Hi again,
I got an old Ubuntu server 16.04 with apache 2.4.18 serving 140 different
domains.
The server has 8 vCPUs and 16GB of memory. It's a virtual server hosted in
Digital Ocean.
As you can see above, the average memory use per apache process is 93MB.
It's possible to improve that? If not, why is so much memory used? In other
servers with similar configurations but with fewer hosted domains and low
resources (see at the bottom of this email), the memory usage is much
lower. Is it due precisely to the number of domains hosted? If not, what?
Sorry to insist on the memory used by each apache process, but I need to
improve it (if it's possible).
# ls /etc/apache2/sites-enabled/|grep -v ssl |wc
140
# cat /etc/issue
Ubuntu 16.04.6 LTS
# apache2 -V
Server version: Apache/2.4.18 (Ubuntu)
Server built: 2019-10-08T13:31:25
Server's Module Magic Number: 20120211:52
Server loaded: APR 1.5.2, APR-UTIL 1.5.4
Compiled using: APR 1.5.2, APR-UTIL 1.5.4
Architecture: 64-bit
Server MPM: prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=256
-D HTTPD_ROOT="/etc/apache2"
-D SUEXEC_BIN="/usr/lib/apache2/suexec"
-D DEFAULT_PIDLOG="/var/run/apache2.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="mime.types"
-D SERVER_CONFIG_FILE="apache2.conf"
# apache2 -M
Loaded Modules:
core_module (static)
so_module (static)
watchdog_module (static)
http_module (static)
log_config_module (static)
logio_module (static)
version_module (static)
unixd_module (static)
access_compat_module (shared)
alias_module (shared)
auth_basic_module (shared)
authn_core_module (shared)
authn_file_module (shared)
authz_core_module (shared)
authz_host_module (shared)
authz_user_module (shared)
autoindex_module (shared)
deflate_module (shared)
dir_module (shared)
env_module (shared)
expires_module (shared)
filter_module (shared)
headers_module (shared)
mime_module (shared)
mpm_prefork_module (shared)
negotiation_module (shared)
php7_module (shared)
rewrite_module (shared)
setenvif_module (shared)
socache_shmcb_module (shared)
ssl_module (shared)
status_module (shared)
Relevant part of /etc/apache2/apache2.conf ...
<IfModule mpm_prefork_module>
ServerLimit 800
StartServers 10
MinSpareServers 200
MaxSpareServers 400
MaxRequestWorkers 800
MaxConnectionsPerChild 10000
</IfModule>
# free -m
total used free shared buff/cache
available
Mem: 16046 7198 496 232 8351
8187
Swap: 4095 243 3852
# ps aux | grep apache
root 1204 0.0 0.2 431016 47312 ? Ss May04 7:43
/usr/sbin/apache2 -k start
www-data 4778 0.0 0.4 531744 77132 ? S 09:00 0:03
/usr/sbin/apache2 -k start
www-data 11661 0.1 0.3 518652 57868 ? S 10:00 0:03
/usr/sbin/apache2 -k start
www-data 13839 0.0 0.2 443036 45928 ? S 10:12 0:01
/usr/sbin/apache2 -k start
www-data 14763 0.1 0.2 443004 40676 ? S 10:18 0:02
/usr/sbin/apache2 -k start
www-data 26848 0.0 0.4 533496 81960 ? S 06:35 0:11
/usr/sbin/apache2 -k start
www-data 26849 0.0 0.5 537956 96632 ? S 06:35 0:14
/usr/sbin/apache2 -k start
www-data 26850 0.0 0.5 528608 87912 ? S 06:35 0:09
/usr/sbin/apache2 -k start
www-data 26851 0.0 0.4 519652 79560 ? S 06:35 0:10
/usr/sbin/apache2 -k start
www-data 26852 0.1 0.6 545400 103880 ? S 06:35 0:19
/usr/sbin/apache2 -k start
www-data 26853 0.0 0.5 541456 97776 ? S 06:35 0:09
/usr/sbin/apache2 -k start
www-data 26854 0.0 0.8 578080 132944 ? S 06:35 0:10
/usr/sbin/apache2 -k start
www-data 26855 0.0 0.5 535320 94640 ? S 06:35 0:11
/usr/sbin/apache2 -k start
www-data 26856 0.0 0.4 528912 73644 ? S 06:35 0:05
/usr/sbin/apache2 -k start
www-data 26857 0.0 0.5 528156 86332 ? S 06:35 0:08
/usr/sbin/apache2 -k start
www-data 26872 0.0 0.4 522028 69292 ? S 06:35 0:07
/usr/sbin/apache2 -k start
www-data 26873 0.0 0.5 530952 86820 ? S 06:35 0:11
/usr/sbin/apache2 -k start
www-data 26874 0.0 0.4 524660 77884 ? S 06:35 0:07
/usr/sbin/apache2 -k start
www-data 26875 0.0 0.4 522320 77392 ? S 06:35 0:11
/usr/sbin/apache2 -k start
www-data 26876 0.0 0.4 529936 80368 ? S 06:35 0:13
/usr/sbin/apache2 -k start
www-data 26877 0.0 0.6 553920 109604 ? S 06:35 0:10
/usr/sbin/apache2 -k start
www-data 26887 0.0 0.5 534996 87504 ? S 06:35 0:06
/usr/sbin/apache2 -k start
www-data 26888 0.1 0.5 524512 86896 ? S 06:35 0:14
/usr/sbin/apache2 -k start
www-data 26889 0.0 0.4 519904 80188 ? S 06:35 0:12
/usr/sbin/apache2 -k start
www-data 26890 0.0 0.4 523004 77304 ? S 06:35 0:07
/usr/sbin/apache2 -k start
www-data 26891 0.0 0.5 536500 95164 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26892 0.0 0.5 543876 91908 ? S 06:36 0:05
/usr/sbin/apache2 -k start
www-data 26893 0.0 0.4 521592 71296 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26894 0.0 0.6 546540 106028 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 26895 0.0 0.6 547308 107360 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26896 0.0 0.4 520464 79968 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26897 0.0 0.6 548696 105372 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26898 0.0 0.4 519640 77728 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26899 0.1 0.5 534680 95384 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26900 0.0 0.4 522144 81592 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26901 0.0 0.5 525848 90668 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26902 0.0 0.5 537980 95880 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26903 0.0 0.8 577704 136672 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26904 0.0 0.5 531536 88820 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26905 0.1 0.8 571304 138996 