我在管理的一个新 VPS 系统中遇到了相当奇怪的行为。我已经遇到这个问题大约一个月了，我尽我所能找出导致问题的原因，但都没有成功。
规格：CPU：专用 4 核、RAM：10GB、交换：6GB、vm.swappiness：30、操作系统：Centos 7.8、Cpanel 90
我无法将“峰值”（高达 80）与任何其他行为（用户或服务器）联系起来，而且它们是随机发生的。有时它们会持续几分钟，有时则会持续几个小时。
ps 输出：
Output from ps:
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 2 0.0 0.0 0 0 ? S Sep04 0:01 [kthreadd]
root 4 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kworker/0:0H]
root 6 0.0 0.0 0 0 ? S Sep04 4:30 \_ [ksoftirqd/0]
root 7 0.0 0.0 0 0 ? S Sep04 0:47 \_ [migration/0]
root 8 0.0 0.0 0 0 ? S Sep04 0:00 \_ [rcu_bh]
root 9 0.2 0.0 0 0 ? S Sep04 112:54 \_ [rcu_sched]
root 10 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [lru-add-drain]
root 11 0.0 0.0 0 0 ? S Sep04 0:29 \_ [watchdog/0]
root 12 0.0 0.0 0 0 ? S Sep04 0:27 \_ [watchdog/1]
root 13 0.0 0.0 0 0 ? S Sep04 0:56 \_ [migration/1]
root 14 0.0 0.0 0 0 ? S Sep04 7:28 \_ [ksoftirqd/1]
root 16 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kworker/1:0H]
root 17 0.0 0.0 0 0 ? S Sep04 0:32 \_ [watchdog/2]
root 18 0.0 0.0 0 0 ? S Sep04 0:54 \_ [migration/2]
root 19 0.0 0.0 0 0 ? S Sep04 5:12 \_ [ksoftirqd/2]
root 21 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kworker/2:0H]
root 22 0.0 0.0 0 0 ? S Sep04 0:32 \_ [watchdog/3]
root 23 0.0 0.0 0 0 ? S Sep04 0:47 \_ [migration/3]
root 24 0.0 0.0 0 0 ? S Sep04 7:26 \_ [ksoftirqd/3]
root 26 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kworker/3:0H]
root 28 0.0 0.0 0 0 ? S Sep04 0:00 \_ [kdevtmpfs]
root 29 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [netns]
root 30 0.0 0.0 0 0 ? S Sep04 0:01 \_ [khungtaskd]
root 31 0.0 0.0 0 0 ? S< Sep04 0:01 \_ [writeback]
root 32 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kintegrityd]
root 33 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [bioset]
root 34 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [bioset]
root 35 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [bioset]
root 36 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kblockd]
root 37 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [md]
root 38 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [edac-poller]
root 39 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [watchdogd]
root 45 0.1 0.0 0 0 ? S Sep04 46:46 \_ [kswapd0]
root 46 0.0 0.0 0 0 ? SN Sep04 0:00 \_ [ksmd]
root 47 0.0 0.0 0 0 ? SN Sep04 0:07 \_ [khugepaged]
root 48 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [crypto]
root 56 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kthrotld]
root 58 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kmpath_rdacd]
root 59 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kaluad]
