Hotspot loves PHP.reboot

[Christian Thalinger]

On Sep 7, 2011, at 4:13 PM, Rémi Forax wrote:

> On 09/07/2011 01:22 PM, Christian Thalinger wrote:
>> 
>> 
>> On Sep 7, 2011, at 11:15 AM, Rémi Forax wrote:
>> 
>>> On 09/07/2011 09:08 AM, John Rose wrote:
>>>> 
>>>> On Sep 7, 2011, at 12:00 AM, Per Bothner wrote:
>>>> 
>>>>> I assume this is one reason why Kawa's IntNum is (mostly) faster than 
>>>>> BigInteger.
>>>> 
>>>> Yes, that's probably true.
>>>> 
>>>> Here's a dirty secret:  As you can see from the OpenJDK sources, BigDecimal, but not BigInteger, has this optimization (see private field BigDecimal.intCompact).  Why BigDecimal but not BigInteger?  Because specjbb2000 uses BigDecimal.
>>>> 
>>>> (OTOH, an imperfect metric like specjbb2000 is far better than no metric at all, for driving competition.)
>>> 
>>> This remember me that we don't have any benchmarks using dynamic languages
>>> which is, as you explain, not good on the long term.
>>> 
>>> What about having 10 to 12 benchs, one by language, provided by each language runtime developer
>>> as a good bench for their runtime ?    
>> 
>> That is a VERY good idea!  How about if PHP.reboot contributes the first one? ;-)
> 
> I've to think a bit about what is the best program for a bench of PHP.reboot.
> I also think that we should provide only one jar with a special entrypoint.

Right, that would be good.  Maybe something like DaCapo where you have one jar file but you can also choose to run single benchmarks (e.g. java -jar jsr292bench.jar [phpreboot|jruby|seph|...]).

> 
> What is the best location for that benchmark ?  

Not sure.  What about Kenai?

-- Christian

> 
>> 
>> -- Christian
> 
> Rémi
> 
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