What is the cost of increasing max_inlined_source_size

[Ω Alisson]

Say I want to increase it to 5000. Is it worth it?

[Michael Mathy]

Maybe. It might also hurt in a bad way. The compiler will try to inline almost all functions (assuming that your function are small) to optimize the code and the speed and then will might have to "deoptimize".

It is clearly explained here:

http://floitsch.blogspot.be/2012/03/optimizing-for-v8-inlining.html

Also a function might have some properties to be candidate to inlining. It is not just the size.

The best thing is to test it and check if it brings you a boost in performance for your application and if the memory used by your application did not increase dramatically (as inlining is almost as if you copy paste your function everywhere it is used).

[Ω Alisson]

I raised the limit to 6 million characters on a complex system. No memory increase, huge boosts

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