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- Subject: Re: [ANN] LuaJIT x64 port sponsorship program
- From: Florian Weimer <fw@...>
- Date: Thu, 10 Dec 2009 07:41:35 +0100
* Robert G. Jakabosky:
> Another quote from:
> http://lua-users.org/lists/lua-l/2009-08/msg00202.html
>> If someone, somehow eventually outgrows the 4G limit one could
>> switch to compressed pointers. Shifting the pointer by 3 or 4 bits
>> results in a 32 GB or 64 GB limit.
>
> It might be good to do this even if each instance of LJ2 isn't going to use
> more then 4Gbytes of memory.
OpenJDK had some performance issues with this type of encoding:
<http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2009-March/000867.html>
