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Index › Programming Questions & Help › Syntax Questions › does my apps run faster with eclipse
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does my apps run faster with eclipse? (Read 1194 times)
punchik
does my apps run faster with eclipse?
Jul 12th, 2009, 7:37am  
hello, one question , if there any benefit in terms of speed if i use eclipse , java and processing as a java library . Do the apps compiled in eclipse runs faster ?


thanks


pun.
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PhiLho 
Re: does my apps run faster with eclipse?
Reply #1 - Jul 12th, 2009, 2:33pm  
No, they will run at the same speed, because they run on the same JVM.
Eclipse adds more comfort when writing programs, like autocompletion and navigation, allows to debug, and allows to use full Java 1.5 syntax, at the cost of the loosing the (slightly) simplified syntax of Processing.
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jeffg
Re: does my apps run faster with eclipse?
Reply #2 - Jul 13th, 2009, 8:39am  
I expect it may be possible to improve the speed by using a faster JVM.  Has anyone tried JRocket?
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PhiLho 
Re: does my apps run faster with eclipse?
Reply #3 - Jul 13th, 2009, 10:03am  
Perhaps you mean JRockit (that's what is proposed when I search JRocket JVM in Google...). Never heard of it before...
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jeffg
Re: does my apps run faster with eclipse?
Reply #4 - Jul 13th, 2009, 10:15am  
Yes, JRockit JVM by Oracle.  It's suppose to be faster than Sun's implementation.
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alvaro
Re: does my apps run faster with eclipse?
Reply #5 - Jul 13th, 2009, 11:23am  
usually, increasing the amount of memory available to the JVM does have an impact on speed. You can see how to do it in processing/lib/preferences.txt

Make sure to read the IMPORTANT notice at the beginning of the file.
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PhiLho 
Re: does my apps run faster with eclipse?
Reply #6 - Jul 13th, 2009, 12:06pm  
A useful hint: sometime, the slow sketch is because of some un-optimized function, eg. creating too much short lived objects, or even loading strings, shapes, fonts or images in draw() (I saw it too often...).
If you go to the Java JDK bin directory, you will find a jvisualvm (.exe on Windows) file. Run it, attach it to your running sketch, and you will be able to visualize memory and CPU usage, among other things. You can profile the sketch and find out which function is the bootleneck of your application (if you broke them down to smaller parts, of course).
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NoahBuddy
Re: does my apps run faster with eclipse?
Reply #7 - Jul 14th, 2009, 11:14pm  
One other trick you can try is the '-server' command line switch.
It tells Java to try optimizing by recompiling.

I have seen improvement over time in a couple of my projects.

In addition to PhiLho's hint, you may not see any gain depending on your computer configuration (some systems use server mode by default).
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