Android Studio - How to increase Allocated Heap Size

Question

I ve been using Android Studio for 3 months now and one of the apps I started on it has become fairly large   The memory usage indicated at the bottom right of the program says my allocated heap is maxed at 494M     When I start to change the XML files my memory usage quickly reaches that cap and the IDE crashes with an Out Of Memory error like this     I ve tried to increase the heap size using this but so far there has been no effect   I ve looked at dozens of articles and other questions on how to increase the heap size but none of their answers are working   No matter what I do to the VMOPTIONS or the IDE settings the heap size never increases   I believe I am editting the correct file for the VMOPTIONS because if I purposely give it an invalid command Android Studio complains about it and doesn t start    I m using windows 7 - 64 bit and have 16GB RAM  Has anyone else had this problem with Android Studio  And were you able to fix it

User · Answer

Had this Xms and Xmx memory low issue happen to me any time I was working with the XML  I also tried increasing this memory  only to find that it just took a little longer for it to happen again   After getting very frustrated and almost deciding to convert all my current projects back over to Eclipse  which I did not want to do  I figured out what was causing it and was able to repeat this failure and prevent it every time   While editing the XML in  Text view   and using the  Preview  render view  this causes the loss of memory  every time   Turning off  Preview  and using the Design tab to render the screen only  I am able to use Android Studio all day long  with no crash   I wish this could be fixed for good  because it would be very nice to use the  Preview  render while editing the XML  however I am glad I can keep using Android Studio

User · Answer

This is how you change the heap size currently in Android Studio 3 6 1  On Windows in your Android Studio    Select File -  Settings  the popup below will be displayed       Select Appearance  amp  Behavior  Select System Settings  Select Memory Settings    Then change the IDE Heap Size settings to your desired value  On Mac     Select Android Studio Select Preferences   The same pop up will appear  However  this time on the Mac its called Preferences   Follow the same steps as the Windows version of Android Studio to adjust the heap size wants the Preferences dialog has been displayed

User · Answer

If you are using MAC BOOK  this option is available inside Applications -  Right click Android Studio then choose Show Package contents -  bin     or  open -e  Applications Android  Studio app Contents bin studio vmoptions  Then increase Xmx value   -Xms128m -Xmx2048m -XX MaxPermSize 350m -XX ReservedCodeCacheSize 64m -XX  UseCodeCacheFlushing -XX  UseCompressedOops   Now your Android Studio will be super-fast

User · Answer

-------EDIT-------- Android Studio 2 0 and above  you can create edit this file by accessing  quot Edit Custom VM Options quot  from the Help menu  -------ORIGINAL ANSWER-------- Open file located at  Applications Android  Studio app Contents bin studio vmoptions  Change the content to -Xms128m -Xmx4096m -XX MaxPermSize 1024m -XX ReservedCodeCacheSize 200m -XX  UseCompressedOops  Xmx specifies the maximum memory allocation pool for a Java Virtual Machine  JVM   while Xms specifies the initial memory allocation pool  Your JVM will be started with Xms amount of memory and will be able to use a maximum of Xmx amount of memory  Save the studio vmoptions file and restart Android Studio  Note  If you changed the heap size for the IDE  you must restart Android Studio before the new memory settings are applied   source

User · Answer

First check how much memory allocated for your android studio  to check that follow this steps       File -  Settings- Appearance  amp  Behavior- Appearance   then check the show memory indicator option like below image red highlighted part   In my case my RAM is 12Gb so i have allocated memory for android studio 6gb  To edit that follow this steps  Help- Edit custom VM options  -Xmx6g   In my case  i have set it 6gb because my pc ram is 12 GB  Its upto you how much memory you want to allocate to your android studio

User · Answer

I looked at my Environment Variables and had a System Variable called  JAVA OPTIONS with the value -Xms256m -Xmx512m  after changing this to -Xms256m -Xmx1024m the max heap size increased accordingly

