RFR: 8007806: Need a Throwables performance counter

[David Holmes]

I'm getting very confused regarding the different threads on this. But 
this webrev:

http://cr.openjdk.java.net/~nloodin/exception-tracing/webrev.01/

shows the intrusive event tracing that I'm sure we said we would 
grudgingly accept for 7u but not for JDK 8.

David

On 23/02/2013 2:16 AM, Jason Mehrens wrote:
>  From this webrev
> http://cr.openjdk.java.net/~nloodin/exception-tracing/webrev.01/  you
> are counting the number of throwables constructed.  You might want to
> change the name to reflect that.  I don't think anyone would want to
> write a spec for how many throwables are thrown given that a throwable
> can be wrapped, suppressed, rethrown, etc.
> Jason
>
>  > Date: Fri, 22 Feb 2013 14:10:02 +0100
>  > From: nils.loodin at oracle.com
>  > To: core-libs-dev at openjdk.java.net; serviceability-dev at openjdk.java.net
>  > Subject: Fwd: RFR: 8007806: Need a Throwables performance counter
>  >
>  > Does anyone have anything strongly against this? This is a small change
>  > just to add a performance counter, the code to increment it and read it
>  > will live in other parts of the code and be a part of a larger separate
>  > commit.
>  >
>  > Alan Bateman gave the response that the name was inappropriate, but I
>  > don't really have a better alternative, but neither do I have strong
>  > opinions, so feedback would be appreciated!
>  >
>  > How about
>  > "sun.throwables.thrownThrowables" ?
>  >
>  > Regards,
>  > Nils Loodin
>  >
>  >
>  > -------- Original Message --------
>  > Subject: RFR: 8007806: Need a Throwables performance counter
>  > Date: Fri, 08 Feb 2013 18:10:02 +0100
>  > From: Nils Loodin <nils.loodin at oracle.com>
>  > To: core-libs-dev at openjdk.java.net,        serviceability_dev_ww_grp
>  > <serviceability_dev_ww_grp at oracle.com>
>  >
>  > It would be interesting to know the number of thrown throwables in the
>  > JVM, to be able to do some high level application diagnostics /
>  > statistics. A good way to put this number would be a performance
>  > counter, since it is accessible both from Java and from the VM.
>  >
>  > http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8007806
>  > http://cr.openjdk.java.net/~nloodin/8007806/webrev.00/
>  >
>  > Regards,
>  > Nils Loodin
>  >
>  >
>