首先登录主机，执行top命令，发现CPU资源几乎消耗殆尽，存在多个占用CPU较高的进程，但内存和I/O占用率较低。具体情况如下：last pid: 26136; load averages: 8.89, 8.91, 8.12 216 processes: 204 sleeping, 8 running, 4 on cpu CPU states: 0.6% idle, 97.3% user, 1.8% kernel, 0.2% iowait, 0.0% swap Memory: 8192M real, 1166M free, 14M swap in use, 8179M swap free PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND 25725 oracle 1 50 0 4550M 4508M cpu2 12:23 11.23% oracle 25774 oracle 1 41 0 4550M 4508M run 14:25 10.66% oracle 26016 oracle 1 31 0 4550M 4508M run 5:41 10.37% oracle 26010 oracle 1 41 0 4550M 4508M run 4:40 9.81% oracle 26014 oracle 1 51 0 4550M 4506M cpu6 4:19 9.76% oracle 25873 oracle 1 41 0 4550M 4508M run 12:10 9.45% oracle 25723 oracle 1 50 0 4550M 4508M run 15:09 9.40% oracle 26121 oracle 1 41 0 4550M 4506M cpu0 1:13 9.28% oracle 25745 oracle 1 41 0 4551M 4512M run 9:33 9.28% oracle 26136 oracle 1 41 0 4550M 4506M run 0:06 5.61% oracle O下载自：http://www.javaxxz.com最方便的Java学习社区