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  1. Edit the file: ~/Library/Preferences/PyCharm2018.1/pycharm.vmoptions


    Tip

    The simplest way to create this is from the Help menu choose "Edit Custom VM Options..


    1. If you do not see this file, copy it from /Applications/PyCharm.app/Contents/bin/ using the terminal command:  cp /Applications/PyCharm.app/Contents/bin/pycharm.vmoptions ~/Library/Preferences/PyCharm2018.1/
  2. Increase the -Xms and -Xmx settings, e.g. something like the following:

    No Format
    -Xms512m
    -Xmx2048m
    -XX:MaxPermSize=350m
    -XX:ReservedCodeCacheSize=240m
    -XX:+UseCompressedOops
    -agentlib:yjpagent=delay=10000


  3. Restart PyCharm

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