XThreads.executeSynchronized is a global lock blocking multiple storageManagers writing in a single JVM

[54446776]

Environment Details

• MicroStream Version: 7.x and 8.0
• JDK version:
• OS:
• Used frameworks:

Describe the bug

Working with Microstream in a multi-threaded environment, and use XThreads.executeSynchronized according Microstream doc, which lock a global object in JVM (XThreads class GLOBAL_LOCK static object).
When working with multiple storageManagers environment and use XThreads.executeSynchronized method, all persistence operations will race GLOBAL_LOCK, even operations are irrelevant, cause low performance.
It will be good to limit the lock object scope to each storageManager.

PS: also some configurations are JVM global, such enable Housekeeping GC. will be good to change to not-global.

To Reproduce

Expected behavior

Screenshots

Additional context