Good news, bad news

[Christian Thalinger]

On May 23, 2011, at 8:45 PM, Charles Oliver Nutter wrote:
> On Mon, May 23, 2011 at 11:05 AM, Christian Thalinger
> <christian.thalinger at oracle.com> wrote:
>> I was on vacation for a couple of days but now I'm back.
>> 
>> I looked at the inlining tree for fib_recursive and I can't see the fib_ruby method getting compiled.  But instead I see something I've never seen before:
>> 
>>   2949  105             org.jruby.ast.CallOneArgNode::interpret (34 bytes)
>> 
>> or
>> 
>>   2997  108   !         org.jruby.evaluator.ASTInterpreter::INTERPRET_METHOD (126 bytes)
>> 
>> Does that mean JRuby doesn't compile these methods but interpret them?
> 
> Hmm, I wonder if there's a problem somewhere preventing JIT now. Run
> JRuby with -d -X+C to debug logging and force compilation. I will look
> into it today myself.

I didn't use -X+C but it should compile without it too, right?  And, btw, I used JDK 7 b143.  I try again tomorrow.

-- Christian

> 
> I did see fib_ruby compile and was able to get assembly dumps out, but
> it performed terribly. I'll try to make extra sure everything's
> jitting.
> 
> Ahh the joys of a mixed-mode runtime, eh?
> 
> - Charlie
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