java profiler at source level?

[moogie]

I am wondering whether there exists a java profiler which identifies the hotspots internally inside a method?

I have my first iteration of my next java 4k entry however it is very slow. I want to profile it however since all the game logic is inside the constructor it the standard profilers are  too coarse... i would like to know which line numbers are causing most of the slow downs....

[keldon85]

Can you rewrite it to profile, then switch back?

[Riven]

Insert a few System.nanoTime()s here and there.

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[moogie]

ah, bugger... that is what i thought i would have to do

thanks anyway!

[2playgames]

or move bits of code into their own private void doStuff()

[keldon85]

or move bits of code into their own private void doStuff()

Already suggested about 3 posts above

ah, bugger... that is what i thought i would have to do

thanks anyway!

Well just be sure not to let System.out.print(s) or ""+"" mess with your timings!

[2playgames]

Already suggested about 3 posts above

do you mean:

Can you rewrite it to profile, then switch back?

?
because that could have meant loads of things, especially for someone who's never used a profiler (like me  )

[keldon85]

because that could have meant loads of things, especially for someone who's never used a profiler (like me  )

lol, yeah!