An individual function would often be smaller than 4K, and it's up to the JIT to...

klodolph on Oct 21, 2015 | parent | context | favorite | on: W^X enabled in OpenBSD Firefox port

An individual function would often be smaller than 4K, and it's up to the JIT to decide how much to compile at one time, and you can also coalesce new code with old code to compact it.