我的服务器变慢了，我不知道为什么。
从顶部打印：
top - 14:32:50 up 639 days, 6:30, 1 user, load average: 67.93, 70.63, 79.85
Tasks: 245 total, 1 running, 244 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.9% us, 0.5% sy, 0.0% ni, 94.5% id, 1.0% wa, 0.0% hi, 0.0% si
Mem: 1034784k total, 1021256k used, 13528k free, 4360k buffers
Swap: 1023960k total, 635752k used, 388208k free, 36632k cached
vmstat 10 6
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in …