RFR: JDK-8293313: NMT: Rework MallocLimit [v9]

[David Holmes]

On Fri, 17 Feb 2023 07:07:11 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>> Thanks guys!
>> 
>>> LGTM.
>>> 
>>> Will there be a release note documenting the changed/removed XX-flags ? Maybe there should be one .
>> 
>> That is not necessary since this was a diagnostic switch. Also, the new format is backward compatible with the old one (so no behavioral change if someone had set it)
>> 
>> Cheers, Thomas
>
>> @tstuefe with regards to a release note ... while the flag is now diagnostic that is a change made in JDK 21, so in terms of users of JDK 20 migrating to JDK 21, a release note may be need to both explain the flag is now diagnostic (and subject to change without notice), and that "none" is no longer a valid value.
> 
> I assume you mean JDK-8302129, right? The MetaspaceReclaimPolicy=none removal? 
> 
> Makes sense, I will do that. I opened https://bugs.openjdk.org/browse/JDK-8302708 to track that.

Sorry @tstuefe - no idea how I got the two issues mixed up. :(

-------------

PR: https://git.openjdk.org/jdk/pull/11371