RFR: 8369039: JDK-8348611 caused regression in Javac-Hot-Generate [v3]

[Archie Cobbs]

On Wed, 8 Oct 2025 14:55:20 GMT, Archie Cobbs <acobbs at openjdk.org> wrote:

> Argh, ignore that, I was looking at something else. So "2" is the right number on average.

But there's no reason for that! 99.99% of package declarations have no annotations and therefore do not need to wait for attribution. So we can get this number down to "1".

I was curious if that would make any difference (using [this additional patch](https://github.com/archiecobbs/jdk/compare/JDK-8369039...archiecobbs:jdk:JDK-8369039-opt1)). When I try it on my laptop I get a slight improvement:

Benchmark                        (stopStage)  Mode  Cnt   Score   Error  Units
SingleJavacBenchmark.compileHot     Generate    ss   10  14.841 ± 0.618   s/op

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PR Review Comment: https://git.openjdk.org/jdk/pull/27651#discussion_r2414270544