High CPU usage with Android emulator (qemu-system-i386.exe)

Question

The emulator qemu-system-i386.exe cpu usage almost constantly running between 7~9

Android studio 2.1 Android SDK Tools: 25.1.3 Host Operating System: Windows 7 - i7

Answer 1

I wasn't able to shut the audio off with the config.ini file, but only with the -noaudio cmd line argument to qemu. However, with Android Studio 3.2, you can't add custom arguments to the emulator, so I made this:

In the emulator dir of the Android SDK, in my case ~/Android/Sdk/emulator/

mv emulator emulator.orig

Make a bash script called emulator with the content:

#!/bin/bash

DIR=`dirname "$0"`

$DIR/emulator.orig -noaudio $*

Then:

chmod +x emulator

Now, the argument -noaudio will be added to all invocations of emulator from Android Studio and will save you a lot of CPU cycles.