Re: Does -Xrunhprof work correctly with Hotspot? Or does -green turn HotSpot off?

[Cynthia Jeness]

You can generate the profiling information by specifying "-classic"., but you probably already know this.    I am also somewhat puzzled by closing the bug and the associated explanation.  My take was that "raw-monitor" was not suppored in Linux and that this is required to generate profiling with HotSpot.  I was hoping that one of the JVM experts might respond to your question.

Nathan Meyers wrote an article on profiling an provides a tool for assisting in the analysis.  He also covers this in his book.  I found both very helpful and been able to use his tool to help me analyze my results.  Unfortunately, I did not keep the URL but it should be in the archives.

Cynthia Jeness

Barnet Wagman wrote:

Orson Alvarez wrote:

Hi Barnet,

Have you received any responses to this query? I received the same error
with:

java version "1.3.0rc1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0rc1-b17)
Java HotSpot(TM) Client VM (build 1.3.0rc1-b17, mixed mode)

I looked up the problem on the JDC bug parade and they say it's fixed
due to the fix for bug 4379126. However, that bug has been taken off the
bug parade listing "due to security reasons". Additionally, the entry
for this bug states that the bug is "closed,fixed" in a "non-public
release". I looked for pre-release versions on JDC and found nothing.
Some of the workarounds were to use blackdown and now I see your
posting. Very discouraging to say the least.
 

Fraid not.  And I haven't found any documentation on using the profiler, other than what we get from '$java3 -Xrunhprof:help'

 
On top of all this I downloaded the "fcs" version and RH's rpm won't
install it because it thinks the "rc1" version is newer. Frustrating...

At any rate let me know if you hear anything.

Thanks,
O

I've given up using rpms for Java precisely for this reason.  With tarball installations, its easy to have multiple versions on one system (I have at least four at present).

Good luck.