Java eclipse IDE line speed debug -

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i have been working java while , programs have made terribly slow , parts of them run @ abysmal speeds. feel there should debug tool eclipse extension or existing feature shows lines or sections of code taking longest finish executing. there such tool use, or there better way check optimization?

+1 measuring before optimization!

the default jvisualvm , sampler tab can pinpoint bottlenecks you.

jvisualvm on same path javac, type jvisualvm console, , runs.

on screenshot below can see how i'm sampling eclipse. can sample own program too, select program on applications bar.

jvisualvm eclipse sampling


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