它占用ram内存服务器的速度变慢
PID用户PR NI VIRT RES SHR s％CPU％MEM TIME + COMMAND
14947 apache 20 0 367m 40m 5408 S 0.0 0.1 0:04.21 /usr/sbin/httpd
14930 apache 20 0 367m 40m 5200 S 6.3 0.1 0:05.08 /usr/sbin/httpd
14941 apache 20 0 367m 40m 4912 S 0.0 0.1 0:05.00 /usr/sbin/httpd
14971 apache 20 0 367m 40m 4624 S 0.0 0.1 0:05.89 /usr/sbin/httpd
14970 apache 20 0 367m 40m 4720 S 0.0 0.1 0:04.61 /usr/sbin/httpd
14938 apache 20 0 461m 39m 4692 S 0.0 0.1 0:04.38 /usr/sbin/httpd
14944 apache 20 0 367m 39m 4576 S 0.0 0.1 0:04.81 /usr/sbin/httpd
14937 apache 20 0 367m 39m 4540 S 0.0 0.1 0:04.49 /usr/sbin/httpd
14954 apache 20 0 461m 39m 4668 S 7.0 0.1 0:04.78 /usr/sbin/httpd
14955 apache 20 0 365m 38m 4676 S 0.0 0.1 0:04.92 /usr/sbin/httpd
14936 apache 20 0 458m 37m 4624 S 0.0 0.1 0:04.54 /usr/sbin/httpd
14935 apache 20 0 363m 36m 4952 S 6.0 0.1 0:04.50 /usr/sbin/httpd