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 26906 0.0 0.7 557736 116024 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26907 0.1 0.7 551868 117784 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 26908 0.0 0.6 540604 103584 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 26909 0.0 0.5 521668 87288 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26910 0.0 0.5 524268 84732 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26911 0.1 0.5 533072 93176 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26912 0.0 0.4 520120 82120 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26913 0.0 0.6 541632 108492 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26914 0.0 0.4 525260 75120 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 26915 0.0 0.7 560688 121476 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26916 0.0 0.5 536120 94080 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26917 0.0 0.6 538184 100656 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26918 0.0 0.5 527952 84436 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26919 0.0 0.5 532980 92624 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26920 0.1 0.5 531448 96240 ? S 06:36 0:21
/usr/sbin/apache2 -k start
www-data 26921 0.1 0.6 542152 105976 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26922 0.0 0.5 526024 82464 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26923 0.0 0.5 524584 90632 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26924 0.0 0.6 540708 99428 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26925 0.1 0.5 536780 95872 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26926 0.0 0.4 524756 77776 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26927 0.0 0.4 520352 80060 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26928 0.0 0.5 531528 97112 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26929 0.0 0.5 532668 91860 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26930 0.0 0.7 556160 116284 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26931 0.1 0.4 522208 77116 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26932 0.1 0.6 536508 101740 ? S 06:36 0:25
/usr/sbin/apache2 -k start
www-data 26933 0.0 0.5 527408 84192 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26934 0.0 0.5 536420 93424 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26935 0.0 0.6 538876 100112 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26936 0.0 0.4 525952 81880 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26937 0.0 0.4 522420 76936 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26938 0.0 0.4 520092 71724 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26939 0.1 0.7 555572 121268 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 26940 0.1 0.7 568736 123464 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26941 0.0 0.7 558060 116840 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26942 0.0 0.5 528900 94064 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26943 0.0 0.4 522884 80040 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26944 0.0 0.5 535836 93336 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26945 0.1 0.4 526944 80564 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 26946 0.1 0.5 536728 97784 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 26947 0.1 0.5 538744 97380 ? S 06:36 0:19
/usr/sbin/apache2 -k start
www-data 26948 0.0 0.4 526324 77244 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26949 0.0 0.6 542460 106052 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26950 0.0 0.4 522028 78136 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26951 0.0 0.5 536500 92496 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26952 0.1 0.4 531572 81156 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26953 0.0 0.8 577768 134572 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26954 0.0 0.4 519476 65864 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 26955 0.0 0.4 521836 69876 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 26956 0.1 0.4 521500 80656 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26957 0.1 0.6 545200 106808 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 26958 0.0 0.5 524352 83780 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26959 0.0 0.5 523468 88020 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26960 0.0 0.5 534268 88396 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26961 0.0 0.7 574580 130332 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26962 0.0 0.5 530728 86572 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 26963 0.0 0.5 530908 95472 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26964 0.1 0.6 549456 107764 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 26965 0.1 0.6 536936 100896 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 26966 0.0 0.5 524540 86120 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26967 0.0 0.4 523868 77980 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26968 0.0 0.6 547208 108608 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26969 0.1 0.4 520424 81960 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26970 0.0 0.4 524584 78812 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26971 0.0 0.5 522984 86940 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26972 0.0 0.8 581384 132668 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26973 0.0 0.6 543788 111104 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26974 0.0 0.5 525672 84156 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26975 0.0 0.4 525020 79384 ? S 06:36 0:06