root 61 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kpsmoused]
root 63 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [ipv6_addrconf]
root 77 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [deferwq]
root 113 0.0 0.0 0 0 ? S Sep04 0:05 \_ [kauditd]
root 253 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [ata_sff]
root 254 0.0 0.0 0 0 ? S Sep04 0:00 \_ [scsi_eh_0]
root 255 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [scsi_tmf_0]
root 256 0.0 0.0 0 0 ? S Sep04 0:00 \_ [scsi_eh_1]
root 257 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [mpt_poll_0]
root 258 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [mpt/0]
root 259 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [scsi_tmf_1]
root 267 0.0 0.0 0 0 ? S Sep04 1:52 \_ [irq/16-vmwgfx]
root 268 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [ttm_swap]
root 275 0.0 0.0 0 0 ? S Sep04 0:00 \_ [scsi_eh_2]
root 276 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [scsi_tmf_2]
root 310 0.0 0.0 0 0 ? S Sep04 10:59 \_ [jbd2/sda1-8]
root 311 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [ext4-rsv-conver]
root 425 0.0 0.0 0 0 ? S< Sep04 0:05 \_ [kworker/3:1H]
root 426 0.0 0.0 0 0 ? S< Sep04 0:07 \_ [kworker/0:1H]
root 538 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kdmflush]
root 539 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [bioset]
root 545 0.1 0.0 0 0 ? R Sep04 84:32 \_ [jbd2/dm-0-8]
root 546 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [ext4-rsv-conver]
root 552 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [kdmflush]
root 553 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [bioset]
root 560 0.0 0.0 0 0 ? S Sep04 2:25 \_ [jbd2/dm-1-8]
root 561 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [ext4-rsv-conver]
root 640 0.0 0.0 0 0 ? S< Sep04 0:06 \_ [kworker/1:1H]
root 868 0.0 0.0 0 0 ? S< Sep04 2:20 \_ [loop0]
root 870 0.0 0.0 0 0 ? S Sep04 0:15 \_ [jbd2/loop0-8]
root 871 0.0 0.0 0 0 ? S< Sep04 0:00 \_ [ext4-rsv-conver]
root 976 0.0 0.0 0 0 ? S< Sep04 0:07 \_ [kworker/2:1H]
root 39821 0.0 0.0 0 0 ? S 20:30 0:00 \_ [kworker/1:2]
root 48272 0.0 0.0 0 0 ? S 21:15 0:00 \_ [kworker/3:2]
root 51294 0.0 0.0 0 0 ? S 21:32 0:00 \_ [kworker/3:1]
root 51344 0.0 0.0 0 0 ? S 21:32 0:00 \_ [kworker/0:2]
root 53041 0.0 0.0 0 0 ? S 21:42 0:00 \_ [kworker/u256:1]
root 53483 0.0 0.0 0 0 ? S 21:45 0:00 \_ [kworker/2:1]
root 54288 0.0 0.0 0 0 ? S 21:49 0:00 \_ [kworker/1:1]
root 54724 0.0 0.0 0 0 ? S 21:51 0:00 \_ [kworker/2:0]
root 55446 0.0 0.0 0 0 ? S 21:55 0:00 \_ [kworker/0:0]
root 55448 0.0 0.0 0 0 ? S 21:55 0:00 \_ [kworker/u256:0]
