RFR: 8360160: ubuntu-22-04 machine is failing client tests [v3]

[Alexander Zvegintsev]

On Fri, 12 Dec 2025 18:06:05 GMT, Phil Race <prr at openjdk.org> wrote:

>> Is 33 seconds unreasonable for the test? I figured since the upper-limit of frame tests is set to 30, this 33 seconds would be the longest the test would run for. Also, the test only has 1 gc for other OS's so only 1 frame is tested for that. This avoids the shadow issue as well as creates a more stable test.
>
> I will take stability at the cost of some extra time.

> Is 33 seconds unreasonable for the test? I figured since the upper-limit of frame tests is set to 30, this 33 seconds would be the longest the test would run for. Also, the test only has 1 gc for other OS's so only 1 frame is tested for that. 

In CI it may be even slower, and we can achieve the same results in a third of the time with showing several windows at once. This can cumulatively save a lot of CI time over many runs. We can still apply the same upper limit to the frame count of frame tests, and this may make it even faster.

> This avoids the shadow issue as well as creates a more stable test.

This can be mitigated simply by adding spacing between the frames.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28646#discussion_r2619095403