RFR: 8290025: Remove the Sweeper [v10]

[Erik Österlund]

On Fri, 12 Aug 2022 10:42:11 GMT, Erik Österlund <eosterlund at openjdk.org> wrote:

>> Hi Erik,
>> 
>> I'll take a closer look next week, and by then we will have more test runs to get a better picture.
>> 
>> Meanwhile, could you please merge the change to the current head? This would help us with our ideosyncratic CI. Thank you!
>> 
>> ..Thomas
>
>> Hi Erik,
>> 
>> I'll take a closer look next week, and by then we will have more test runs to get a better picture.
>> 
>> Meanwhile, could you please merge the change to the current head? This would help us with our ideosyncratic CI. Thank you!
>> 
>> ..Thomas
> 
> Thank you for having a look at this. I merged to the latest head, hope that helps!

> Hi Erik (@fisk),
> 
> We have a real-life workload with 20k - 50k compiled methods. I'd like to test the patch with it. The workload uses jdk17.
> 
> How difficult is to port the patch to 17?

It's doable but a little bit tricky as the nmethod entry barriers for G1 were inteoduced with loom, which didn't exist in 17.

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PR: https://git.openjdk.org/jdk/pull/9741