root 55930 0.0 0.0 0 0 ? S 21:59 0:00 \_ [kworker/3:0]
root 55931 0.0 0.0 0 0 ? S 21:59 0:00 \_ [kworker/3:3]
root 56120 0.0 0.0 0 0 ? S 22:00 0:00 \_ [kworker/2:2]
root 56195 0.0 0.0 0 0 ? S 22:00 0:00 \_ [kworker/0:1]
root 56286 0.0 0.0 0 0 ? S 22:00 0:00 \_ [kworker/u256:2]
root 1 0.0 0.0 199580 3064 ? Ss Sep04 34:49 /usr/lib/systemd/systemd --switched-root --system --deserialize 22
root 391 0.0 0.5 121472 56420 ? Ss Sep04 18:00 /usr/lib/systemd/systemd-journald
root 413 0.0 0.0 264108 0 ? Ss Sep04 0:00 /usr/sbin/lvmetad -f
root 420 0.0 0.0 44976 84 ? Ss Sep04 0:01 /usr/lib/systemd/systemd-udevd
root 582 0.0 0.0 55532 344 ? S<sl Sep04 0:28 /sbin/auditd
root 606 0.0 0.0 21688 476 ? Ss Sep04 2:23 /usr/sbin/irqbalance --foreground
root 608 0.0 0.0 99688 0 ? Ss Sep04 0:00 /usr/bin/VGAuthService -s
root 610 0.0 0.0 24544 1020 ? Ss Sep04 3:58 /usr/lib/systemd/systemd-logind
root 612 0.0 0.0 229640 1556 ? Ss Sep04 42:32 /usr/bin/vmtoolsd
polkitd 613 0.0 0.0 612472 1096 ? Ssl Sep04 1:49 /usr/lib/polkit-1/polkitd --no-debug
root 620 0.0 0.0 52872 384 ? Ss Sep04 0:00 /usr/sbin/smartd -n -q never
dbus 621 0.0 0.0 58400 1124 ? Ss Sep04 9:25 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
rpc 637 0.0 0.0 69280 60 ? Ss Sep04 0:05 /sbin/rpcbind -w
chrony 644 0.0 0.0 117808 656 ? S Sep04 0:07 /usr/sbin/chronyd
root 677 0.0 0.0 25908 200 ? Ss Sep04 0:00 /usr/sbin/atd -f
root 681 0.0 0.0 126420 380 ? Ss Sep04 0:29 /usr/sbin/crond -n
root 56123 0.0 0.0 184932 1832 ? S 22:00 0:00 \_ /usr/sbin/CROND -n
sfragi5 56139 0.0 0.1 474804 17736 ? Ss 22:00 0:00 | \_ /opt/cpanel/ea-php74/root/usr/bin/php /home/sfragi5/public_html/wp-content/plugins/prisma_woocommerce_bridge/toprismawin.php
mailnull 56170 0.0 0.0 77296 3576 ? S 22:00 0:00 | \_ /usr/sbin/sendmail -FCronDaemon -i -odi -oem -oi -t -f sfragi5
root 56453 0.0 0.0 184928 2132 ? S 22:02 0:00 \_ /usr/sbin/CROND -n
root 56457 0.0 0.0 113284 1200 ? Ss 22:02 0:00 \_ /bin/bash -c /etc/nginx/utilities/https_vhosts.sh >> /dev/null 2>&1
root 56460 0.0 0.0 113284 1404 ? S 22:02 0:00 \_ /bin/bash /etc/nginx/utilities/https_vhosts.sh
root 56463 0.0 0.0 108056 352 ? S 22:02 0:00 \_ sleep 15
root 1040 0.0 0.0 111436 272 ? Ss Sep04 0:00 /usr/sbin/sshd -D
root 23305 0.0 0.0 159860 3208 ? Ss 09:12 0:00 \_ sshd: sfragi5 [priv]
sfragi5 23309 0.0 0.0 159992 2012 ? S 09:12 0:33 | \_ sshd: sfragi5@notty
sfragi5 23311 0.0 0.0 70752 2124 ? Ss 09:12 0:12 | \_ /usr/libexec/openssh/sftp-server
root 23351 0.0 0.0 159860 3204 ? Ss 09:12 0:00 \_ sshd: sfragi5 [priv]
sfragi5 23354 0.0 0.0 159860 1720 ? S 09:12 0:00 | \_ sshd: sfragi5@notty
