Distribute the count quantity to deferent course and host CPU, balance system load, reduce the burden of web net, advance the whole performance of the system.
Distribute the count quantity to deferent course and host CPU, balance system load, reduce the burden of web net, advance the whole performance of the system.
将整个系统的计算量合理分配于不同的进程和主机，均衡系统负载，降低网络负担，提高整体性能。