/usr/sbin/apache2 -k start
www-data 26976 0.1 0.5 533224 97164 ? S 06:36 0:19
/usr/sbin/apache2 -k start
www-data 26977 0.0 0.5 531060 93784 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26978 0.0 0.7 567952 123064 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 26979 0.0 0.5 528988 86380 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26980 0.1 0.5 535572 94256 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 26981 0.1 0.4 522572 77576 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26982 0.1 0.4 529240 81412 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26983 0.0 0.4 520052 73052 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26984 0.1 0.5 527876 87960 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26985 0.0 0.5 519816 83936 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26986 0.1 0.5 528092 90224 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 26987 0.1 0.5 531620 98228 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26988 0.0 0.5 525164 84000 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26989 0.1 0.6 532952 100068 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26990 0.1 0.5 527420 83456 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26991 0.0 0.5 539336 97424 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26992 0.0 0.4 533300 80832 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26993 0.0 0.4 523308 81388 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26994 0.0 0.5 531616 95952 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26995 0.1 0.5 523200 87804 ? S 06:36 0:25
/usr/sbin/apache2 -k start
www-data 26996 0.1 0.6 538852 104932 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26997 0.1 0.5 522432 84204 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26998 0.1 0.7 557036 121100 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26999 0.0 0.4 519648 69948 ? S 06:36 0:04
/usr/sbin/apache2 -k start
www-data 27000 0.1 0.5 542584 94104 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27001 0.1 0.5 530568 93648 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27002 0.1 0.6 556860 107728 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27003 0.0 0.5 538228 94536 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27004 0.1 0.8 581208 137540 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27005 0.0 0.5 530140 84508 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27006 0.0 0.8 586136 145720 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27007 0.1 0.7 575788 131104 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27008 0.1 0.5 533184 87128 ? S 06:36 0:19
/usr/sbin/apache2 -k start
www-data 27009 0.0 0.6 551928 110940 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 27010 0.0 0.4 522324 77844 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27011 0.0 0.7 568524 127628 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27012 0.0 0.6 535848 100020 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27013 0.1 0.7 560752 121832 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 27014 0.0 0.6 547328 103744 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27015 0.0 0.5 532328 83036 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27016 0.0 0.5 535192 91012 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 27017 0.0 0.4 522176 77164 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27018 0.1 0.6 551396 112044 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 27019 0.1 0.7 559700 119996 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27020 0.0 0.4 524804 80604 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 27021 0.0 0.6 539416 101992 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27022 0.0 0.4 525112 76924 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27023 0.0 0.4 524548 76976 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27024 0.0 0.4 528604 80356 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27025 0.0 0.4 520224 80616 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27026 0.1 0.5 532060 92060 ? S 06:36 0:21
/usr/sbin/apache2 -k start
www-data 27027 0.1 0.6 545352 109016 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27028 0.1 0.5 538984 97816 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27029 0.1 0.5 529892 86188 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27030 0.1 0.6 540104 102212 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27031 0.1 0.8 575016 137560 ? S 06:36 0:19
/usr/sbin/apache2 -k start
www-data 27032 0.0 0.4 520308 81420 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27033 0.1 0.5 537936 92944 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27034 0.1 0.5 522704 89108 ? S 06:36 0:22
/usr/sbin/apache2 -k start
www-data 27035 0.0 0.6 556492 111672 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27036 0.1 0.5 520440 86884 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27037 0.0 0.4 520624 72276 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 27038 0.1 0.5 530124 91796 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27039 0.1 0.5 520332 89796 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27040 0.1 0.5 528156 95112 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27041 0.0 0.5 533976 93888 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27042 0.1 0.6 537948 102620 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 27043 0.0 0.4 522048 81096 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 27044 0.1 0.5 530396 93288 ? S 06:36 0:19