root 56742 0.0 0.0 159860 3612 ? Ss 11:39 0:00 \_ sshd: trikaliotis [priv]
trikali+ 56751 0.0 0.0 159860 2068 ? S 11:39 0:02 | \_ sshd: trikaliotis@notty
trikali+ 56753 0.0 0.0 70684 2024 ? Ss 11:39 0:00 | \_ /usr/libexec/openssh/sftp-server
root 56778 0.0 0.0 159860 3604 ? Ss 11:39 0:00 \_ sshd: trikaliotis [priv]
trikali+ 56784 0.0 0.0 159860 1844 ? S 11:39 0:00 \_ sshd: trikaliotis@notty
root 1042 0.0 0.0 572396 756 ? Ssl Sep04 6:22 /usr/bin/python2 -Es /usr/sbin/tuned -l -P
root 1049 0.0 0.2 655492 30148 ? Ssl Sep04 11:26 /usr/sbin/rsyslogd -n
root 1327 0.0 0.2 116852 25720 ? S Sep04 7:45 cpsrvd (SSL) - waiting for connections
root 1359 0.0 0.0 129452 2440 ? Ss Sep04 1:44 dnsadmin - dormant mode
root 1429 0.0 0.0 129984 2700 ? S Sep04 1:59 cpdavd - accepting connections on: 2079, 2080, 2077, 2078 (dormant)
root 1495 0.0 0.1 70196 14928 ? S Sep04 28:25 tailwatchd
root 2245 0.0 0.0 151936 9916 ? S Sep04 2:24 cPhulkd - processor
root 86596 0.0 0.0 151284 9388 ? S 13:51 0:02 \_ cPhulkd - dbprocessor
root 56438 0.3 0.1 152200 10996 ? S 22:01 0:00 \_ cPhulkd - processor - http socket
root 2574 0.2 11.3 1767700 1156936 ? Ssl Sep04 100:38 /usr/local/cpanel/3rdparty/bin/clamd
root 2597 0.0 0.0 45980 5800 ? S Sep04 2:02 queueprocd - waiting up to 60s to process a task
named 8303 0.0 0.3 688152 36084 ? Ssl Sep04 25:57 /usr/sbin/named -u named -c /etc/named.conf
nobody 8570 0.0 0.0 65792 4292 ? SLs Sep04 1:42 proftpd: (accepting connections)
mysql 127998 7.2 26.3 8230512 2697084 ? Ssl Sep07 2950:40 /usr/sbin/mysqld --basedir=/usr
mailnull 103686 0.0 0.0 80596 3456 ? Ss Sep17 2:06 /usr/sbin/exim -ps -bd -q1h -oP /var/spool/exim/exim-daemon.pid
root 31932 0.0 0.0 108296 332 tty1 Ss+ Oct01 0:00 /sbin/agetty --noclear tty1 linux
root 97502 0.0 0.0 225676 5600 ? Ss Oct01 1:39 /usr/sbin/httpd -k start
root 15919 0.0 0.0 12940 572 ? S Oct04 0:18 \_ /usr/local/cpanel/bin/splitlogs --dir=/etc/apache2/logs/domlogs --main=webhost.xpatit.com --suffix=-bytes_log
root 15920 0.0 0.0 13136 876 ? S Oct04 0:20 \_ /usr/local/cpanel/bin/splitlogs --dir=/etc/apache2/logs/domlogs --main=webhost.xpatit.com --mainout=/etc/apache2/logs/access_log
root 15925 0.0 0.0 53540 2996 ? S Oct04 0:00 \_ /usr/local/cpanel/3rdparty/bin/perl /usr/local/cpanel/bin/leechprotect
nobody 15927 0.0 0.0 225676 3116 ? S Oct04 0:02 \_ /usr/sbin/httpd -k start
nobody 50811 0.0 0.1 235148 13380 ? S 21:28 0:00 \_ /usr/sbin/httpd -k start
nobody 51009 0.0 0.1 235124 13184 ? S 21:29 0:00 \_ /usr/sbin/httpd -k start
nobody 51270 0.0 0.1 235148 12892 ? S 21:31 0:00 \_ /usr/sbin/httpd -k start
nobody 51321 0.0 0.1 235044 12680 ? S 21:32 0:00 \_ /usr/sbin/httpd -k start
