AIX jdk20 - extended.openjdk test jobs abort due to timeout

[sophia-guo]

jdk19 ppc64_aix testing need to run on aix720 machines. There are only two machines available https://ci.adoptium.net/label/ci.role.test&&hw.arch.ppc64&&sw.os.aix&&sw.os.aix.7_2/, which means maximum parallel = 2. jdk19+ extended.openjdk tests jobs will consistently abort due to timeout

https://ci.adoptium.net/job/Test_openjdk20_hs_extended.openjdk_ppc64_aix_testList_0/
https://ci.adoptium.net/job/Test_openjdk19_hs_extended.openjdk_ppc64_aix_testList_0/

[smlambert]

I see you are excluding some failing test cases, which may help reduce the length of time it takes to complete the run. Also, we can/should override the TIME_LIMIT for these jobs, at least to ensure they do not abort during the release period.

[sophia-guo]

Update the configuration of default value to 15 of extended.openjdk aix jdk20. Rerun to see if it's enough. https://ci.adoptium.net/job/Test_openjdk20_hs_extended.openjdk_ppc64_aix_testList_0/21/ . If needed can set context.string(name: 'TIME_LIMIT', value: '**') for jdk20 aix.

[adamfarley]

Timeouts also seen on jdk21 when running extended.openjdk on AIX. Example1, Example2.

Tests ran on test-osuosl-aix72-ppc64-1 and test-osuosl-aix72-ppc64-1, and I've included an example failure below.

11:42:31  ACTION: junit -- Error. Agent error: java.lang.Exception: Agent 22 timed out with a timeout of 960 seconds; check console log for any additional details
11:42:31  REASON: User specified action: run junit BlockingSocketOps 
11:42:31  TIME:   960.553 seconds
11:42:31  messages:
11:42:31  command: junit BlockingSocketOps