Performing JIT compilations that delay start-up yet do not significantly improve the application's long-term performance are particularly wasteful.
如果JIT编译会延迟启动又不能显著改善应用程序的长期性能，则执行这种编译就非常浪费。
For this reason it is useful to group similar tasks together thus avoiding the start-up delay of each.
为此将相似的任务组织在一起避免相互延迟是有用的。
Thus it will not only reduce the start-up delay of the clients' player in the event of a cache hit but also save network bandwidth to some extent.
通过把流媒体缓存配置在客户端和服务器之间，以基于代理服务器机制实现，既能降低客户端播放器的启动延迟时间，又能节约部分网络带宽。
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