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From "Aleksey Ignatenko" <aleksey.ignate...@gmail.com>
Subject Re: [DRLVM] 64-bit support with compressed pointer
Date Fri, 02 Feb 2007 06:33:23 GMT
Did you check that it works on 64 bit mode with uncomressed references.
I remember some time ago there were issues like hard coded compressed
references used in JIT (or probably somewhere else) in 64bit mode.

Best regards,

On 2/2/07, Xiao-Feng Li <xiaofeng.li@gmail.com> wrote:
> Hi, current 64bit support uses compressed reference pointer by
> default, i.e., a 64bit reference is stored as a 32bit value plus a
> (global) base address. This can reduce the footprint of working set
> and at the same time improve cache locality. But this has max heap
> size limitation.
> I wonder why not use non-compressed pointer as by default, and the
> compressed pointer is only an optimization that can be applied when
> desirable. Comments?
> Thanks,
> xiaofeng

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