RFR: 8272914: Create hotspot:tier2 and hotspot:tier3 test groups [v4]

[Aleksey Shipilev]

On Thu, 2 Sep 2021 13:56:09 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> The reason I'm asking is that I run tier1 all the time locally before sending it to some machine land, and if things move out, I don't want to miss them.

I understand the use case, I have a similar one. I solved it for my workflow with a little bash script that runs `tier1`, `tier2`, etc. The additional bonus of scripting it outside the test group is that you can ran some lower tiers with additional `TEST_VM_OPTS`. So, I would prefer to leave this outside the test groups.

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PR: https://git.openjdk.java.net/jdk/pull/5241