/usr/sbin/apache2 -k start
www-data 27045 0.0 0.5 531388 88804 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 27046 0.0 0.4 521360 70844 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27047 0.0 0.5 535216 91672 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27048 0.0 0.5 528040 88680 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27049 0.0 0.5 538836 97572 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27050 0.0 0.5 522132 84728 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 27051 0.0 0.4 525956 76956 ? S 06:36 0:05
/usr/sbin/apache2 -k start
www-data 27052 0.1 0.5 530108 87724 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27053 0.1 0.5 538632 95240 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 27054 0.0 0.4 521788 79312 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27055 0.0 0.5 536316 82960 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 27056 0.0 0.7 556240 124972 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27057 0.1 0.6 550912 110344 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27058 0.0 0.7 559472 115888 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27059 0.0 0.5 534732 93712 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27060 0.1 0.5 528764 84880 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27061 0.1 0.6 537024 102628 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27062 0.0 0.4 524216 81064 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27063 0.0 0.5 531488 88208 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 27064 0.0 0.7 565756 122960 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27065 0.1 0.4 523656 81400 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27066 0.1 0.5 538944 97656 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27067 0.1 0.5 536044 97820 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27068 0.1 0.6 544248 100456 ? S 06:36 0:20
/usr/sbin/apache2 -k start
www-data 27069 0.0 0.5 523808 87216 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 27070 0.1 0.5 536608 96324 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27071 0.0 0.5 528188 89908 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27072 0.0 0.5 529380 85000 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27073 0.0 0.5 537376 88504 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27074 0.0 0.4 523140 79232 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27075 0.0 0.5 527100 88844 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 27076 0.1 0.5 525336 86228 ? S 06:36 0:21
/usr/sbin/apache2 -k start
www-data 27077 0.0 0.4 521832 78072 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27078 0.0 0.5 530812 86788 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27079 0.1 0.6 541220 103632 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 27080 0.1 0.8 585308 146236 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27081 0.0 0.5 523564 91084 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27089 0.1 0.5 534692 93812 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27092 0.1 0.8 585228 143020 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27093 0.1 0.5 536568 92112 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27096 0.0 0.4 521912 71456 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 27101 0.0 0.4 526092 78952 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 27102 0.0 0.5 528516 92736 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27111 0.0 0.4 523792 74276 ? S 06:36 0:04
/usr/sbin/apache2 -k start
www-data 27112 0.0 0.5 532540 94280 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27114 0.0 0.5 530608 91216 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27116 0.0 0.5 528664 87540 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 28428 0.1 0.6 552568 101516 ? S 07:08 0:13
/usr/sbin/apache2 -k start
www-data 28453 0.1 0.5 540024 96476 ? S 07:08 0:14
/usr/sbin/apache2 -k start
www-data 28454 0.1 0.5 531336 94940 ? S 07:08 0:15
/usr/sbin/apache2 -k start
www-data 28556 0.1 0.5 527256 87120 ? S 07:09 0:13
/usr/sbin/apache2 -k start
www-data 28557 0.0 0.6 538428 100244 ? S 07:09 0:12
/usr/sbin/apache2 -k start
www-data 28558 0.0 0.6 555736 110636 ? S 07:09 0:11
/usr/sbin/apache2 -k start
www-data 28559 0.1 0.6 540892 99320 ? S 07:09 0:17
/usr/sbin/apache2 -k start
www-data 28560 0.1 0.5 536812 98452 ? S 07:09 0:16
/usr/sbin/apache2 -k start
www-data 28561 0.1 0.4 523224 81780 ? S 07:09 0:21
/usr/sbin/apache2 -k start
www-data 28562 0.1 0.7 570844 127008 ? S 07:09 0:20
/usr/sbin/apache2 -k start
www-data 28563 0.1 0.5 539044 98296 ? S 07:09 0:14
/usr/sbin/apache2 -k start
www-data 28564 0.0 0.5 528376 85424 ? S 07:09 0:10
/usr/sbin/apache2 -k start
www-data 28565 0.1 0.7 570392 129428 ? S 07:09 0:21
/usr/sbin/apache2 -k start
www-data 28566 0.0 0.4 525804 80060 ? S 07:09 0:05
/usr/sbin/apache2 -k start
www-data 28567 0.1 0.5 522436 86684 ? S 07:09 0:17
/usr/sbin/apache2 -k start
www-data 28568 0.0 0.7 559216 116156 ? S 07:09 0:11
/usr/sbin/apache2 -k start
www-data 28569 0.1 0.5 531404 94140 ? S 07:09 0:14
/usr/sbin/apache2 -k start
www-data 28570 0.1 0.4 519344 74340 ? S 07:09 0:15
/usr/sbin/apache2 -k start
An example of a very similar server with very similar apache configuration
but with less domains (6). The average memory used are 27MB ...