User · Answer

you are not supposed to modify the bin studio exe vmoptions file  which will be verified during applying update patch  Solutions are here http   tools android com tech-docs configuration copy that file into following location  then change the -Xmx1280m to whatever you want  Windows   USERPROFILE    FOLDER NAME  studio exe vmoptions and or  USERPROFILE    FOLDER NAME  studio64 exe vmoptions  USERPROFILE    FOLDER NAME  idea properties Mac    Library Preferences  FOLDER NAME  studio vmoptions   Library Preferences  FOLDER NAME  idea properties Linux      FOLDER NAME  studio vmoptions and or     FOLDER NAME  studio64 vmoptions     FOLDER NAME  idea properties

User · Answer

On Mac OSX one can easily change heap size by going to first menu item  Android Studio   preference   System Settings  left menu    Memory Settings and change heap size there in the dialog

User · Answer

On Ubuntu  it s straight forward  clicking Help  gt  Edit Custom VM Options   The IDE asks whether to create for you a file  click OK  An empty studio64 vmoptions file is create and paste the following variables  -Xms128m -Xmx4096m -XX MaxPermSize 1024m -XX ReservedCodeCacheSize 200m -XX  UseCompressedOops  Restart the IDE  the Max Heap Size is increased to  4 062M

User · Answer

Android Studio 3 1 has option to edit your customize virtual memory options    You can go Android Studio   Help   Edit Custom VM Options     Then paste below settings code to studio64 exe vmoptions file  amp  Save it   file location     Users username  AndroidStudio3    config    -Xms128m -Xmx4096m -XX MaxPermSize 1024m -XX ReservedCodeCacheSize 200m -XX  UseCompressedOops

User · Answer

May help someone that get this problem   I edit studio64 exe vmoptions file  but failed to save   So I opened this file with Notepad   in Run as Administrator mode and then saved successfully

User · Answer

Or  you can go to your android-studio bin folder and change these -Xmx and -Xms values in studio exe vmoptions or studio64 exe vmoptions files  depending on which version you are running

User · Answer

Open studio vmoptions and change JVM options  studio vmoptions locates at  Applications Android  Studio app bin studio vmoptions  Mac OS   In my machine  it looks like  -Xms128m -Xmx800m -XX MaxPermSize 350m -XX ReservedCodeCacheSize 64m -XX  UseCodeCacheFlushing -XX  UseCompressedOops   Change to  -Xms256m -Xmx1024m -XX MaxPermSize 350m -XX ReservedCodeCacheSize 64m -XX  UseCodeCacheFlushing -XX  UseCompressedOops   And restart Android Studio  See more Android Studio website

User · Answer

You should not edit any files in the IDE installation directory  Instead  you can customize the attributes by creating your own  properties or  vmoptions files in the following directories   This has been possible on some platforms before  but it required you to copy and change the entire contents of the files  With the latest changes these properties are now additive instead such that you can set just the attributes you care about  and the rest will use the defaults from the IDE installation     Note  As of Android Studio 2 0  you can create edit this file by accessing the  Edit Custom VM Options  file from the Help menu   http   tools android com tech-docs configuration

User · Answer

On Windows 7  the configuration files at  INSTALL-LOCATION  bin seem to be ignored  Per the following Google documentation  the file to be modified should be here   USERPROFILE   AndroidStudio studio 64  exe vmoptions   http   tools android com tech-docs configuration   Odd that there is no such file upon a clean install of Android Studio 1 1 from the developer site  And they are in the old  ignored  location  Once I copy the file  studio exe vmoptions in my case  over and modify it  the change is respected   However  the fun doesn t stop there  There s an upper value for -Xmx which may be related to the amount of memory in your system  I just bumped my machine s memory from 4Gb to 16Gb  and assumed I could set -Xmx to 2048m  but I found that if I set it to anything larger than 1500m  Android Studio would silently fail to launch with no indication at all as to why  I have more RAM on the way  so it will be interesting to see if I can increase the value at that point   I hope this additional information is helpful  While all of the above replies were undoubtedly true at one point  and may still be in some environments   I found that this was the only approach that increased the memory used by AS for me

User · Answer

You can try any one of the following 1 Change the gradle properties file and change the heap size as per your requirement  If org gradle jvmargs -Xmx2048M is not sufficient then change to 4096 as given org gradle jvmargs -Xmx4096M  2  quot Edit Custom VM Options quot  from the Help menu  It will open studio vmoptions   studio64 exe vmoptions file   Change the content to -Xms128m -Xmx4096m -XX MaxPermSize 1024m -XX ReservedCodeCacheSize 200m -XX  UseCompressedOops Save the the file and restart Android Studio

