I have tried looking at this SO post but I already have 16GB of RAM and I don't want to decrease AVD memory. I do not understand why the Android Emulator takes up so many resources (%25+ CPU, Almost 1GB of RAM) when running a simple app (Like this: Single Activity with a RecyclerView and its Adapter. That's it). Any help would be appreciated.
My fan is always on when using the Android Emulator in Android Studio.
This is normal for the Android Emulator. My numbers are the same.
This is a big pain for me and even bigger after upgrading the AndroidStudio version.
One alternative is to use an external Device for Debugging in place of an Emulator.
Related
Searched for a solution, didn't find anything helpful.
I have a GTX 970 and an i5 4690k OC 4.2 GHz.
The Emulator from Android Studio is lagging as hell and I don't know why.
Intel HAXM is installed, 4G Ram is allocated to the Android Device. I just can't find a solution. Btw. I don't think my processor is too bad since I can run 2 VMs at once and the Emulator works fine on my XPS 15 9560 (i7 7700HQ & GTX 1050)
Does anyone have an idea what to do?
Config:
Also tried using Software for graphics emulation, much more slower. Btw for reference this runs in the background and doesn't seem to resolve:
The SDK used
CPU Usage:
Also, I installed the AVD also on the same system on Hackintosh:
CPU: 10% and works smoothly
Cut the RAM way back. There is no Android device of note that has 8GB of RAM. Something in the 1-2GB range should be fine.
Cut the VM heap way back. For example, my emulator images use 48-128MB, not 8GB.
If those don't help, experiment with a lower-resolution emulator (e.g., Nexus 4 1280x768) and see if that changes your results.
Fixed it! I did a random windows update to Version 1803 and now the emulator works perfectly! Thanks for all your suggestions and answers!
also think that the RAM settings are at fault ...
in particular the heap size matching the total capacity.
the default settings, which should run smooth(er) are:
CPU: 4 Cores (while available)
RAM: 1536MB
Heap: 384MB
also check background processes once, in particular AntiVirus with on-access scanner, etc. (some people have 2-3 of them installed); one of them is enough and if present, disable it once for a test. the emulator ordinary is much less of a memory hog than Android Studio with Gradle can be. if everything fails, the screenshot shows that there is one bank available, which could take 2 DIMM. booting another system from external media might also worth a try, in order to rule out the current OS install. and I also have that "preparing for setup" on one emulator image; that's nothing to worry about.
Could you try changing the OpenGL ES Renderer to Desktop Native OpenGL
And OpenGL ES API Level to Renderer Maximum
This made my emulator very responsive, almost 2x faster.
Like this picture
Also it might be worth mentioning that I set both my camera's to none.
I have been playing with optimizing my app, and I see that there are some general ideas on how much memory it should use... I'm running between 70-80Mb right now, is that a crazy number or just a little on the heavy side?
My second question is about the memory I am using. About 42Mb is taken up by graphics, whether I run the app with the layout graphics or run it without setting any views... any ideas on where to look? I feel like it is the theme, but I am not sure how to test that.
I've been searching for days to figure out why it uses so much and cannot figure it out. It remains constant regardless of which activity I am on, any ideas are welcome!
UPDATE:
I ended up running it on an emulator and got about 26Mb, more what I was expecting, but it runs at 70Mb with the 42Mb of graphics on the actual device.
The emulator allows for a 384Mb app after getting memoryclass information, while the device only allows 256Mb... the emulator has more storage and runs more efficiently.
The emulator is Android 8.1 27api while the device is Android 7.0 24api.
Tried on an older Android 5.1.1 api 22 below also.
Any ideas?
I have another question with about why the emulators have a such a difference in performance here if you know the answer on that, but I wanted to keep these questions separate: Other Question
Android Studio has an awesome tool called Memory Profiler. It helps you analyze possible memory leaks and see which calls are using up the most memory. You can even pause the processor and 'zoom in' to deep dive on the call stack.
You can use LeakCanary A memory leak detection library for Android and Java. Maintain by Square. This is one of the best developer's Tool for memory optimization and detecting leaks.here
I have used Eclipse to write apps for android multiple times without issue but I am now trying the new Android Studio which I like but here is my problem.
When I run the app I pick my AVD and then tell it to start. The emulator starts loading and then says paired. Then it starts telling me to swipe up and left and right to display and remove cards. Then it says to put hand on screen to dim the screen, ok well I'm on a MacBook Pro so that don't work I swipe to get past that part sometime I can others I can't. Next it says to touch the clock and say some words which also can't do on my Mac, and that is where the emulator stay it never goes to a home screen and it does this no matter what AVD I choose. How can I get the Emulator to just plain open to the home screen like it should.
