Twitter move to Java

Dmitri Dolguikh dmitri at redhat.com
Fri Nov 16 14:02:18 UTC 2012


On 16/11/12 01:45 PM, Giulio Fidente wrote:
> On 11/16/2012 01:57 PM, Martyn Taylor wrote:
>> Worryingly...
>>
>> http://www.theregister.co.uk/2012/11/08/twitter_epic_traffic_saved_by_java/
>>
>> Let's all not jump ship just yet!
> Now, not to start any war on programming languages but I always tought
> that the JVM was faster [1] (for cpu bound and memory bound tasks)
> mainly because has got strong and static typing.
>
> But is it just that?
>
> [1]
> http://blog.dhananjaynene.com/2008/07/performance-comparison-c-java-python-ruby-jython-jruby-groovy/
JVM is pretty great. Note that Twitter projects are not using Java 
however, but rather Scala (and clojure), neither of which outperforms 
Java. I think it's not really a testament to how fast Java is, but 
rather to how badly ruby VM sucks.

-d



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