RFR: 8323529: Relativize test image dependencies in microbenchmarks

[Erik Joelsson]

On Thu, 11 Jan 2024 11:23:55 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> In principle, I think tests should be executed from their corresponding test-support directory. (I think there is some JBS issue for this that's been around for some while.) The rationale is that this is a good directory for any arbitrary output generated from the test, for files that are just dumped in the current directory. (This happens from time to time with tests.)

Magnus does bring up a good point. The root of the test image is a very bad place to accidentally drop arbitrary files when run in our distributed test system, but we don't really run the micros there, at least not like this, do we?

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PR Comment: https://git.openjdk.org/jdk/pull/17349#issuecomment-1887269464