Quill vs spdlog: Which C++ Logger Is Better for Low-Latency Applications? (opens in new tab)

Logging has a habit of ending up in the places you care about most. It starts as a few lines for visibility. Then those lines appear in request handling, market-data processing, matching loops, telemetry pipelines, and other code where predictable latency matters. At that point, a log statement is no longer just observability. It is work running on the same thread you are trying to keep fast. A line like this can look harmless: LOG_INFO(logger, "order_id={} price={}", order_id, price); The im...