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我的Ubuntu服务器也是这样,不过好像有时间段的,有几天不正常过几天就好了,然后一个月内就没有问题,差不多过一个月又是这样,以前没有开虚拟主机的时候没有问题,所以怀疑是apache的问题:
下面是top时按照SWAP排序:可以看到apache明显比其他的服务器高很多,而且这是我优化以后的结果,前几天没有优化的时候是每个120m左右。现在的SWAP算正常的,不稳定的时候used大概是free的两倍。
Tasks: 512 total, 2 running, 510 sleeping, 0 stopped, 0 zombie
Cpu(s): 19.0% us, 3.0% sy, 4.4% ni, 65.7% id, 7.1% wa, 0.1% hi, 0.7% si
Mem: 2052244k total, 2009992k used, 42252k free, 14648k buffers
Swap: 1951856k total, 741628k used, 1210228k free, 492596k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ SWAP COMMAND
6816 mysql 16 0 565m 57m 2696 S 0.3 2.9 124:48.79 507m mysqld
10641 panjy 34 19 509m 353m 3712 S 77.6 17.6 1939:12 155m python
11375 www-data 16 0 109m 21m 8040 S 0.0 1.1 0:00.22 87m apache2
9327 www-data 16 0 109m 21m 8136 S 0.0 1.1 0:00.28 87m apache2
11385 www-data 16 0 109m 21m 8176 S 0.0 1.1 0:00.40 87m apache2
10968 www-data 16 0 102m 15m 8084 S 0.0 0.8 0:00.19 87m apache2
7906 www-data 16 0 103m 16m 8116 S 0.0 0.8 0:00.18 87m apache2
7879 root 16 0 100m 13m 7436 S 0.3 0.7 0:02.28 86m apache2
11447 www-data 16 0 100m 13m 7544 S 0.0 0.7 0:00.01 86m apache2
11222 www-data 16 0 105m 19m 8320 S 0.0 1.0 0:00.76 86m apache2
12275 www-data 18 0 100m 13m 7492 S 0.0 0.7 0:00.00 86m apache2
12277 www-data 18 0 100m 13m 7492 S 0.0 0.7 0:00.00 86m apache2
7918 www-data 15 0 100m 13m 7508 S 0.0 0.7 0:00.01 86m apache2
7919 www-data 16 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
7920 www-data 15 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
7921 www-data 15 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
7922 www-data 15 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
8657 www-data 15 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
8667 www-data 15 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
9242 www-data 15 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
9769 www-data 15 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
10083 www-data 15 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
10310 www-data 16 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
11376 www-data 16 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
11560 www-data 16 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
11614 www-data 16 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
11623 www-data 16 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
11637 www-data 16 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
11638 www-data 16 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
11642 www-data 16 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
11645 www-data 16 0 100m 13m 7508 S 0.0 0.7 0:00.00 86m apache2
dmesg前面的都是系统启动的内容,我想没有什么用,就不发了,这个是后面的部分。
[ 5011.093270] ip_tables: (C) 2000-2002 Netfilter core team
[104298.196088] TCP: Treason uncloaked! Peer 202.108.130.138:64327/80 shrinks window 1989837571:1989845176. Rep
aired.
[197651.374072] saslauthd[7071]: segfault at ffffffffab5f9180 rip 00002aaaabcb7d80 rsp 00007fffff9ee248 error 4
[197662.745798] saslauthd[7070]: segfault at ffffffffab5f9180 rip 00002aaaabcb7d80 rsp 00007fffff9ee248 error 4
[206465.576897] KERNEL: assertion (cnt <= tp->packets_out) failed at net/ipv4/tcp_input.c (1542)
[309438.338013] saslauthd[7068]: segfault at ffffffffab5f9180 rip 00002aaaabcb7d80 rsp 00007fffff9ee248 error 4
[309439.123949] saslauthd[7073]: segfault at ffffffffab5f9180 rip 00002aaaabcb7d80 rsp 00007fffff9ee248 error 4
[309440.231172] saslauthd[7072]: segfault at ffffffffab5f9180 rip 00002aaaabcb7d80 rsp 00007fffff9ee248 error 4
[320102.663685] ibm_acpi: ec object not found
[352573.096712] KERNEL: assertion (cnt <= tp->packets_out) failed at net/ipv4/tcp_input.c (1542)
[352573.104295] KERNEL: assertion (cnt <= tp->packets_out) failed at net/ipv4/tcp_input.c (1542)
[416142.323578] Losing some ticks... checking if CPU frequency changed. |
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