[Development] Regarding qmlcachegen and qml bytecode compression

[Ulf Hermann]

> My question is that, does `qmlcachegen` compress the bytecode before it 
> is embedded in the generated C++ source file? If not, is there a plan to 
> do that or a reason not to do that?

The byte code is not compressed. If it was, we couldn't mmap() it in 
straight from the file (which can be paged back to disk by the OS on 
inactivity) but instead would have to spend additional memory to hold 
the uncompressed byte code. Doing so is considered more expensive than 
the binary size footprint of the uncompressed code.

best,
Ulf