RFR: 8256181: Remove Allocation of old generation on alternate memory devices functionality

[Thomas Stüfe]

Hi Thomas,

I think this makes sense. Just a question, how are your thoughts about
JEP316? Do you consider AllocateHeapAt similarly unused?

Cheers, Thomas

On Wed, Nov 11, 2020 at 2:17 PM Thomas Schatzl <tschatzl at openjdk.java.net>
wrote:

> Hi all,
>
>   can I get reviews for this change that removes the "Allocation of old
> generation of Java heap on alternate memory devices" functionality
> introduced with JDK 12 with [JDK-8202286](
> https://bugs.openjdk.java.net/browse/JDK-8202286) due to being
>
> - not used by anyone
> - not maintained by anyone, i.e. several bugs open for a long time and bit
> rotting
> - requiring some workarounds for new feature development wrt to heap
> management
>
> All flags covered by this feature were experimental flags, so there are no
> additional procedural issues to take.
>
> I tried to remove all but a few minor cleanups that I thought useful, but
> of course this is very subjective.
>
> Testing: hs-tier1-5
>
> -------------
>
> Commit messages:
>  - Initial import
>
> Changes: https://git.openjdk.java.net/jdk/pull/1162/files
>  Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1162&range=00
>   Issue: https://bugs.openjdk.java.net/browse/JDK-8256181
>   Stats: 2309 lines in 49 files changed: 4 ins; 2177 del; 128 mod
>   Patch: https://git.openjdk.java.net/jdk/pull/1162.diff
>   Fetch: git fetch https://git.openjdk.java.net/jdk
> pull/1162/head:pull/1162
>
> PR: https://git.openjdk.java.net/jdk/pull/1162
>
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