nobody 51576 0.0 0.1 235248 13272 ? S 21:33 0:00 \_ /usr/sbin/httpd -k start
nobody 51583 0.0 0.1 235152 13228 ? S 21:33 0:00 \_ /usr/sbin/httpd -k start
nobody 51708 0.0 0.1 235248 13164 ? S 21:34 0:00 \_ /usr/sbin/httpd -k start
nobody 51710 0.0 0.1 235172 13052 ? S 21:34 0:00 \_ /usr/sbin/httpd -k start
nobody 51711 0.0 0.1 235124 13488 ? S 21:34 0:00 \_ /usr/sbin/httpd -k start
nobody 51768 0.0 0.1 235144 13084 ? S 21:34 0:00 \_ /usr/sbin/httpd -k start
nobody 51896 0.0 0.1 235144 12984 ? S 21:35 0:00 \_ /usr/sbin/httpd -k start
nobody 52020 0.0 0.1 235252 13176 ? S 21:36 0:00 \_ /usr/sbin/httpd -k start
nobody 52377 0.0 0.1 235036 12628 ? S 21:38 0:00 \_ /usr/sbin/httpd -k start
nobody 52385 0.0 0.1 235120 13300 ? S 21:38 0:00 \_ /usr/sbin/httpd -k start
nobody 52391 0.0 0.1 235132 13348 ? S 21:38 0:00 \_ /usr/sbin/httpd -k start
nobody 52596 0.0 0.1 235320 13852 ? S 21:39 0:00 \_ /usr/sbin/httpd -k start
nobody 52617 0.0 0.1 235132 12652 ? S 21:39 0:00 \_ /usr/sbin/httpd -k start
nobody 52923 0.0 0.1 235116 13244 ? S 21:41 0:00 \_ /usr/sbin/httpd -k start
nobody 53735 0.0 0.1 235120 13440 ? S 21:46 0:00 \_ /usr/sbin/httpd -k start
nobody 53822 0.0 0.1 235116 12720 ? S 21:47 0:00 \_ /usr/sbin/httpd -k start
nobody 53937 0.0 0.1 234980 12368 ? S 21:47 0:00 \_ /usr/sbin/httpd -k start
nobody 53988 0.0 0.1 235168 13016 ? S 21:48 0:00 \_ /usr/sbin/httpd -k start
nobody 54148 0.0 0.1 235312 12780 ? S 21:48 0:00 \_ /usr/sbin/httpd -k start
nobody 54418 0.0 0.1 235116 12964 ? S 21:49 0:00 \_ /usr/sbin/httpd -k start
nobody 54577 0.0 0.1 235116 13136 ? S 21:50 0:00 \_ /usr/sbin/httpd -k start
nobody 54581 0.0 0.1 235040 11104 ? S 21:50 0:00 \_ /usr/sbin/httpd -k start
nobody 54585 0.0 0.1 235036 12404 ? S 21:50 0:00 \_ /usr/sbin/httpd -k start
nobody 54623 0.0 0.1 235040 12824 ? S 21:50 0:00 \_ /usr/sbin/httpd -k start
nobody 54686 0.0 0.1 235032 12956 ? S 21:50 0:00 \_ /usr/sbin/httpd -k start
nobody 54717 0.0 0.1 235168 13144 ? S 21:51 0:00 \_ /usr/sbin/httpd -k start
nobody 54719 0.0 0.1 235032 12596 ? S 21:51 0:00 \_ /usr/sbin/httpd -k start
nobody 54843 0.0 0.1 235032 11108 ? S 21:51 0:00 \_ /usr/sbin/httpd -k start
nobody 54851 0.0 0.1 235028 12496 ? S 21:51 0:00 \_ /usr/sbin/httpd -k start
nobody 55084 0.0 0.1 235036 12124 ? S 21:53 0:00 \_ /usr/sbin/httpd -k start
nobody 55098 0.0 0.1 235036 12124 ? S 21:53 0:00 \_ /usr/sbin/httpd -k start
nobody 55165 0.0 0.1 235028 12664 ? S 21:53 0:00 \_ /usr/sbin/httpd -k start
nobody 55413 0.0 0.1 235036 12128 ? S 21:54 0:00 \_ /usr/sbin/httpd -k start
nobody 55416 0.0 0.1 235036 12792 ? S 21:54 0:00 \_ /usr/sbin/httpd -k start
