ASP.NET Core: CPU Pegged at 100%

[commonsensesoftware]

Symptoms

After a non-deterministic amount of time and/or load, CPU utilization spikes and seemingly remains pegged at 100%.

Triage

After capturing and reviewing ETL rundowns of the host process, this appears to be caused by runtime manipulation of non-concurrent dictionaries.

[commonsensesoftware]

Recommendation

Upon further investigation and dicussion, API information should be pre-aggregated and placed in dictionaries during startup such that runtime manipulation is not required.