If your system spends too much time on overhead tasks, such as swapping memory, you might need to specify a lower number of threads.
如果系统将过多的时间花在存在开销的任务上(比如内存交换),则需要指定更少数量的线程。
Look for excessive CPU utilization and memory paging or swapping — these are performance killers.
注意过高的CPU利用率和内存分页或交换——这些都是性能杀手。
Our memory ballooning strategy is designed to prevent host swapping, instead directing memory pressure onto the guests.
我们的内存膨胀策略的思路是防止主机交换,把内存压力转移到其他客户上。
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