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Life-time learner's blog
By default Android emulator is extremely slow. It takes 5 minutes to start the emulator!
To make it faster there are two approaches:
There is a pretty detailed Stackoverflow answer regarding HAXM and Android emulator performance.
Unfortunately, my old laptop didn’t support Intel virtualisation technology, so I didn’t even consider working with emulator. Instead, I always used a physical android device to test my apps.
When I started the emulator on Mac, I hoped it would run much faster (with SSD and Intel Core i7 on board). But no – the emulator was still very slow. This brought me to Stackoverflow, where they discussed how to enhance the speed of Android emulator by installing HAXM.
So, I tried to make the emulator on freshly installed Mac OS X 10.0 Yosemite run faster. I followed the instructions provided in the article, but at the end of installation, I got error message, saying that my laptop supports virtualisation, but VT-x is disabled.
According to Apple official specs, all latest macs that are running on Intel CPUs, have VT-x feature enabled by default. It might seen as disabled by the HAXM Installation Manager for two reasons:
As I didn’t have any other emulators or virtual machines running, I decided to find a way to make it work. And after some googling, I finally found a solution. According to the blog post I found, there was an issue with an incorrectly signed kernel extension on Intel’s part. I believe Intel will fix it soon, but for now as a workaround, we can use the following command:
sudo nvram boot-args="kext-dev-mode=1"
kexts to run in dev mode and disables all signing checks. Changes will take affect after system restart.