Epic: Pinned Object Heap tuning

[mangod9]

Tracking Epic for POH Tuning in .net 6

• [x] Add support in GC Perf infrastructure to be able to drill into per GC data https://github.com/dotnet/performance/pull/1594
• [x] Fixing PerfView to support POH properly so that we can use it to analyze POH performance. https://github.com/microsoft/perfview/pull/1295 https://github.com/microsoft/perfview/pull/1379 https://cshung.github.io/posts/poh-tuning-1/
• [x] Fix GCPerfSim for allocating in POH https://github.com/dotnet/performance/pull/1561
• [x] Fix GCPerfSim to allocate on POH with the right proportion () https://github.com/dotnet/performance/pull/1582 https://github.com/dotnet/performance/pull/1704 https://cshung.github.io/posts/poh-tuning-2/
• [x] Experiment, understand and describe the object lifetime for objects allocated in the GCPerfSim. https://cshung.github.io/posts/poh-tuning-3/
• [ ] Initial experiment to compare pinning using GCHandle, and pinning using POH
• [ ] Experiment, understand and describe the performance characteristics of the GC when the survival ratio changes.
• [x] Using POH to improve performance for static and string literals. https://github.com/dotnet/runtime/pull/47651 https://github.com/dotnet/runtime/pull/48371

[ghost]

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