git: openjdk/jdk25u-dev: master: 2 new changesets

[Martin Doerr]

Changeset: 39733841
Branch: master
Author:    Johannes Bechberger <jbechberger at openjdk.org>
Committer: Martin Doerr <mdoerr at openjdk.org>
Date:      2026-01-23 12:50:12 +0000
URL:       https://git.openjdk.org/jdk25u-dev/commit/3973384117bb937bef874a5f73adf1ba3c0308e9

8366082: Improve queue size computation in CPU-time sampler

Backport-of: 002f936ef21943ff1c8c03618091793768e756ac

! src/hotspot/share/jfr/periodic/sampling/jfrCPUTimeThreadSampler.cpp
! src/hotspot/share/jfr/periodic/sampling/jfrCPUTimeThreadSampler.hpp
! src/hotspot/share/jfr/periodic/sampling/jfrThreadSampling.cpp
! src/hotspot/share/jfr/support/jfrThreadLocal.cpp
! src/hotspot/share/prims/whitebox.cpp
+ test/jdk/jdk/jfr/event/profiling/TestCPUTimeSampleQueueAutoSizes.java
! test/lib/jdk/test/whitebox/WhiteBox.java

Changeset: 38a616fd
Branch: master
Author:    David Briemann <dbriemann at openjdk.org>
Committer: Martin Doerr <mdoerr at openjdk.org>
Date:      2026-01-23 12:50:34 +0000
URL:       https://git.openjdk.org/jdk25u-dev/commit/38a616fdf22bc93398dd0fe61d14f4f13b4ce83f

8375530: PPC64: incorrect quick verify_method_data_pointer check causes poor performance in debug build

Backport-of: 30f39d88e5af36bb6db458c03215e9fa6a31d6f3

! src/hotspot/cpu/ppc/interp_masm_ppc_64.cpp