nobody 55417 0.0 0.1 235024 12564 ? S 21:54 0:00 \_ /usr/sbin/httpd -k start
nobody 55421 0.0 0.1 234904 10852 ? S 21:54 0:00 \_ /usr/sbin/httpd -k start
nobody 55422 0.0 0.1 235036 12636 ? S 21:54 0:00 \_ /usr/sbin/httpd -k start
nobody 55423 0.0 0.1 235036 12568 ? S 21:54 0:00 \_ /usr/sbin/httpd -k start
nobody 55456 0.0 0.1 235296 13844 ? S 21:55 0:00 \_ /usr/sbin/httpd -k start
nobody 55526 0.0 0.1 235032 12396 ? S 21:55 0:00 \_ /usr/sbin/httpd -k start
nobody 55528 0.0 0.1 234900 12136 ? S 21:55 0:00 \_ /usr/sbin/httpd -k start
nobody 55536 0.0 0.1 235036 11868 ? S 21:55 0:00 \_ /usr/sbin/httpd -k start
nobody 55613 0.0 0.1 234904 10852 ? S 21:56 0:00 \_ /usr/sbin/httpd -k start
nobody 55616 0.0 0.1 235036 12124 ? S 21:56 0:00 \_ /usr/sbin/httpd -k start
nobody 55660 0.0 0.1 235004 12476 ? S 21:56 0:00 \_ /usr/sbin/httpd -k start
nobody 55688 0.0 0.1 235036 12584 ? S 21:57 0:00 \_ /usr/sbin/httpd -k start
nobody 55691 0.0 0.1 235004 12568 ? S 21:57 0:00 \_ /usr/sbin/httpd -k start
nobody 55693 0.0 0.1 234980 12320 ? S 21:57 0:00 \_ /usr/sbin/httpd -k start
nobody 55694 0.0 0.1 234900 12232 ? S 21:57 0:00 \_ /usr/sbin/httpd -k start
nobody 55763 0.0 0.1 235292 13408 ? S 21:57 0:00 \_ /usr/sbin/httpd -k start
nobody 55771 0.0 0.1 235164 13096 ? S 21:57 0:00 \_ /usr/sbin/httpd -k start
nobody 55777 0.0 0.1 235040 12660 ? S 21:57 0:00 \_ /usr/sbin/httpd -k start
nobody 55784 0.0 0.1 235036 11868 ? S 21:57 0:00 \_ /usr/sbin/httpd -k start
nobody 55785 0.0 0.1 235036 12128 ? S 21:57 0:00 \_ /usr/sbin/httpd -k start
nobody 55817 0.0 0.1 235116 12840 ? S 21:58 0:00 \_ /usr/sbin/httpd -k start
nobody 55825 0.0 0.1 235032 12844 ? S 21:58 0:00 \_ /usr/sbin/httpd -k start
nobody 55845 0.0 0.1 235036 12696 ? S 21:58 0:00 \_ /usr/sbin/httpd -k start
nobody 55896 0.0 0.1 235036 12088 ? S 21:58 0:00 \_ /usr/sbin/httpd -k start
nobody 55918 0.0 0.1 235200 12888 ? S 21:58 0:00 \_ /usr/sbin/httpd -k start
nobody 56056 0.0 0.1 235028 12512 ? S 21:59 0:00 \_ /usr/sbin/httpd -k start
nobody 56060 0.0 0.1 235036 11872 ? S 21:59 0:00 \_ /usr/sbin/httpd -k start
nobody 56062 0.0 0.1 235036 12520 ? S 21:59 0:00 \_ /usr/sbin/httpd -k start
nobody 56063 0.0 0.1 235036 12784 ? S 21:59 0:00 \_ /usr/sbin/httpd -k start
nobody 56118 0.0 0.1 235036 12144 ? S 21:59 0:00 \_ /usr/sbin/httpd -k start
nobody 56179 0.0 0.1 235140 13180 ? S 22:00 0:00 \_ /usr/sbin/httpd -k start
nobody 56191 0.0 0.1 235184 13044 ? S 22:00 0:00 \_ /usr/sbin/httpd -k start
nobody 56267 0.0 0.1 235032 12888 ? S 22:00 0:00 \_ /usr/sbin/httpd -k start
nobody 56269 0.0 0.1 235032 12696 ? S 22:00 0:00 \_ /usr/sbin/httpd -k start
