Re: Open source Profilers

Are you looking specifically for "open source", or "free" (as in beer)?

NetBeans one is certainly free, and I know Java performance tuning pros
who like it very much.

I myself (just like Randall) have bought YourKit. I've tried many
profilers in the past, and all had their deficiencies here and there
(heck, I even sent in patches to jhat), most notably when you try to track
down harder stuff, like a memory leak due to a class loader not being
GC-ed, you find out that surprisingly many profilers out there don't
consider that there's a strong reference from an object to its class, from
an array class to its component class, and from a class to its class
loader. YourKit does all these right (and did all these right back in 2005
when I had to wrestle with problems of this kind).

And while I understand that you're looking for something that tells you
time spent in a method, and not something to track memory leaks (yet), and
that YourKit is neither free nor open source, I can regardless
wholeheartedly recommend YourKit to anyone :-)

Attila.

On Wed, 15 Aug 2007 00:32:39 +0200, Avinash Lakshman
<[email protected]> wrote:

> Hi
>
> Any good open-source profilers that you guys would recommend based on
> experience ? Basically I need  something that will tell me the time
> spent in
> each method call over a run.
>
> Thanks
> Avinash
>

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