# ls /etc/apache2/sites-enabled/|grep -v ssl |wc
6 6 148
# ps aux|grep apache
www-data 936 0.0 1.4 414692 14272 ? S 10:55 0:00
/usr/sbin/apache2 -k start
www-data 937 0.1 2.1 423736 21900 ? S 10:55 0:00
/usr/sbin/apache2 -k start
www-data 941 0.0 1.0 414328 10244 ? S 10:55 0:00
/usr/sbin/apache2 -k start
www-data 943 0.0 2.8 500268 29376 ? S 10:55 0:00
/usr/sbin/apache2 -k start
root 21633 0.0 3.1 414296 32304 ? Ss May04 1:46
/usr/sbin/apache2 -k start
www-data 28923 0.0 3.1 500432 31840 ? S 06:30 0:00
/usr/sbin/apache2 -k start
www-data 28924 0.0 3.1 500392 32264 ? S 06:30 0:00
/usr/sbin/apache2 -k start
www-data 28925 0.0 3.1 500412 31756 ? S 06:30 0:00
/usr/sbin/apache2 -k start
www-data 28926 0.0 3.2 500324 33124 ? S 06:30 0:00
/usr/sbin/apache2 -k start
www-data 29160 0.0 3.2 500456 33184 ? S 06:41 0:00
/usr/sbin/apache2 -k start
www-data 29612 0.0 3.5 504596 35632 ? S 06:47 0:00
/usr/sbin/apache2 -k start
# apache2 -M
Loaded Modules:
core_module (static)
so_module (static)
watchdog_module (static)
http_module (static)
log_config_module (static)
logio_module (static)
version_module (static)
unixd_module (static)
access_compat_module (shared)
alias_module (shared)
auth_basic_module (shared)
authn_core_module (shared)
authn_file_module (shared)
authz_core_module (shared)
authz_host_module (shared)
authz_user_module (shared)
autoindex_module (shared)
deflate_module (shared)
dir_module (shared)
env_module (shared)
expires_module (shared)
filter_module (shared)
headers_module (shared)
mime_module (shared)
mpm_prefork_module (shared)
negotiation_module (shared)
php7_module (shared)
rewrite_module (shared)
setenvif_module (shared)
socache_shmcb_module (shared)
ssl_module (shared)
status_module (shared)
# cat /etc/issue
Ubuntu 16.04.6 LTS
# apache2 -V
Server version: Apache/2.4.18 (Ubuntu)
Server built: 2019-10-08T13:31:25
Server's Module Magic Number: 20120211:52
Server loaded: APR 1.5.2, APR-UTIL 1.5.4
Compiled using: APR 1.5.2, APR-UTIL 1.5.4
Architecture: 64-bit
Server MPM: prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=256
-D HTTPD_ROOT="/etc/apache2"
-D SUEXEC_BIN="/usr/lib/apache2/suexec"
-D DEFAULT_PIDLOG="/var/run/apache2.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="mime.types"
-D SERVER_CONFIG_FILE="apache2.conf"
Thank's
--
Marc Serra
Organització i Sistemes
--
Manxa
1876, S.L. *
Ctra.
Les Tries, 85. 17800 Olot (Girona)**Tel. 972 27
45 30 Fax 972 27 45 32*
* Manxa Industrial | *Coneix
més aquí
<http://www.manxaindustrial.com>
* Manxa Ferros | *Coneix
més aquí
<http://www.manxaferros.com/>
* Manxa Ferreteria i Parament de la Llar |
*Coneix
més aquí <https://www.manxabricolatge.com>
**
--
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I got an old Ubuntu server 16.04 with apache 2.4.18 serving 140 different
domains.
The server has 8 vCPUs and 16GB of memory. It's a virtual server hosted in
Digital Ocean.
