Digital & Data

지연 시간

정의

데이터 패킷이 출발지에서 전송되어 목적지에 도착할 때까지의 시간 지연으로, 보통 밀리초(ms)로 측정한다.

설명

Transatlantic fiber latency is roughly 70–80 ms due to the physical speed of light in glass (~200,000 km/s). Satellite internet adds ~600 ms for geostationary orbits, making real-time gaming impractical. For interactive applications, latency below 20 ms feels instantaneous; above 150 ms, users notice delays. Latency is distinct from bandwidth: a high-bandwidth pipe can still have high latency.

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