Thanks for any help.
In your AVD Manager, edit your AVD and make sure your Target is "Android L" and not "Android X.XW". The "W" stands for "wear" and that is causing your issue.
Alright I figured it out. I remember having a similar problem recently when I was taking an android development class for college using eclipse and sure enough that was it.
So here was the solution eclipse gave same problem. for some reason if you have caught exemptions such as hard coding a string etc. the emulator will not run till you ignore these exemptions or fix every last ! mark in your code. Once you do this the emulator will load and run properly.
I also had the same problem with my AVD. The Android Emulator window just used to pop us and the green bars flowed infinitely. After lots of trial and error I arrived at a solution for my problem. the problem was with the Heap size and the RAM size.
Initially the default heap size was 128 MB and RAM was 1563 , I just changed the heap size to 512 MB and reduced the RAM size( high RAM was making my PC run slow) also I enabled hardware acceleration. And Yipeee, it worked.
I am beginning android development using the latest versions of the android SDK and eclipse. I have followed the Hello Android Tutorial
and used every combination of targets available but the Emulator freezes on the load screen with the flashing "android" title.
I have checked the other related question and DID wait about 15 minutes. but still no change. Any help with this would be great. Thanks.
I had a similar issue, and still do sometimes today. Have you tried deleting the AVD and then re-creating it?
Also try changing some of the AVD's values, give it more ram, larger SD card. You can do this through Window > Android SDK and AVD Manager > Edit the AVD, and then add values / modify the SD card size.
EDIT: Also - just for reference, I have a Intel Core i7 with 16gb of RAM and AVD's STILL take forever to load.
EDIT: Another handy thing to know is that if you check the "Snapshot" option when editing the AVD, it will save the last state and load that instead of a full [slow] boot. Kind of like putting your computer to sleep.
Adding values / modify the SD card size may be better .
Try not to close the Android Emulator , to avoid re-open .
Yah android emulator takes time to start up, but it should start within 2-3 mins. Check your RAM and processor. The RAM must be atleast 1GB (preferably more) to speed up loading emulator.
Well? I've tried increasing the RAM size of the emulator to 1024 MB and there was little improvement on the speed, however, it's still unusable. It has the speed of a turtle.
Anyone got better ideas to make it faster? Is there something I'm not doing correctly?
Check out the android developer documentation regarding 3.0 emulator performance. Scroll down to About Emulator Performance.
Copied tip for convenience:
Tip: To improve the startup time for the emulator, enable snapshots for the AVD when you create it with the SDK and AVD Manager (there's a checkbox in the AVD creator to Enable snapshots). Then, start the AVD from the AVD manager and check Launch from snapshot and Save to snapshot. This way, when you close the emulator, a snapshot of the AVD state is saved and used to quickly relaunch the AVD next time. However, when you choose to save a snapshot, the emulator will be slow to close, so you might want to disable Save to snapshot after you've acquired an initial snapshot (after you close the AVD for the first time).
Seems like everything 3.0 and beyond is slow for me. Everything before that runs very fast in emulator for me. However, I have an Intel integrated graphics card in my laptop. When I turn 3D setting to "Application Settings," I get relatively decent performance from the emulator, at least when it starts up, but then when I try to start any app from the default main app menu (contacts, for example) I get launcher errors. That happens for me on 3.0, 3.1 and 3.2. The one thing I'm suspicious of is that I'm running 64-bit Java SDK. Seem to be a number of posts out there related to 64-bit, but mostly they seem to be point to using 64-bit SDK with 32-bit Eclipse or vice versa, but in my tests, I am not even running Eclipse, haven't even reinstalled the ADT yet, just the Android SDK and created a few emulator instances. Again, prior to 3.0 everything is fast. 3.0 and beyond not good, but A LOT better with graphics settings as I mentioned above. If I could get past the launcher issues, I think I might be all set. Oh, btw also, for 3.0 and beyond, I bumped the memory up to 1024. I've tried increasing the heap for apps to double the default (from 48 to 96) but that doesn't seem to have alleviated my launcher problems.
It is slow. You can try creating a new Emulator with a smaller resolution.
I remember someone at google I/O saying that the HoneyComb emulator will run really really slow due to hardware acceleration turned on.
The PC may use software rendering for OpenGL hence the bad performance. The almost everything you see on the HoneyComb screen is rendered using OpenGL ES.
감사합니다,
Reno