As you can see above, the average memory use per apache process is 93MB.
It's possible to improve that? If not, why is so much memory used? In other
servers with similar configurations but with fewer hosted domains and low
resources (see at the bottom of this email), the memory usage is much
lower. Is it due precisely to the number of domains hosted? If not, what?
Sorry to insist on the memory used by each apache process, but I need to
improve it (if it's possible).
# ls /etc/apache2/sites-enabled/|grep -v ssl |wc
140
# cat /etc/issue
Ubuntu 16.04.6 LTS
# apache2 -V
Server version: Apache/2.4.18 (Ubuntu)
Server built: 2019-10-08T13:31:25
Server's Module Magic Number: 20120211:52
Server loaded: APR 1.5.2, APR-UTIL 1.5.4
Compiled using: APR 1.5.2, APR-UTIL 1.5.4
Architecture: 64-bit
Server MPM: prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=256
-D HTTPD_ROOT="/etc/apache2"
-D SUEXEC_BIN="/usr/lib/apache2/suexec"
-D DEFAULT_PIDLOG="/var/run/apache2.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="mime.types"
-D SERVER_CONFIG_FILE="apache2.conf"
# apache2 -M
Loaded Modules:
core_module (static)
so_module (static)
watchdog_module (static)
http_module (static)
log_config_module (static)
logio_module (static)
version_module (static)
unixd_module (static)
access_compat_module (shared)
alias_module (shared)
auth_basic_module (shared)
authn_core_module (shared)
authn_file_module (shared)
authz_core_module (shared)
authz_host_module (shared)
authz_user_module (shared)
autoindex_module (shared)
deflate_module (shared)
dir_module (shared)
env_module (shared)
expires_module (shared)
filter_module (shared)
headers_module (shared)
mime_module (shared)
mpm_prefork_module (shared)
negotiation_module (shared)
php7_module (shared)
rewrite_module (shared)
setenvif_module (shared)
socache_shmcb_module (shared)
ssl_module (shared)
status_module (shared)
Relevant part of /etc/apache2/apache2.conf ...
<IfModule mpm_prefork_module>
ServerLimit 800
StartServers 10
MinSpareServers 200
MaxSpareServers 400
MaxRequestWorkers 800
MaxConnectionsPerChild 10000
</IfModule>
# free -m
total used free shared buff/cache
available
Mem: 16046 7198 496 232 8351
8187
Swap: 4095 243 3852
# ps aux | grep apache
root 1204 0.0 0.2 431016 47312 ? Ss May04 7:43
/usr/sbin/apache2 -k start
www-data 4778 0.0 0.4 531744 77132 ? S 09:00 0:03
/usr/sbin/apache2 -k start
www-data 11661 0.1 0.3 518652 57868 ? S 10:00 0:03
/usr/sbin/apache2 -k start
www-data 13839 0.0 0.2 443036 45928 ? S 10:12 0:01
/usr/sbin/apache2 -k start
www-data 14763 0.1 0.2 443004 40676 ? S 10:18 0:02
/usr/sbin/apache2 -k start
www-data 26848 0.0 0.4 533496 81960 ? S 06:35 0:11
/usr/sbin/apache2 -k start
www-data 26849 0.0 0.5 537956 96632 ? S 06:35 0:14
/usr/sbin/apache2 -k start
www-data 26850 0.0 0.5 528608 87912 ? S 06:35 0:09
/usr/sbin/apache2 -k start
www-data 26851 0.0 0.4 519652 79560 ? S 06:35 0:10
/usr/sbin/apache2 -k start
www-data 26852 0.1 0.6 545400 103880 ? S 06:35 0:19
/usr/sbin/apache2 -k start
www-data 26853 0.0 0.5 541456 97776 ? S 06:35 0:09
/usr/sbin/apache2 -k start
www-data 26854 0.0 0.8 578080 132944 ? S 06:35 0:10
/usr/sbin/apache2 -k start
www-data 26855 0.0 0.5 535320 94640 ? S 06:35 0:11
/usr/sbin/apache2 -k start
www-data 26856 0.0 0.4 528912 73644 ? S 06:35 0:05
/usr/sbin/apache2 -k start
www-data 26857 0.0 0.5 528156 86332 ? S 06:35 0:08
/usr/sbin/apache2 -k start
www-data 26872 0.0 0.4 522028 69292 ? S 06:35 0:07
/usr/sbin/apache2 -k start
www-data 26873 0.0 0.5 530952 86820 ? S 06:35 0:11
/usr/sbin/apache2 -k start
www-data 26874 0.0 0.4 524660 77884 ? S 06:35 0:07
/usr/sbin/apache2 -k start
www-data 26875 0.0 0.4 522320 77392 ? S 06:35 0:11
/usr/sbin/apache2 -k start
www-data 26876 0.0 0.4 529936 80368 ? S 06:35 0:13
/usr/sbin/apache2 -k start
www-data 26877 0.0 0.6 553920 109604 ? S 06:35 0:10
/usr/sbin/apache2 -k start
www-data 26887 0.0 0.5 534996 87504 ? S 06:35 0:06
/usr/sbin/apache2 -k start
www-data 26888 0.1 0.5 524512 86896 ? S 06:35 0:14
/usr/sbin/apache2 -k start
www-data 26889 0.0 0.4 519904 80188 ? S 06:35 0:12
/usr/sbin/apache2 -k start
www-data 26890 0.0 0.4 523004 77304 ? S 06:35 0:07
/usr/sbin/apache2 -k start
www-data 26891 0.0 0.5 536500 95164 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26892 0.0 0.5 543876 91908 ? S 06:36 0:05
/usr/sbin/apache2 -k start
www-data 26893 0.0 0.4 521592 71296 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26894 0.0 0.6 546540 106028 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 26895 0.0 0.6 547308 107360 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26896 0.0 0.4 520464 79968 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26897 0.0 0.6 548696 105372 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26898 0.0 0.4 519640 77728 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26899 0.1 0.5 534680 95384 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26900 0.0 0.4 522144 81592 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26901 0.0 0.5 525848 90668 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26902 0.0 0.5 537980 95880 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26903 0.0 0.8 577704 136672 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26904 0.0 0.5 531536 88820 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26905 0.1 0.8 571304 138996 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 26906 0.0 0.7 557736 116024 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26907 