profiling software recomendation

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JML - 01 Dec 2004 10:37 GMT

I need to find memory leaks in my java application, I mean, I need to count
the live instances and the amount of used memory of the objects.

I need a good profiling software. I used Haydes, Profile Eclipse Plugin, but
I have some problems. I would like to probe other interesting software.

I use Eclipse.

Thanks in advance.

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Heiner K?cker - 01 Dec 2004 10:51 GMT

> I need to find memory leaks in my java application, I mean, I need to count
> the live instances and the amount of used memory of the objects.
>
> I need a good profiling software. I used Haydes, Profile Eclipse Plugin, but
> I have some problems. I would like to probe other interesting software.

JProbe is an good profiler

Heiner Kuecker
Internet: http://www.heinerkuecker.de http://www.heiner-kuecker.de
JSP WorkFlow PageFlow Page Flow FlowControl Navigation: http://www.control-and-command.de
Expression Language Parser: http://www.heinerkuecker.de/Expression.html

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Jeff - 01 Dec 2004 23:45 GMT

>I need to find memory leaks in my java application, I mean, I need to count
> the live instances and the amount of used memory of the objects.
[quoted text clipped - 6 lines]
>
> Thanks in advance.

1. I find Borland's OptimizeIt to be an excellent profiler of memory and
cpu. I find it easy to identify memory leaks. It's about $800
2. Recently, I've tried Enerjy(enerjy.com) cpu and memory profiler. They
plug into your IDE so you can profile while you code. They're nice tools
and cheaper.
3. JRockit's JRA tool has good output and a more runtime environment
orientation. For example, it clearly states heap usage, number of garbage
collections, etc. But the profiling is not as strong. It's free at
http://e-docs.bea.com/wljrockit

1 & 2 both offer free evals.

Hope this helps,

Jeff

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Scott Ellsworth - 03 Dec 2004 19:06 GMT

> >I need to find memory leaks in my java application, I mean, I need to count
> > the live instances and the amount of used memory of the objects.
[quoted text clipped - 4 lines]
> >
> > I use Eclipse.

I have been happy with JProfiler from e-j technologies. The product
works, and the support team is quite good.

Allow me to contrast with YourKit. YourKit also is highly regarded, but
when they had a problem with the Mac JVM, the YourKit team essentially
said it was an Apple bug that they hoped got fixed someday. A similar
problem, when faced by e-j technologies, got a workaround that week, and
a permanent fix within the month.

I was very happy with e-j technologies responsiveness for JProfiler.

All JVMs have bugs, and some are really, truly showstoppers. They also
have bugs with workarounds, and behavioral differences that are not
bugs. I rate companies highly when they find a way for me to keep
working, rather than telling me to just hope the other vendor fixes
things.

Scott

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yourkit team - 13 Dec 2004 16:49 GMT

> Allow me to contrast with YourKit. YourKit also is highly regarded, but
> when they had a problem with the Mac JVM, the YourKit team essentially
> said it was an Apple bug that they hoped got fixed someday. A similar
> problem, when faced by e-j technologies, got a workaround that week, and
> a permanent fix within the month.

Unfortunately, there are some things that could not be worked around.
But there are good news: upcoming version of YourKit Java Profiler
(first early access build will be available by the end of December)
will support Mac OS X.

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Scott Ellsworth - 13 Dec 2004 21:34 GMT

> > Allow me to contrast with YourKit. YourKit also is highly regarded,
> but
[quoted text clipped - 10 lines]
> (first early access build will be available by the end of December)
> will support Mac OS X.

Fantastic! I will grab it and do some comparisons with JProfiler,
OptimizeIt, and Apple's Shark, to see what problems YourKit handles
better than the competition. (Every tool has strengths. If you know
what they are, then you can recommend them to clients with a clear
conscience.)

Scott

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profiling software recomendation

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