MutexStats (proto)
admin.v3.MutexStats
Proto representation of the statistics collected upon absl::Mutex contention, if Envoy is run
under --enable-mutex-tracing. For more information, see the absl::Mutex
[docs](https://abseil.io/about/design/mutex#extra-features).
NB: The wait cycles below are measured by absl::base_internal::CycleClock, and may not
correspond to core clock frequency. For more information, see the CycleClock
[docs](https://github.com/abseil/abseil-cpp/blob/master/absl/base/internal/cycleclock.h).
{
  "num_contentions": ...,
  "current_wait_cycles": ...,
  "lifetime_wait_cycles": ...
}
- num_contentions
- (uint64) The number of individual mutex contentions which have occurred since startup. 
- current_wait_cycles
- (uint64) The length of the current contention wait cycle. 
- lifetime_wait_cycles
- (uint64) The lifetime total of all contention wait cycles.