Long polling is a technique that optimizes traditional polling to reduce latency.
长轮询是一种优化传统轮询来降低延迟的技术。
2
This service is hosted by an Internet market data provider and has a potentially longlatency time.
此服务寄宿于某个Internet市场数据提供程序中,延迟时间可能很长。
3
Latency describes how long it takes for a given task to complete, whereas scalability describes how a program's performance varies under increasing load or given increased computing resources.