On Tue, 21 Jan 2025 13:45:50 GMT, Alan Bateman <al...@openjdk.org> wrote:

> Okay, there is much more significant change now and will require time to 
> review very closely.

Sure. I was hoping we could avoid changing the feedback path in allocation 
code, but testing disagreed :)

I remember when we built that feedback path back in JDK 8 days; it is clumsy 
and hacky and arguably a tech debt, but it worked well on stress tests. Today, 
migrating DDB to standard Cleaner forces us to figure out that particular part 
of technical debt: the feedback path from Reference handler to DDB allocation 
code needs to be replaced with the feedback path from Cleaner. I think current 
version is less messy than what we had before. No stress test failures so far...

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PR Comment: https://git.openjdk.org/jdk/pull/22165#issuecomment-2604896009

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