[NS] 买了一台服务器TOP显示2核4G，但是NQ测试2核2G。

这是什么问题？详细配置情况如下top-17:03:29up5:45,3users,loadaverage:0.00,0.00,0.00Tasks:107total,1running,106sleeping,0stopped,0zombie%Cpu(s):0.0us,0.0sy,0.0ni,99.8id,0.0wa,