The question about lambda's performance

=?GB2312?B?zuLosdSo?= wupuyuan at
Mon Feb 20 18:57:55 PST 2012

Thx for your reply , are there some blogs or doces about the plan and so on

2012/2/21 Brian Goetz <brian.goetz at>

> Thanks for trying out the implementation!
> We are still very much in the prototype stage of the development of the
> implementation.  Currently the compiler generates inner classes, but that
> is definitely a temporary strategy.  Our focus has been exclusively on
> delivering something that works, so people can try it out.  Many shortcuts
> have been taken to get something in people's hands as early as possible, so
> that we could get feedback on the usability of the features.
> Any conclusions drawn from performance measurements at this time would
> definitely be premature.
> On 2/20/2012 8:33 PM, Îâè±Ô¨ wrote:
>> Hi, I'm from china and take care of lamdba project these days.
>> I'm sorry for last mail is not whole... so I send again.
>> I read the doc of
>> carefully, the lambda spec is  so simple, but there is a question about
>> performance.
>> In section 1 background ,  we get the information that the "callback
>> interface" nearly can not increase the performance by multicore cpu or
>> parallel-programming. But there is no info in the follow part about the
>> target of lambda. Is there some improvement of JVM about this?
>> I test the "javap -c" to the classes , there are no "invokedynamic"
>> created, and test the cost time of inner classes and lambda ,it seems
>> lambda codes cost a little more time.
>> Thx resd my question! If there are any unclear because my pool English
>> please note me!
>> B&R

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