git: openjdk/jdk: master: 8372584: [Linux]: Replace reading proc to get thread user CPU time with clock_gettime

[Kevin Walls]

Changeset: 858d2e43
Branch: master
Author:    Jonas Norlinder <jnorlinder at openjdk.org>
Committer: Kevin Walls <kevinw at openjdk.org>
Date:      2025-12-03 09:35:59 +0000
URL:       https://git.openjdk.org/jdk/commit/858d2e434dd4eb8aa94784bb1cd115554eec5dff

8372584: [Linux]: Replace reading proc to get thread user CPU time with clock_gettime

Reviewed-by: dholmes, kevinw, redestad

! src/hotspot/os/linux/os_linux.cpp
! src/hotspot/os/linux/os_linux.hpp
+ test/micro/org/openjdk/bench/vm/runtime/ThreadMXBeanBench.java