[11u] RFR 8185525: Add JFR event for DictionarySizes

[Mario Torre]

I think we need to carefully consider the number of backports we want
related to JFR.

I can't comment on the specific of this patch but I think we should
avoid backporting every feature of JFR that happens to be introduced.
That said, there are indeed a number of useful things, for example the
streaming API, so I'm not sure where to draw the line, this is
probably for the maintainers to decide.

I don't think we have a list of back ports we want to do, so far we
only backported ported everything that was necessary, but with this
work mostly over we are now thinking with features, so it may make
more sense to write down what we want and discuss the backports with
the maintainers before committing work.

Cheers,
Mario

Il giorno gio 19 dic 2019 alle ore 17:28 Langer, Christoph
<christoph.langer at sap.com> ha scritto:
>
> Hi Andrey,
>
> thanks for your comments about these JFR event backports.
>
> Can you compile a list of items that you’d like to backport to both, 8u JFR and 11u? Then we can sync together with Mario and Andrew Haley and take a decision about what we want to approve.
>
> Cheers
> Christoph
>
>
> From: Andrey Petushkov <andrey at azul.com>
> Sent: Montag, 9. Dezember 2019 13:08
> To: Denghui Dong <denghui.ddh at alibaba-inc.com>; Erik Gahlin <erik.gahlin at oracle.com>; jdk-updates-dev <jdk-updates-dev at openjdk.java.net>; Mario Torre <neugens at redhat.com>; Langer, Christoph <christoph.langer at sap.com>
> Subject: Re: [11u] RFR 8185525: Add JFR event for DictionarySizes
>
> Hi guys, All,
>
> No, there is not special reasoning for back-porting of this particular event type. Feel free to reject the request. A few comments though
> - we at Azul see JFR as a very useful and successful tool for solving customer issues. So in general we try to keep up with new fixes and features there, unless we consider fix as too risky or inappropriate
> - all these JFR backports proposed are undergo full test cycle, involving all tests we have (including of course all jtreg) on all platforms supported by Azul (well, a lot)
> - @Christoph regarding fix not yet pushed to 8u. We (Marrio and team involved into JFR to 8u backporting)  have a policy that we don't push into 8u until it's pushed into 11u. Hence it's not pushed
>
> Regards,
> Andrey
>
>


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