info about the linux you build on, and other things

[Volker Simonis]

And just to avoid any misunderstanding - you'll have to install a 64-bit
version of Ubuntu on your G5 system to build and use our port because we
currently only support a 64-bit version of the VM.


On Mon, Jan 28, 2013 at 7:44 PM, Volker Simonis <volker.simonis at gmail.com>wrote:

>
>
>
> On Mon, Jan 28, 2013 at 7:29 PM, Christian Calderon <
> calderon.christian760 at gmail.com> wrote:
>
>> Hello, I was just wondering What linux distro you build on, and whether
>> it would be simple to build the port with the JIT compiler on Ubuntu 12.04
>> Precise Pangolin. Would you know of any extra steps i would have to take to
>> build this that aren't on the site?
>
>
> Currently we build on SLES 10.3 and Fedora 17 but I don't see any reason
> why you won't be able to build on Ubuntu 12.04.
> The build instructions for PPC64 are all in the repository under:
> http://hg.openjdk.java.net/ppc-aix-port/jdk7u/raw-file/tip/README-ppc.html
>
> If something is not working on Ubuntu 12.04 please let us know and we'll
> try to help and/or fix it if possible.
>
>
>> Also, am I correct in thinking that this would run on my Powermac G5 (in
>> Ubuntu)?
>
>
> Well, if you build on Linux/PPC64 the resulting VM should of course also
> run on that system:)
>
>
>> Is the linux/ppc64 port able to allocate more than 1 GB of memory for
>> running jars?
>
>
> It's a 64-bit VM and it can run with a heap as big as your main memory if
> you wish:)
>
>
>> Would you happen to know the speed difference between the interpreter
>> only mode and the mixed mode versions of this port?
>
>
> The mixed-mode VM is at least an order of magnitude faster as the
> interpreter only version.
>
>
>> And my final question: How would the performance of this compare with the
>> apple version of java 5 I have on Tiger or Leopard?
>>
>
> I think it should be faster, but I don't exactly know which JIT they used
> (I suppose it was an older, 32-bit version of C2, at least on PPC, but I'm
> not sure). What does "java -version" shows on that platform?
>
> Regards,
> Volker
>
>
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