The SERT::Sort workload report regression ~10% for run on the Xeon 6780E with Ubuntu 24.04. The guilty commit was merged to most JDK ws.
Reported scores for JDK21/22/master similar and looks as:
v21.0.1: score for 100% load: 1,055,597.416
v21.0.2: score for 100% load: 924,327.136

For JDK21 this issue was introduced by commit:
commit ffa6fe561c6bcba14b0da3cdab001fc2a7c2c5e2
Merge: 7c1c76d5874 759298364c6
Author: robm <rob.mckenna@oracle.com>
Date: Wed Nov 29 20:38:59 2023 +0000
    Merge

For JDK22 this issue was introduced by commit:
commit b2cc1890ff4d2e5404e153ecba5e83f1bcdd6fa7
Merge: f1802d53009 c7f1c97312f
Author: Henry Jen <henryjen@openjdk.org>
Date: Wed Jan 17 01:41:13 2024 +0000
    Merge
    Reviewed-by: erikj

For master this issue were added as:
commit 2063bb8ffabd6096f547ec6da979cfcf68a56ba3
Merge: d8b63370f30 bf7bd9a16c1
Author: Henry Jen <henryjen@openjdk.org>
Date: Wed Jan 17 01:41:52 2024 +0000
    Merge
    Reviewed-by: erikj

The hot methods looks similar before/after commits:
Function / Call Stack CPU Time
java::util::DualPivotQuicksort::sort 51.7%
java::util::DualPivotQuicksort::mixedInsertionSort 43.0%
jlong_disjoint_arraycopy 2.9%
Unsafe_Unpark 1.1%
Unsafe_Park 0.7%

But compiled code looks different.