First big project I m using kotlin The app seems to have a m kotlinlang #android

First big project I'm using kotlin. The app seems to have a memory leak issue. I'm trying to understand what it is and I see a lot of "Class" allocations that never gets deallocated. I've looked into those and looks like every time I've a lambda an allocation like that happens. I'm not 100% sure the memory leak is there but so far I couldn't find any deallocation of those.

those are roughly 52 KB of allocation per Class object. And if every lambda generate those I can understand how my app goes slowly into out of memory. I couldn't find any context / activity leak.

This can't be right... or no one would use kotlin... anyone can help me understand what's going on?

tapchicoma

10/18/2018, 9:02 AM

would be nice to provide actual code that make memory leak

rkeazor

10/18/2018, 10:35 AM

Its most likely the code your writting

and for your lambdas , also try to inline as much when needed, so you don’t end up with to much class overhead

Daniele Segato

10/18/2018, 2:40 PM

If i knew where the leak was i would fix it don't you think? A lambda is a lambda. I can't inline it.

🤦‍♀️ 1

🤦 1

ankushg

10/18/2018, 8:30 PM

@Daniele I believe @rkeazor means that you should ensure that the methods you're passing the lambda into use the

inline

modifier: https://kotlinlang.org/docs/reference/inline-functions.html

👍 2

rkeazor

10/18/2018, 8:32 PM

exactly

Daniele Segato

10/22/2018, 1:46 PM

FYI I had no idea but apparently

by lazy

cause memory leak. I use this heavily and in my opinion this is an issue with kotlin.

and inline is not always possible

#android Join Slack