Description of problem:
I noticed, that on ppc64le the test perl/Regression/bz548249-threads-leak-memory-when-detached takes very long time to run - around 20 - 30 times as long as on other architectures. While on other archs the test runs for 2-3 minutes, on ppc64le it often hits the 60min timeout and is being terminated by the watchdog. Evenn if it does not, it takes an order of magnitude longer time to finish than elsewhere:

https://beaker.engineering.redhat.com/tasks/executed?recipe_task_id=157417550&recipe_task_id=157417624&recipe_task_id=157417635&recipe_task_id=157417572&recipe_task_id=157417646&recipe_task_id=157417657&recipe_task_id=157417583&recipe_task_id=157417561&old_pkg_tasks=157417572,157417583,157417561,157417550&new_pkg_tasks=157417657,157417646,157417624,157417635

Quick investigation showed that the thread creation is slow on the architecture in question.

Version-Release number of selected component (if applicable):
perl-5.32.1-480.el9

How reproducible:
Always

Steps to Reproduce:
1. run the test on all supported architectures
2.
3.

Actual results:
ppc64le time is way longer (20 - 30 times or so) than the rest

Expected results:

Additional info: