[GH-ISSUE #23] emulator first time boot is about 20 minutes #14

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opened 2026-03-01 15:39:18 +03:00 by kerem · 3 comments

kerem commented

2026-03-01 15:39:18 +03:00

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Originally created by @mehrdad-abdoli on GitHub (Jul 14, 2017).
Original GitHub issue: https://github.com/budtmo/docker-android/issues/23

Hi
the performance of docker especially the first time docker started is very slow and it takes about 20 minutes to start emulator
.
i have tested android 5.1 , 6 and 7.1.
my host is ubuntu 16 on digitalocean with 4cpu and 8G memory.

this is host VXT:
kvm-ok
INFO: /dev/kvm exists
KVM acceleration can be used

docker ps show docker unhealthly about 20 minutes

Originally created by @mehrdad-abdoli on GitHub (Jul 14, 2017). Original GitHub issue: https://github.com/budtmo/docker-android/issues/23 Hi the performance of docker especially the first time docker started is very slow and it takes about 20 minutes to start emulator . i have tested android 5.1 , 6 and 7.1. my host is ubuntu 16 on digitalocean with 4cpu and 8G memory. this is host VXT: kvm-ok INFO: /dev/kvm exists KVM acceleration can be used docker ps show docker unhealthly about 20 minutes

kerem closed this issue

2026-03-01 15:39:19 +03:00

kerem commented

2026-03-01 15:39:20 +03:00

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@budtmo commented on GitHub (Jul 14, 2017):

Hi @mehrdad-abdoli ,

thank you for opening this issue. could you join https://gitter.im/butomo1989/docker-android? we can discuss there so I will close this issue, because I think this issue is not related to the docker-image that I've already provided in README.md. I assume it might be other reason. but if it is because of the docker image, we can reopen this issue.

@budtmo commented on GitHub (Jul 14, 2017): Hi @mehrdad-abdoli , thank you for opening this issue. could you join https://gitter.im/butomo1989/docker-android? we can discuss there so I will close this issue, because I think this issue is not related to the docker-image that I've already provided in README.md. I assume it might be other reason. but if it is because of the docker image, we can reopen this issue.

kerem commented

2026-03-01 15:39:20 +03:00

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@ciekawy commented on GitHub (May 19, 2019):

I wonder if there was any conclusion on this one. Just tried to run docker-android on DO droplet yet have same experience of super slow execution. Was even able to deploy and launch an app yet everything seem to be some 20-50x slower than it should be ;)
I know this may be related to the KVM, womdering if there are any chances to improve the performance in simiar setup, ideally for DO

@ciekawy commented on GitHub (May 19, 2019): I wonder if there was any conclusion on this one. Just tried to run `docker-android` on DO droplet yet have same experience of super slow execution. Was even able to deploy and launch an app yet everything seem to be some 20-50x slower than it should be ;) I know this may be related to the KVM, womdering if there are any chances to improve the performance in simiar setup, ideally for DO

kerem commented

2026-03-01 15:39:20 +03:00

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@ciekawy commented on GitHub (May 19, 2019):

one thing I found thanks to https://www.blackhatworld.com/seo/script-turn-your-linux-vps-server-into-windows-server-automatically-using-shell-script.1097732/ is that nested=1 parameter passed to the kvm module makes a difference as only after adding this I am getting

$cat /sys/module/kvm_intel/parameters/nested
Y

I think it makes also just some difference to the performance - it is still poor but a bit better. I hope there may be some other steps to improve it further

@ciekawy commented on GitHub (May 19, 2019): one thing I found thanks to https://www.blackhatworld.com/seo/script-turn-your-linux-vps-server-into-windows-server-automatically-using-shell-script.1097732/ is that `nested=1` parameter passed to the kvm module makes a difference as only after adding this I am getting ``` $cat /sys/module/kvm_intel/parameters/nested Y ``` I think it makes also just some difference to the performance - it is still poor but a bit better. I hope there may be some other steps to improve it further