https://blog.turboawesome.win/tags/sampling/ Recent content in Sampling on Bits, Trades & Systems Hugo en-us Wed, 09 Oct 2024 13:00:00 +0000 https://blog.turboawesome.win/2024/10/tail-based-trace-sampling-why-head-sampling-is-usually-wrong/ Wed, 09 Oct 2024 13:00:00 +0000 https://blog.turboawesome.win/2024/10/tail-based-trace-sampling-why-head-sampling-is-usually-wrong/ Head-based sampling decides whether to trace a request at the start. Tail-based sampling decides after the request completes. For finding latency outliers and errors, tail-based sampling is almost always what you want — and almost never what gets implemented.