nobody 56270 0.0 0.1 235112 12520 ? S 22:00 0:00 \_ /usr/sbin/httpd -k start
nobody 56275 0.0 0.1 235028 12468 ? S 22:00 0:00 \_ /usr/sbin/httpd -k start
nobody 56334 0.0 0.1 235032 12216 ? S 22:01 0:00 \_ /usr/sbin/httpd -k start
nobody 56380 0.0 0.1 235040 12808 ? S 22:01 0:00 \_ /usr/sbin/httpd -k start
nobody 56398 0.0 0.1 234900 11972 ? S 22:01 0:00 \_ /usr/sbin/httpd -k start
nobody 56399 0.0 0.1 234904 10844 ? S 22:01 0:00 \_ /usr/sbin/httpd -k start
nobody 56427 0.0 0.1 235032 12400 ? S 22:01 0:00 \_ /usr/sbin/httpd -k start
nobody 56442 0.0 0.1 234900 12088 ? S 22:01 0:00 \_ /usr/sbin/httpd -k start
pavlousa 56472 10.5 0.3 246728 31004 ? R 22:02 0:00 \_ /opt/cpanel/ea-php56/root/usr/bin/php-cgi /home/pavlousa/public_html/feeds/index.php
root 97535 0.0 0.1 458336 11488 ? Ss Oct01 0:38 php-fpm: master process (/opt/cpanel/ea-php72/root/etc/php-fpm.conf)
xpatitg 56250 2.7 0.4 477672 43560 ? S 22:00 0:02 \_ php-fpm: pool xpatit_gr
xpatitg 56441 1.0 0.2 461252 20864 ? S 22:01 0:00 \_ php-fpm: pool xpatit_gr
root 97541 0.0 0.0 340832 10124 ? Ss Oct01 0:30 php-fpm: master process (/opt/cpanel/ea-php56/root/etc/php-fpm.conf)
wncc0m 56373 8.5 0.5 382100 53592 ? S 22:01 0:03 \_ php-fpm: pool wnc_com_cy
wncc0m 56400 4.1 0.5 382620 53756 ? S 22:01 0:01 \_ php-fpm: pool wnc_com_cy
root 97546 0.0 0.1 538208 13872 ? Ss Oct01 1:10 php-fpm: master process (/opt/cpanel/ea-php74/root/etc/php-fpm.conf)
sfragi5 45460 38.8 2.6 1171204 270256 ? S 20:59 24:13 \_ php-fpm: pool sfragidadiko_gr
sfragi5 47299 34.3 2.8 1196284 294912 ? R 21:09 18:02 \_ php-fpm: pool sfragidadiko_gr
sfragi5 47305 33.3 2.4 1085912 254332 ? S 21:09 17:33 \_ php-fpm: pool sfragidadiko_gr
sfragi5 48028 27.6 2.3 1147960 244488 ? R 21:13 13:21 \_ php-fpm: pool sfragidadiko_gr
sfragi5 48162 34.4 2.9 1205580 300580 ? S 21:14 16:22 \_ php-fpm: pool sfragidadiko_gr
sfragi5 48551 30.7 2.4 1154032 250464 ? R 21:17 13:52 \_ php-fpm: pool sfragidadiko_gr
sfragi5 49072 33.1 2.3 1067204 238320 ? S 21:19 14:10 \_ php-fpm: pool sfragidadiko_gr
sfragi5 50251 37.3 2.6 1172980 272872 ? R 21:25 13:36 \_ php-fpm: pool sfragidadiko_gr
sfragi5 50938 31.8 3.6 1273292 372660 ? R 21:29 10:30 \_ php-fpm: pool sfragidadiko_gr
sfragi5 50941 29.4 2.6 1167088 268112 ? S 21:29 9:43 \_ php-fpm: pool sfragidadiko_gr
root 97553 0.0 0.1 466032 12728 ? Ss Oct01 0:23 php-fpm: master process (/opt/cpanel/ea-php73/root/etc/php-fpm.conf)
root 93863 0.0 0.0 15476 968 ? Ss Oct02 0:32 /usr/sbin/dovecot -F -c /etc/dovecot/dovecot.conf
dovecot 93871 0.0 0.0 10172 612 ? S Oct02 0:12 \_ dovecot/anvil
