SA.NEXT - SA feedback needed

[Krystal Mok]

Hi Coleen,

Comments inline:

On Fri, Feb 7, 2014 at 2:53 PM, Coleen Phillimore <
coleen.phillimore at oracle.com> wrote:

>
> On 1/31/14 9:19 AM, Dmitry Samersoff wrote:
>
>>
>> 1. How often do you use SA?
>>
>
> I tried once, but I think it was broken.
>
> Was that CLHSDB you tried?
There could be cases where you've used SA under the hood of some j-* tools,
e.g. jstack -F/-m or on core dump, jmap -heap/-F or on core dump, etc.

And yeah, SA can be broken from time to time...for the exact reason you
mentioned below.


> I've said before that I believe the SA should be discontinued unless the
> problem of duplicated hotspot code in it can be resolved.   We are in the
> process of changing many things in the code and the tax of a duplicate
> implementation in Java is too high.  Find a way to use the libjvm.so or a
> libjvm_sa.so to retrieve hotspot internals.
>
> Without a way to mechanically generate all the mirroring data structures,
I'd concur on this point. But do please come up with a viable alternative
before discontinuing SA.

- Kris


> Coleen
>
>>
>> -Dmitry
>>
>>
>