Is GCJ still really necessary?

11-16-2009, 11:53 PM

On 16:41 Mon 16 Nov , Orcan Ogetbil wrote:
> On Mon, Nov 16, 2009 at 4:33 PM, Mary Ellen Foster wrote:
> > What's the benefit of doing the GCJ AOT-compilation steps as defined
> > in https://fedoraproject.org/wiki/Packaging/GCJGuidelines? Doesn't
> > everyone just use OpenJDK these days? It adds a bunch of extra stuff
> > to every Java spec file and makes all java packages arch-specific
> > instead of noarch, which always feels a bit weird ...
> >
> > MEF
> >
>
> Ah the famous topic

>
> I think the latest explanation for the AOT bits were that they are
> still needed in ppc* architectures because openjdk is still slow on
> those machines.
>
> I don't know if this has changed since. But from F-13 on, I expect
> that we will drop the AOT bit requirement since ppc* won't be primary
> architectures anymore.
>
> Orcan
>
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AOT is still beneficial with some applications, even on non-ppc
architectures -- ecj being the prime example.
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11-17-2009, 10:36 AM

Orcan Ogetbil wrote:
> On Mon, Nov 16, 2009 at 4:33 PM, Mary Ellen Foster wrote:
>> What's the benefit of doing the GCJ AOT-compilation steps as defined
>> in https://fedoraproject.org/wiki/Packaging/GCJGuidelines? Doesn't
>> everyone just use OpenJDK these days? It adds a bunch of extra stuff
>> to every Java spec file and makes all java packages arch-specific
>> instead of noarch, which always feels a bit weird ...
>
> Ah the famous topic

>
> I think the latest explanation for the AOT bits were that they are
> still needed in ppc* architectures because openjdk is still slow on
> those machines.
>
> I don't know if this has changed since. But from F-13 on, I expect
> that we will drop the AOT bit requirement since ppc* won't be primary
> architectures anymore.

And Shark, the LLVM-based JIT for OpenJDK, is getting close to
prime time. See http://icedtea.classpath.org/wiki/ZeroSharkFaq

Andrew.

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11-17-2009, 10:56 AM

On Tue, 2009-11-17 at 11:36 +0000, Andrew Haley wrote:
> And Shark, the LLVM-based JIT for OpenJDK, is getting close to
> prime time. See http://icedtea.classpath.org/wiki/ZeroSharkFaq

Very nice. Out of curiosity, are there plans to try to get Shark to pass
the Java SE 6 TCK?

Best,
Ismael

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11-17-2009, 12:26 PM

Ismael Juma wrote:
> On Tue, 2009-11-17 at 11:36 +0000, Andrew Haley wrote:
>> And Shark, the LLVM-based JIT for OpenJDK, is getting close to
>> prime time. See http://icedtea.classpath.org/wiki/ZeroSharkFaq
>
> Very nice. Out of curiosity, are there plans to try to get Shark to pass
> the Java SE 6 TCK?

Yes, as soon as it's done.

Andrew.

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mh, open a bug give the link here and you all should vote for a +1 in
the bugreport!

2009/11/17, William Jon McCann <william.jon.mccann@gmail.com>:
> On Fri, Nov 13, 2009 at 12:11 PM, Tareq Al Jurf
> <taljurf@fedoraproject.org> wrote:
>> Hi all
>> I think that we should change somethings in fedora that would make it
>> easier.
>> Things that whenever a new person starts fedora for the first time wou=
ld
>> change them.
>> For example whenever i start fedora for the first time i change the
>> behavior
>> of the folders and make them open in browser
>> can we make that default? Because i think most people do that.
>
> Yes, I agree.
>
> Jon
>
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