RFR: 8331865: Consolidate size and alignment checks in LayoutPath

[Maurizio Cimadamore]

On Thu, 16 May 2024 14:11:47 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> > > Do we have any performance tests available to see if there are any potential impacts?
> > 
> > 
> > I've run all micro benchmarks whose name match `LoopOver*`. No regression was found. Few benchmarks seems a tad faster, but the percentages are so tiny that I'm sure it has nothing to do with the patch. I compared results before/after using [JMH visualizer](https://jmh.morethan.io/).
> 
> Results here: https://cr.openjdk.org/~mcimadamore/jdk/8331865/ Unfortunately I can't seem to be able to upload the results in the visualizer (which would be handy, so I could share a link to the results). Not sure if it's an issue in the visualizer, or in the cr server itself. But, it is possible to at least download the above results locally, and then upload them to the visualizer tool.

Here's a link to the results:
https://jmh.morethan.io/?sources=https://corsproxy.io/?https://cr.openjdk.org/~mcimadamore/jdk/8331865/loop_over_00_baseline.json,https://corsproxy.io/?https://cr.openjdk.org/~mcimadamore/jdk/8331865/loop_over_01_8331865.json

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PR Comment: https://git.openjdk.org/jdk/pull/19251#issuecomment-2137713233