User · Answer

I tried the  JAVA OPTIONS thing but it wasn t working for me still   In the end  what worked for me was the following     Launching studio64 exe instead of the studio exe I ve got a 64-bits machine   Add Change the following values in  studio64 exe vmoptions      x000D   x000D  -Xms2048m x000D  -Xmx2048m x000D  -XX MaxPermSize 1024m x000D  -XX  CMSClassUnloadingEnabled x000D  -XX  CMSPermGenSweepingEnabled  x000D  -XX  HeapDumpOnOutOfMemoryError x000D  -Dfile encoding utf-8 x000D   x000D   x000D

User · Answer

IF by changing or creating the  studio exe vmoptions doesn t work  then try changing the gradle properties file and change the heap size as per your requirement   It really worked for me on my Windows 7 with 4Gb RAM and Android Studio 2 2 install on it   Working properly with no error and displaying  Gradle Sync complete

User · Answer

There are a lot of answers that are now outdated  The desired way of changing the heap size for Android Studio recently changed    Users should now create their own vmoptions file in one of the following directories   Windows   USERPROFILE    FOLDER NAME  studio64 exe vmoptions  Mac     Library Preferences  FOLDER NAME  studio vmoptions  Linux      FOLDER NAME  studio vmoptions and or     FOLDER NAME  studio64 vmoptions  The contents of the newly created   vmoptions file should be   -Xms128m -Xmx750m -XX MaxPermSize 350m -XX ReservedCodeCacheSize 96m -XX  UseCompressedOops   To increase the RAM allotment change -XmX750m to another value   Full instructions can be found here  http   tools android com tech-docs configuration

User · Answer

Go in the Gradle Scripts -  local properties and paste this    org gradle jvmargs -XX  MaxHeapSize  512m -Xmx512m      if you want to change it to 512  Hope it works

User · Answer

I found on on Windows 7 8  64-bit   as of Android Studio 1 1 0    INSTALL DIR  bin studio64 exe vmoptions be used  if it exists   otherwise it would always fall back to  USERPROFILE   AndroidStudio studio 64  exe vmoptions  If you want the settings managed from  USERPROFILE   AndroidStudio studio 64  exe vmoptions  just delete the one in the installation directory

User · Answer

I increased my memory following the next Google documentation   http   tools android com tech-docs configuration  By default Android Studio is assigned a max of 750Mb  I changed to 2048Mb   I tried what google described but for me the only thing that it worked was to use an environment variable  I will describe what I did   First I created a directory that I called  AndroidStudioSettings      mkdir  AndroidStudioSettings   Then I created a file called studio vmoptions   and I put in that file the following content   -Xms256m  -Xmx2048m  -XX MaxPermSize 512m  -XX ReservedCodeCacheSize 128m  -XX  UseCompressedOops    Then I added the STUDIO VM OPTIONS environment variables in my  profile file    export STUDIO VM OPTIONS  Users youruser  AndroidStudioSettings studio vmoptions   Then I reload my  profile    source    profile   And finally I open Android Studio    open  Applications Android  Studio app   And now as you can see using the status bar   I have more than 2000 MB available for Android Studio     You can customize your values according to your need in my case 2048Mb is enough   UPDATE   Android Studio 2 0 let s you modify this file by accessing  Edit Custom VM Options  from the Help menu  just copy and paste the variables you might want to keep in order to increase it for everversion you might have on your box

User · Answer

Note  I now this is not the answer for the post  but maybe this will be helpful for some one that is looking      If Nothing of this works for you  try on a Mac this to see if helps you  in the last version of Android Studio  the studio vmoptions is inside the AndroidStudio app in your Applications folder   So right click or ctrl click on your AndroidStudio App and then select show package content the studio vmoptions is in   Contents bin studio vmoptions  Replace or change it and you will get all the RAM you need      Regards

User · Answer

x000D   x000D  -Xms256m  x000D  -Xmx2048m  x000D  -XX MaxPermSize 512m  x000D  -XX ReservedCodeCacheSize 128m  x000D  -XX  UseCompressedOops  x000D   x000D   x000D

[android] Android Studio - How to increase Allocated Heap Size

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