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我的网站每天平均有20个访问者,但我最近收到了来自我的主机提供商的此消息.
我想弄清楚这一点.内容较少的网站如何获得20次访问会消耗那么多内存？
我不确定这是来自PHP,centos ……还是其他.但我在这里有一些输出,有人可能会确定问题的核心.
[root@site.name~]# free -m
@R_826_10586@l used free shared buffers cached
Mem: 498 489 9 0 1 19
-/+ buffers/cache: 469 29
Swap: 1022 180 842
top - 18:33:36 up 65 days,1 min,1 user,load average: 0.00,0.02,0.00 Tasks: 109 @R_826_10586@l,1 running,108 sleeping,0 stopped,0 zombie cpu(s): 1.0%us,0.3@L_944_8@y,0.0%ni,98.3%id,0.3%wa,0.0%hi,0.0@L_944_8@i,0.0@L_944_8@t Mem: 510868k @R_826_10586@l,503092k used,7776k free,1904k buffers Swap: 1047544k @R_826_10586@l,185096k used,862448k free,20956k cached PID USER PR NI VIRT RES SHR S %cpu %MEM TIME+ COMMAND 7435 MysqL 20 0 352m 7752 2852 S 1.0 1.5 56:23.52 MysqLd 17806 Nginx 20 0 50088 12m 2640 S 0.7 2.5 18:13.65 PHP-fpm 984 root 20 0 8940 372 272 S 0.3 0.1 0:29.68 sshd 3148 root 20 0 2692 1128 880 R 0.3 0.2 0:00.15 top 1 root 20 0 2900 416 292 S 0.0 0.1 0:07.29 init
这可能是什么问题？它有什么问题吗？
top - 14:34:29 up 66 days,20:02,2 users,0.00,0.00 Tasks: 110 @R_826_10586@l,109 sleeping,0 zombie cpu(s): 0.3%us,0.0@L_944_8@y,99.7%id,0.0%wa,504528k used,6340k free,3084k buffers Swap: 1047544k @R_826_10586@l,179784k used,867760k free,19532k cached PID USER PR NI VIRT RES SHR S %cpu %MEM TIME+ COMMAND 19041 Nginx 20 0 58672 22m 2660 S 0.0 4.5 24:00.18 PHP-fpm 17805 Nginx 20 0 58672 22m 2688 S 0.0 4.5 16:46.40 PHP-fpm 19040 Nginx 20 0 58776 17m 2684 S 0.0 3.6 24:27.53 PHP-fpm 19046 Nginx 20 0 53412 17m 2692 S 0.0 3.5 22:51.54 PHP-fpm 17796 Nginx 20 0 53604 16m 2648 S 0.0 3.3 15:14.62 PHP-fpm 19042 Nginx 20 0 52144 15m 2660 S 0.0 3.0 22:16.40 PHP-fpm 17186 Nginx 20 0 52208 15m 2656 S 0.0 3.0 25:22.13 PHP-fpm 24580 Nginx 20 0 50600 14m 2660 S 0.0 3.0 13:23.23 PHP-fpm 19014 Nginx 20 0 52084 14m 2692 S 0.0 3.0 22:16.57 PHP-fpm 19007 Nginx 20 0 58724 14m 2724 S 0.0 3.0 25:09.20 PHP-fpm 19032 Nginx 20 0 50156 14m 2692 S 0.0 3.0 24:25.53 PHP-fpm 17830 Nginx 20 0 50088 14m 2696 S 0.0 2.9 16:37.53 PHP-fpm 17816 Nginx 20 0 49996 14m 2768 S 0.0 2.9 18:57.37 PHP-fpm 19043 Nginx 20 0 50140 14m 2648 S 0.0 2.9 23:30.66 PHP-fpm 17806 Nginx 20 0 50088 14m 2656 S 0.0 2.9 19:38.99 PHP-fpm 17188 Nginx 20 0 50100 14m 2656 S 0.0 2.9 22:46.46 PHP-fpm 17817 Nginx 20 0 49836 14m 2660 S 0.0 2.9 18:29.45 PHP-fpm 17820 Nginx 20 0 48892 13m 2972 S 0.0 2.8 18:01.07 PHP-fpm 19030 Nginx 20 0 58824 13m 2652 S 0.0 2.8 23:40.90 PHP-fpm 17798 Nginx 20 0 48780 13m 2696 S 0.0 2.7 17:09.82 PHP-fpm 17187 Nginx 20 0 58672 13m 2716 S 0.0 2.7 23:04.46 PHP-fpm 17807 Nginx 20 0 52076 13m 2660 S 0.0 2.6 16:45.52 PHP-fpm 19029 Nginx 20 0 58924 12m 2688 S 0.0 2.6 24:00.66 PHP-fpm 17808 Nginx 20 0 58676 12m 2688 S 0.0 2.6 17:31.33 PHP-fpm 17799 Nginx 20 0 50088 12m 2660 S 0.0 2.6 17:41.13 PHP-fpm 19015 Nginx 20 0 58680 12m 2656 S 0.0 2.6 21:59.83 PHP-fpm 18295 Nginx 20 0 48512 12m 2692 S 0.0 2.6 16:57.08 PHP-fpm 19027 Nginx 20 0 48368 12m 2656 S 0.0 2.6 24:40.65 PHP-fpm 17819 Nginx 20 0 48208 12m 2656 S 0.0 2.5 16:43.87 PHP-fpm 19031 Nginx 20 0 49960 12m 2648 S 0.0 2.5 23:28.34 PHP-fpm 17832 Nginx 20 0 47884 12m 2660 S 0.0 2.5 16:04.87 PHP-fpm 17818 Nginx 20 0 47884 12m 2660 S 0.0 2.5 16:03.53 PHP-fpm 17831 Nginx 20 0 47864 12m 2696 S 0.0 2.5 16:43.48 PHP-fpm 18249 Nginx 20 0 47884 12m 2664 S 0.0 2.5 16:27.29 PHP-fpm 7435 MysqL 20 0 352m 7780 2872 S 0.3 1.5 62:00.00 MysqLd 19033 Nginx 20 0 42540 7368 2676 S 0.0 1.4 24:04.93 PHP-fpm 31015 root 20 0 12028 3708 2940 S 0.0 0.7 0:00.17 sshd 30826 postfix 20 0 13628 2260 1640 S 0.0 0.4 0:00.00 pickup 30995 root 20 0 5252 1704 1412 S 0.0 0.3 0:00.03 bash 31020 root 20 0 5256 1704 1416 S 0.0 0.3 0:00.03 bash 19028 Nginx 20 0 58668 1648 1528 S 0.0 0.3 9:11.84 PHP-fpm
目前,这些进程占用了VM的3/4以上,并且绝对没有任何好处.
因此,检查PHP-fpm池配置中的调优,例如默认的/etc/PHP-fpm.d/www.conf.对于像这样的小型VPS,我可能会在某处开始：
pm = dynamic pm.max_children = 10 pm.start_servers = 3 pm.min_spare_servers = 3 pm.max_spare_servers = 5
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