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From "Xiao-Feng Li" <xiaofeng...@gmail.com>
Subject Re: [DRLVM] 64-bit support with compressed pointer
Date Fri, 02 Feb 2007 12:30:24 GMT
On 2/2/07, Mikhail Fursov <mike.fursov@gmail.com> wrote:
> Xiao-Feng,
> Jitrino won't work with uncompressed references today, but uncompressed
> references support was taken into account in HLO and GC optimizations
> design. So I see no problems to support uncompressed references in JIT.

Thanks for the info. Great to know that.

Thanks,
xiaofeng

> 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
> >
>
>
>
> --
> Mikhail Fursov
>
>

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