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4.6 IL2CPP Memory Crashes

Discussion in 'iOS and tvOS' started by eezSZI, Apr 20, 2015.

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  1. JoshPeterson

    JoshPeterson

    Unity Technologies

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    @TinyMobGraham

    Yes, all of the memory improvements are in 5.1.1p2 now. We have some more improvements we are working on now, and anything new will go to 4.6 and 5.1 patch releases.

    As mentioned in the announcement about 5.0.3p3, it is the last patch release we are planning for the 5.0 series. We'll have a 5.0.4 to roll up the 5.0.3p1, p2, and p3 releases. But if you are are looking for more IL2CPP fixes in the future, you will want to start moving to 5.1.
     
    JoshPeterson, Jun 24, 2015
    #51
    TinyMobGraham likes this.

  2. kobojo

    kobojo

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    @JoshPeterson did you guys have any luck reproducing our issue yet?
     
    kobojo, Jul 8, 2015
    #52

  3. JoshPeterson

    JoshPeterson

    Unity Technologies

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    @kobojo

    No, sorry, we have not investigated this issue yet. I'll try to have a look at it today though. Thanks for pinging me.
     
    JoshPeterson, Jul 8, 2015
    #53

  4. DMinsky

    DMinsky

    Joined:
    May 20, 2012
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    30
    Any updates on this issue?)
     
    DMinsky, Nov 9, 2015
    #54

  5. JoshPeterson

    JoshPeterson

    Unity Technologies

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    @DMinsky

    Looking back over the thread, I'm unable to see which specific bug report number was discussed here. Generally, we've shipped a number of changes in the last few releases to make initialization in IL2CPP more lazy at runtime, meaning that often the memory usage of a project will decrease, as we longer allocate memory for things that are not really used at runtime.

    Let me know if you are still seeing issue with the latest patch release, and we can investigate.
     
    JoshPeterson, Nov 10, 2015
    #55

  6. PixoChu

    PixoChu

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    @JoshPeterson

    I'm a bit late to this party..but we're seeing some issues similar to the topic that's being discuss throughout this thread. What version/patch should contain the memory improvements. Thanks.
     
    PixoChu, Nov 11, 2015
    #56

  7. JoshPeterson

    JoshPeterson

    Unity Technologies

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    @PixoChu

    I would recommend the trying the latest path release. I don't recall the exact version where the most recent memory improvements shipped, but the latest version will be the best option, I think.
     
    JoshPeterson, Nov 12, 2015
    #57

  8. PixoChu

    PixoChu

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    @JoshPeterson

    Thanks for the quick reply. I tried 5.2.2p3 and we're still experiencing the same issue. I'll keep poking around. It may be important to note that building to mono, we don't experience the same memory crash issue that we do when building to IL2CPP.
     
    PixoChu, Nov 12, 2015
    #58

  9. JoshPeterson

    JoshPeterson

    Unity Technologies

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    @PixoChu

    Thanks, that is important information. It might be worthwhile to submit a bug report, if possible, so that we can have a look at the specific issue. These are sometimes difficult to track down.
     
    JoshPeterson, Nov 12, 2015
    #59

  10. PixoChu

    PixoChu

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    Oct 16, 2013
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    @JoshPeterson

    We eventually found our problem and narrowed it down to 1 method we were using to create thumbnails. As far as we can tell it had something to do with Threads or Mutex, but when I rewrote the method without those 2 types (tho less efficient) we no longer experienced the leak. Not sure if that helps you guys, but it saved our arses.

    Good luck.
     
    PixoChu, Dec 11, 2015
    #60

  11. JoshPeterson

    JoshPeterson

    Unity Technologies

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    @PixoChu

    Thanks for letting me know. We'll keep this in mind for future, similar bugs.
     
    JoshPeterson, Dec 11, 2015
    #61

  12. Cascho01

    Cascho01

    Joined:
    Mar 19, 2010
    Posts:
    1,347
    Sorry for this dumb question:
    Is there really no way to check in runtime, if the app is getting close to a termination due to memory limits?
    What we need is simplified: Memory available - memory used.

    Right now it´s kind of unprofessional.
     
    Cascho01, Nov 28, 2016
    #62

  13. JoshPeterson

    JoshPeterson

    Unity Technologies

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    @Cascho01

    Memory restrictions can vary pretty widely for different platforms. Usually this is best handled with platform specific code then. I'm not an expert on iOS, but I've found this information, which might be helpful. Maybe others with more knowledge of iOS can help.
     
    JoshPeterson, Nov 28, 2016
    #63

  14. Cascho01

    Cascho01

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    Yes, this seems to be the information needed, so is there anyone who can explain how to get this in Unity c#?
     
    Cascho01, Nov 30, 2016
    #64
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