[webkit-help] Overhead of parsing and bytecode generation

Jiho Choi jray319 at gmail.com
Mon Dec 29 07:58:37 PST 2014

Hi all,

I was wondering about the overhead of parsing and bytecode generation. I
found the link below saying that it is only ~2% of JS execution.


I got some questions about it.

1. Does it still hold after more than 5 years?
2. I assume that the in-memory code cache was added to reduce the overhead.
Does it help across page loads?
3. Is there any plan to make the code cache persistent by writing it to the

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