0.1 0.7 551868 117784 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 26908 0.0 0.6 540604 103584 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 26909 0.0 0.5 521668 87288 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26910 0.0 0.5 524268 84732 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26911 0.1 0.5 533072 93176 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26912 0.0 0.4 520120 82120 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26913 0.0 0.6 541632 108492 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26914 0.0 0.4 525260 75120 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 26915 0.0 0.7 560688 121476 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26916 0.0 0.5 536120 94080 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26917 0.0 0.6 538184 100656 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26918 0.0 0.5 527952 84436 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26919 0.0 0.5 532980 92624 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26920 0.1 0.5 531448 96240 ? S 06:36 0:21
/usr/sbin/apache2 -k start
www-data 26921 0.1 0.6 542152 105976 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26922 0.0 0.5 526024 82464 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26923 0.0 0.5 524584 90632 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26924 0.0 0.6 540708 99428 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26925 0.1 0.5 536780 95872 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26926 0.0 0.4 524756 77776 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26927 0.0 0.4 520352 80060 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26928 0.0 0.5 531528 97112 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26929 0.0 0.5 532668 91860 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26930 0.0 0.7 556160 116284 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26931 0.1 0.4 522208 77116 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26932 0.1 0.6 536508 101740 ? S 06:36 0:25
/usr/sbin/apache2 -k start
www-data 26933 0.0 0.5 527408 84192 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26934 0.0 0.5 536420 93424 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26935 0.0 0.6 538876 100112 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26936 0.0 0.4 525952 81880 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26937 0.0 0.4 522420 76936 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26938 0.0 0.4 520092 71724 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26939 0.1 0.7 555572 121268 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 26940 0.1 0.7 568736 123464 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26941 0.0 0.7 558060 116840 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26942 0.0 0.5 528900 94064 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26943 0.0 0.4 522884 80040 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26944 0.0 0.5 535836 93336 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26945 0.1 0.4 526944 80564 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 26946 0.1 0.5 536728 97784 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 26947 0.1 0.5 538744 97380 ? S 06:36 0:19
/usr/sbin/apache2 -k start
www-data 26948 0.0 0.4 526324 77244 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26949 0.0 0.6 542460 106052 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26950 0.0 0.4 522028 78136 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26951 0.0 0.5 536500 92496 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26952 0.1 0.4 531572 81156 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26953 0.0 0.8 577768 134572 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26954 0.0 0.4 519476 65864 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 26955 0.0 0.4 521836 69876 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 26956 0.1 0.4 521500 80656 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26957 0.1 0.6 545200 106808 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 26958 0.0 0.5 524352 83780 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26959 0.0 0.5 523468 88020 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26960 0.0 0.5 534268 88396 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26961 0.0 0.7 574580 130332 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26962 0.0 0.5 530728 86572 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 26963 0.0 0.5 530908 95472 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26964 0.1 0.6 549456 107764 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 26965 0.1 0.6 536936 100896 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 26966 0.0 0.5 524540 86120 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26967 0.0 0.4 523868 77980 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26968 0.0 0.6 547208 108608 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26969 0.1 0.4 520424 81960 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26970 0.0 0.4 524584 78812 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26971 0.0 0.5 522984 86940 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26972 0.0 0.8 581384 132668 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26973 0.0 0.6 543788 111104 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26974 0.0 0.5 525672 84156 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26975 0.0 0.4 525020 79384 ? S 06:36 0:06
