method 2: lldb lldb process attach --pid <pid-of-qemu-system-<arch>> bt all #send it over # method 3: guest process taking CPU adb shell top
- kaixi 6y ago
  Sorry, I'm not an expert. What am I supposed to do with the emulator-symbols.zip?
  - lfy_google 6y ago
    Replace your current emulator install; delete $ANDROID_SDK_ROOT/emulator then unzip it there so theres $ANDROID_SDK_ROOT/emulator again. $ANDROID_SDK_ROOT, if not set, should be set to the SDK location in Android Studio > Preferences > Android SDK (SDK path will show up there). Set it in your ~/.bash_profile too so it's there next time for running the emulator from the command line. The AVD config.ini can be found in ~/.android/avd/nameofAvd.avd/config.ini .

by kaixi 6y ago

lfy_google 6y ago

Interesting, sounds like a live loop in some audio thread somewhere. What's your audio setup and AVD config.ini? I might be able to reproduce on my Mac.

lfy_google 6y ago

And here's the promised emulator build (from aemubins gmail account that we use to distribute debug binaries like this): https://drive.google.com/open?id=1sXEQcoiNpe3Lj8yeaKLasTjqlGQwy4Oi If you still don't get symbols from that it should be possible to build the emulator itself on macos: install repo from depot_tools https://www.chromium.org/developers/how-tos/install-depot-tools https://www.chromium.org/developers/how-tos/install-depot-to... pip install absl-py pip install urlfetch mkdir emu cd emu repo init -u https://android.googlesource.com/platform/manifest -b emu-master-dev --depth=1 repo sync -qcj 4 cd external/qemu python android/build/python/cmake.py # run objs/emulator -avd avdName -no-snapshot Debugging: # when it spins: # method 1: go to activity monitor -> sample process, send over the result # method 2: lldb lldb process attach --pid <pid-of-qemu-system-<arch>> bt all #send it over # method 3: guest process taking CPU adb shell top

kaixi 6y ago
Sorry, I'm not an expert. What am I supposed to do with the emulator-symbols.zip?
- lfy_google 6y ago
  Replace your current emulator install; delete $ANDROID_SDK_ROOT/emulator then unzip it there so theres $ANDROID_SDK_ROOT/emulator again. $ANDROID_SDK_ROOT, if not set, should be set to the SDK location in Android Studio > Preferences > Android SDK (SDK path will show up there). Set it in your ~/.bash_profile too so it's there next time for running the emulator from the command line. The AVD config.ini can be found in ~/.android/avd/nameofAvd.avd/config.ini .