RFR: 8317453: NMT: Performance benchmarks are needed to measure speed and memory

[Gerard Ziemski]

Please review this addition of an internal benchmark, mostly of interest to those working with NMT.

This benchmark allows us to record a pattern of memory allocation operations (i.e. `malloc`, `realloc` and `free`) as well as the virtual memory allocations (i.e. `VirtualMemoryTracker::add_reserved_region`, etc.) and record those into files.

Later we can use that recording to _play back_ the pattern with different code or settings to compare the performance.

The goal of this benchmark is for anyone working on NMT to be able to measure and prove whether their improvement helps or regresses the performance.

### To use it:

To record pattern of allocations of memory calls:

`NMTRecordMemoryAllocations=0x7FFFFFFF ./build/macosx-aarch64-server-release/xcode/build/jdk/bin/java -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary -jar build/macosx-aarch64-server-release/images/jdk/demo/jfc/J2Ddemo/J2Ddemo.jar`

OR to record pattern of allocations of virtual memory calls:

`NMTRecordVirtualMemoryAllocations=0x7FFFFFFF ./build/macosx-aarch64-server-release/xcode/build/jdk/bin/java -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary -jar build/macosx-aarch64-server-release/images/jdk/demo/jfc/J2Ddemo/J2Ddemo.jar`

This will result in the file:
-  hs_nmt_pid22770_allocs_record.log (is the chronological record of the the desired operations)
OR
- hs_nmt_pid22770_virtual_allocs_record.log (is the chronological record of the desired operations)

And 2 additional files:
- hs_nmt_pid22770_info_record.log (is the record of default NMT memory overhead and the NMT state)
- hs_nmt_pid22770_threads_record.log (is the record of thread names that can be retrieved later when processing)


then to actually run the benchmark:

NMTBenchmarkRecordedPID=22770 ./build/macosx-aarch64-server-release/xcode/build/jdk/bin/java -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary

### Usage:

See the issue for more details and the design document.

-------------

Commit messages:
 - fixes after merge
 - Merge remote-tracking branch 'upstream/master' into JDK-8317453
 - use hotspot existing Mutex for the lock
 - Merge remote-tracking branch 'upstream/master' into JDK-8317453
 - simplify
 - remove fancy features to make thr review easier
 - add missed virtualMemoryTracker ops
 - tweak raw_malloc_size
 - tweak realloc
 - add headers
 - ... and 1 more: https://git.openjdk.org/jdk/compare/684d3b33...c411ed5d

Changes: https://git.openjdk.org/jdk/pull/23786/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23786&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317453
  Stats: 1085 lines in 11 files changed: 1076 ins; 0 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/23786.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23786/head:pull/23786

PR: https://git.openjdk.org/jdk/pull/23786