Re: GWT Benchmarks, Java Virtual Machine vs GWT+browser JsVM

For sure we release production code with the following flags

• <disableCastChecking>true</disableCastChecking>
  
• <disableClassMetadata>true</disableClassMetadata>

Also you don't specify what version of IE you are testing with, I assume IE9

On Thursday, February 7, 2013 10:10:54 AM UTC-5, Fabiano Tarlao wrote:

Hi,
 in fact I have not specied not used particular optimization arguments.
I have not disabled CastChecking and ClassMetadata, and I have not explicitly set the optimization level (but the default is the maximum value).
By using defaults my current configuration is:


GWT Compiler Arguments - 

• <disableCastChecking>false</disableCastChecking>
  
• <disableClassMetadata>false</disableClassMetadata>
  
• <enableClosureCompiler>false</enableClosureCompiler>
  
• <optimizationLevel>9</optimizationLevel>
  

GWT module options in .gwt.xml

<set-property name="compiler.stackMode" value="native" />

About the  first two options, I dunno know If it is correct to disable them in order to do a fair comparison. I suppose that those features should be useful in a real production enviroment, am I right?What is you  opinion?

The  only option I'm going to enable in the next benchmark update is the new enableClosureCompiler.
I'm open to suggetions and criticism.
Regards


Il giorno mercoledì 6 febbraio 2013 10:21:46 UTC+1, Sachin Shekhar R ha scritto:

I am not sure whether you turned on all GWT compiler arguments and some turn off some Dev specific GWT features. 

GWT Compiler Arguments - 

• <disableCastChecking>true</disableCastChecking>
  
• <disableClassMetadata>true</disableClassMetadata>
  
• <enableClosureCompiler>true</enableClosureCompiler>
  
• <optimizationLevel>9</optimizationLevel>
  

GWT module options in .gwt.xml

• <set-property name="compiler.stackMode" value="strip" />
  

On Sunday, February 3, 2013 6:20:40 AM UTC+5:30, Fabiano Tarlao wrote:

Hi,
 I have wrote a simple benchmark suite in java and I have run with JavaSE 1.7.0 and, thanks to GWT, I have run the same code on Firefox,Chrome,MSIE and Opera.

My results, with the experiment details are published here: http://thegoodcodeinn.blogspot.it/2013/02/gwt-benchmarks-gwtjsvm-vs-javavm.html

You know, Javascript VM have highly improved recently but how good is GWT at compiling java into Javascript? And.. how efficient is the GWT compiled code+JsVM compared to Java bytecode running on a Java Virtual Machine??
I was just curious about.

Hope you like this experiment, comments are appreciated.
Have fun

Fabiano

PS:
My benchmark is oriented to numeric, data crunching; no multimedia.
I'll also release the benchmark code later.. if requested. I'm only a bit lazy at the moment.

 

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