Integrated: 8273314: Add tier4 test groups

[Aleksey Shipilev]

On Fri, 3 Sep 2021 09:10:20 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> During the review of JDK-8272914 that added hotspot:tier{2,3} groups, @iignatev suggested to create tier4 groups that capture all tests not in tiers{1,2,3}. 
> 
> Caveats:
>  - I excluded `applications` from `hotspot:tier4`, because they require test dependencies (e.g. jcstress).
>  - `jdk:tier4` only runs well with `JTREG_KEYWORDS=!headful` or reduced concurrency with `TEST_JOBS=1`, because headful tests cannot run in parallel
> 
> Sample run with `JTREG_KEYWORDS=!headful`:
> 
> 
> ==============================
> Test summary
> ==============================
>    TEST                                              TOTAL  PASS  FAIL ERROR   
>>> jtreg:test/hotspot/jtreg:tier4                     3585  3584     0     1 <<
>>> jtreg:test/jdk:tier4                               2893  2887     5     1 <<
>    jtreg:test/langtools:tier4                            0     0     0     0   
>    jtreg:test/jaxp:tier4                                 0     0     0     0   
> ==============================
> 
> real	699m39.462s
> user	6626m8.448s
> sys	1110m43.704s
> 
> 
> There are interesting test failures on my machine, which I would address separately.

This pull request has now been integrated.

Changeset: 1f8af524
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/1f8af524ffe2d2d1469d8f07887b1f61c6e4d7b8
Stats:     20 lines in 4 files changed: 20 ins; 0 del; 0 mod

8273314: Add tier4 test groups

Reviewed-by: serb, iignatyev

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PR: https://git.openjdk.java.net/jdk/pull/5357