BenchmarkDotNet v0.13.12, Windows 10 (10.0.17763.5576/1809/October2018Update/Redstone5) (Hyper-V)
Intel Xeon CPU E5-2697 v3 2.60GHz, 1 CPU, 2 logical cores and 1 physical core
.NET SDK 8.0.300
  [Host]     : .NET 8.0.5 (8.0.524.21615), X64 RyuJIT AVX2
  DefaultJob : .NET 8.0.5 (8.0.524.21615), X64 RyuJIT AVX2

Method	Held	Mean	Error	StdDev	Allocated
CheckLockHeld	False	2.665 ns	0.0639 ns	0.0567 ns	-
CheckLockHeld	True	2.738 ns	0.0888 ns	0.0787 ns	-