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When ASP.NET Core requests suddenly spike in latency while CPU stays low, the culprit is often thread‑pool starvation caused by sync‑over‑async blocking. This guide shows how to spot the symptoms, run targeted diagnostics, map findings to fixes, and know when to ask the runtime team.
When an ASP.NET Core application hosted on Kestrel receives a sudden burst of concurrent requests, the .NET ThreadPool's hill-climbing algorithm may not inject worker threads quickly enough, causing requests to queue and latency to spike. The core uncertainty is where the boundary lies between a transient burst that the pool should absorb and sustained starv
I am designing a Nim service where async request handlers (std/asyncdispatch) occasionally need to call a legacy blocking library. The documented escape hatch is std/threadpool's spawn, which returns a FlowVar[T], but a FlowVar cannot be awaited natively inside an async procedure. The options appear to be polling isReady in a loop with sleepAsync, blocking o
dotnet
csharp