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  Benchmarking application  (Read 3115 times)
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Offline gregorypierce

Senior Devvie

I come upon thee like the blue screen of death....

« Posted 2003-02-15 14:08:42 »

How have people been benchmarking their applications to determine what the hotspots and know where to optimize? Personally I'm currently using OptimizeIT  for code coverage and performance hot spots. Are other people actively optimizing their applications for algorithmic issues or relying on the JIT and/or gcj and the like?

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Offline SpongeBob

Junior Devvie

Who lives in a pinnapple under the sea

« Reply #1 - Posted 2003-02-15 14:45:22 »

I use Optimizeit which came with JBuilder Enterprise.  Nice tool but I only resort to it when I notice an issue with speed.  If the speed is "good enough" I dont waste the time  Smiley.
Offline Chman

Junior Devvie

Nothing more that... Java games are cool !

« Reply #2 - Posted 2003-02-15 16:21:44 »

To optimize my code, first i use a profiler to see what part of the code is mostly called, then i make little speed test (using System.currentTimeMillis())...
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Offline princec

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« Reply #3 - Posted 2003-02-15 21:37:52 »

-Xprof for me. That, and a bit of weasly cunning, like my hunch with floating point.

Cas Smiley

Offline cfmdobbie

Senior Devvie

Medals: 1

Who, me?

« Reply #4 - Posted 2003-02-15 22:48:14 »

I tend to logically deduce where the problem is likely to be, then binary-search the method stack with System.currentTimeMillis() or the LWJGL high-res timer.

It means a lot of recompiles and re-runs, but I fair tear through them so it's no time-waster.

I intend to get a profiler/debugger at some point and learn to use it, just haven't been bothered enough to yet. Grin

Hellomynameis Charlie Dobbie.
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