dovenull 15940 0.0 0.0 51448 5848 ? S Oct04 1:25 \_ dovecot/pop3-login
dovenull 15941 0.0 0.0 49812 5024 ? S Oct04 0:03 \_ dovecot/imap-login
root 15942 0.0 0.0 10304 584 ? S Oct04 0:14 \_ dovecot/log
dovenull 15943 0.0 0.0 51588 5660 ? S Oct04 1:34 \_ dovecot/pop3-login
dovenull 15944 0.0 0.0 49960 5012 ? S Oct04 0:04 \_ dovecot/imap-login
root 15945 0.0 0.0 18768 2236 ? S Oct04 0:25 \_ dovecot/config
dovecot 15946 0.0 0.0 44604 1888 ? S Oct04 0:14 \_ dovecot/stats
dovecot 16151 0.0 0.0 10180 704 ? S Oct04 0:00 \_ dovecot/imap-hibernate
dovecot 129145 0.2 0.0 71532 4520 ? S 06:38 2:35 \_ dovecot/auth
tlisis 55534 0.0 0.0 28924 2496 ? S 21:55 0:00 \_ dovecot/quota-status -p postfix
homeaid 55875 0.0 0.0 31360 3228 ? S 21:58 0:00 \_ dovecot/pop3
root 56245 0.0 0.0 70488 4096 ? S 22:00 0:00 \_ dovecot/auth -w
xpatitg 56406 0.1 0.0 38104 3856 ? S 22:01 0:00 \_ dovecot/imap
homeaid 56450 0.0 0.0 31360 3224 ? S 22:01 0:00 \_ dovecot/pop3
nscd 94243 0.0 0.0 1467644 2464 ? Ssl Oct02 1:33 /usr/sbin/nscd
root 94460 0.0 0.0 26296 1596 ? SN Oct02 0:01 cpanellogd - sleeping for logs
root 72201 0.0 0.1 117016 10308 ? Ssl Oct03 0:16 /usr/local/cpanel/base/frontend/paper_lantern/letsencrypt/letsencrypt.live.cgi -mode daemon
root 71187 0.0 0.2 176700 28704 ? Ss 00:00 0:48 lfd - sleeping
root 56341 0.0 0.2 176832 28060 ? S 22:01 0:00 \_ lfd - checking system integrity
root 56343 1.8 0.0 108080 772 ? D 22:01 0:01 | \_ /usr/bin/md5sum --check /var/lib/csf/csf.tempint
root 56476 0.0 0.2 176700 28204 ? S 22:02 0:00 \_ lfd - (child) checking load...
root 56477 0.0 0.0 153944 2148 ? R 22:02 0:00 \_ /bin/ps axuf
root 50476 0.2 1.1 242256 118512 ? Ss 21:26 0:06 /usr/local/cpanel/3rdparty/perl/530/bin/perl -T -w /usr/local/cpanel/3rdparty/bin/spamd --allowed-ips=127.0.0.1,::1 --max-children=5 --pidfile=/var/run/spamd.pid --listen=5 --listen=6
root 51275 0.1 1.2 260120 129948 ? S 21:31 0:02 \_ spamd child
root 51276 0.0 1.2 258092 127900 ? S 21:31 0:00 \_ spamd child
vmstat 输出：
Output from vmstat:
procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
11 3 3146980 346748 425428 1995264 1 1 278 578 3 1 13 3 78 5 0
iostat 输出：
Linux 3.10.0-1127.19.1.el7.x86_64 (webhost.xpatit.com) 10/06/2020 _x86_64_ (4 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
14.01 0.55 3.11 5.39 0.00 76.94
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
sda 29.68 546.33 161.43 1496391757 442151272
sdb 4.41 226.98 283.95 621684425 777738548
sdc 199.94 333.97 1982.06 914743917 5428838668
sdd 1.10 4.59 5.70 12563012 15602768
dm-0 362.13 333.97 1982.06 914743409 5428838668
dm-1 4.50 226.98 283.95 621683917 777738548
在这个特殊情况下，平均负载约为 12（即使持续 15 分钟）