RFR: 8280481: Duplicated stubs to interpreter for static calls

[Dingli Zhang]

On Wed, 17 Aug 2022 12:09:05 GMT, Evgeny Astigeevich <duke at openjdk.org> wrote:

>> Hi Andrew(@theRealAph),
>> Your comments are usually highly useful and help to identify missed issues.
>> Do you have any of them?
>> Thanks,
>> Evgeny
>
>> Hi @eastig , I'd like to ask you how to get the experiment results, aka. `Saved bytes`, `Nmethods with shared stubs`,`Final # of nmethods`. Thank you!
> 
> You can get `Final # of nmethods` with `-XX:+PrintCodeCache`.
> To get `Saved bytes`, `Nmethods with shared stubs` you need to instrument `emit_shared_stubs_to_interp` to count shared stubs and nmethods sharing them.

Hi @eastig ,
I would like to recurring your experimental data and I would be very grateful if you could provide a small patch to help me get the result of `Saved bytes` and `Nmethods with shared stubs`.
Thank you!

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PR: https://git.openjdk.org/jdk/pull/8816