What's new in version 0.33.x

The following new features and notable changes since version 0.32.0 are included in this release:

• The maximum number of JIT compilation threads is increased
• Control groups v2 support

Features and changes

The maximum number of JIT compilation threads is increased

The maximum number of JIT compilation threads is increased from 7 to 15. You can set the number of compilation threads to be used by specifying the -XcompilationThreads command line option.

Control groups v2 support

The Linux kernel has two variants of control groups (cgroups): v1 and v2. Many Linux operating systems are gradually transitioning from cgroups v1 to v2 as their default choice. Now, OpenJ9 has added cgroups v2 support, which is identical to the support for cgroups v1.