RFR: 8162955: Activate anonymous class loading for small sources

[Hannes Wallnöfer]

It’s pretty drastic, and has gotten more pronounced in recent JDK 9 builds. Running test programs from the issues linked in the Jira description there’s somewhere between 30% and 100% speedup from using anonymous classes. 

Note that the intention has always been to use anonymous classes for short scripts, we just didn’t realize many users compile one-liners using the Java API.

Hannes


> Am 09.08.2016 um 11:24 schrieb Marcus Lagergren <marcus at lagergren.net>:
> 
> Do you have any benchmark examples with better and worse results?
> 
> Just curious
> 
> /M
> 
>> On 04 Aug 2016, at 13:48, Hannes Wallnöfer <hannes.wallnoefer at oracle.com> wrote:
>> 
>> Please review 8162955: Activate anonymous class loading for small sources.
>> 
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8162955
>> Webrev: http://cr.openjdk.java.net/~hannesw/8162955/webrev/
>> 
>> The size threshold of 512 bytes I chose is arbitrary. It seems to fit all reported cases which consist of firing lots of one-liner scripts where quick loading is more important than optimization.
>> 
>> Thanks,
>> Hannes
>