git: openjdk/jdk13u-dev: 8185005: Improve performance of ThreadMXBean.getThreadInfo(long ids[], int maxDepth)

[Yuri Nesterenko]

Changeset: 42c55e7c
Author:    Sergey Nazarkin <snazarki at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2021-10-01 14:29:20 +0000
URL:       https://git.openjdk.java.net/jdk13u-dev/commit/42c55e7cc91a729233ed026cc26bf7d02b81ed06

8185005: Improve performance of ThreadMXBean.getThreadInfo(long ids[], int maxDepth)

Reviewed-by: yan
Backport-of: 6ccf3351d7eef4b6a2ef8b33e4173416cfdcefd5

! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/runtime/mutexLocker.hpp
! src/hotspot/share/runtime/threadSMR.cpp
+ src/hotspot/share/services/threadIdTable.cpp
+ src/hotspot/share/services/threadIdTable.hpp