实时的要求常常是时间和缓冲空间的折衷。
Often the real-time requirement is a tradeoff of time and buffer space.
mytop 还提供了一个有关关键字缓冲区和查询缓存效率的实时数据和历史数据，以及有关正在运行的查询的统计信息。
mytop also provides real-time and historical data about key-buffer and query-cache efficiency, and statistics about the queries being run.
通过构造出质系动量系统碰撞模型和采用线性编址双缓冲图形绘制技术，实现了质系动量定理的实时仿真。
By constructing momentum theorem collision model and employing addressable, double-buffered graphic rendering technology and the real-time simulation of momentum theorem is implemented.
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