ChipsInfoQabout 2 hours ago
Instrumentation Costs and Fearless Metrics Strategies
1 min read
Brian Martin of IOP Systems detailed metrics library overheads at QCon San Francisco. Counter increments range from 5 nanoseconds uncontended to over 1 microsecond, a 200x difference. Histograms vary from 7 nanoseconds to double-digit microseconds, a 1400x gap. Techniques include atomic primitives, per-CPU sharding, lock-free histograms, and eBPF.
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