/usr/sbin/apache2 -k start
www-data 26976 0.1 0.5 533224 97164 ? S 06:36 0:19
/usr/sbin/apache2 -k start
www-data 26977 0.0 0.5 531060 93784 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26978 0.0 0.7 567952 123064 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 26979 0.0 0.5 528988 86380 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26980 0.1 0.5 535572 94256 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 26981 0.1 0.4 522572 77576 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26982 0.1 0.4 529240 81412 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 26983 0.0 0.4 520052 73052 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 26984 0.1 0.5 527876 87960 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26985 0.0 0.5 519816 83936 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 26986 0.1 0.5 528092 90224 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 26987 0.1 0.5 531620 98228 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26988 0.0 0.5 525164 84000 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 26989 0.1 0.6 532952 100068 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26990 0.1 0.5 527420 83456 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26991 0.0 0.5 539336 97424 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 26992 0.0 0.4 533300 80832 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 26993 0.0 0.4 523308 81388 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26994 0.0 0.5 531616 95952 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 26995 0.1 0.5 523200 87804 ? S 06:36 0:25
/usr/sbin/apache2 -k start
www-data 26996 0.1 0.6 538852 104932 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26997 0.1 0.5 522432 84204 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26998 0.1 0.7 557036 121100 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 26999 0.0 0.4 519648 69948 ? S 06:36 0:04
/usr/sbin/apache2 -k start
www-data 27000 0.1 0.5 542584 94104 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27001 0.1 0.5 530568 93648 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27002 0.1 0.6 556860 107728 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27003 0.0 0.5 538228 94536 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27004 0.1 0.8 581208 137540 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27005 0.0 0.5 530140 84508 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27006 0.0 0.8 586136 145720 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27007 0.1 0.7 575788 131104 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27008 0.1 0.5 533184 87128 ? S 06:36 0:19
/usr/sbin/apache2 -k start
www-data 27009 0.0 0.6 551928 110940 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 27010 0.0 0.4 522324 77844 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27011 0.0 0.7 568524 127628 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27012 0.0 0.6 535848 100020 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27013 0.1 0.7 560752 121832 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 27014 0.0 0.6 547328 103744 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27015 0.0 0.5 532328 83036 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27016 0.0 0.5 535192 91012 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 27017 0.0 0.4 522176 77164 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27018 0.1 0.6 551396 112044 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 27019 0.1 0.7 559700 119996 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27020 0.0 0.4 524804 80604 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 27021 0.0 0.6 539416 101992 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27022 0.0 0.4 525112 76924 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27023 0.0 0.4 524548 76976 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27024 0.0 0.4 528604 80356 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27025 0.0 0.4 520224 80616 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27026 0.1 0.5 532060 92060 ? S 06:36 0:21
/usr/sbin/apache2 -k start
www-data 27027 0.1 0.6 545352 109016 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27028 0.1 0.5 538984 97816 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27029 0.1 0.5 529892 86188 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27030 0.1 0.6 540104 102212 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27031 0.1 0.8 575016 137560 ? S 06:36 0:19
/usr/sbin/apache2 -k start
www-data 27032 0.0 0.4 520308 81420 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27033 0.1 0.5 537936 92944 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27034 0.1 0.5 522704 89108 ? S 06:36 0:22
/usr/sbin/apache2 -k start
www-data 27035 0.0 0.6 556492 111672 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27036 0.1 0.5 520440 86884 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27037 0.0 0.4 520624 72276 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 27038 0.1 0.5 530124 91796 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27039 0.1 0.5 520332 89796 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27040 0.1 0.5 528156 95112 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27041 0.0 0.5 533976 93888 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27042 0.1 0.6 537948 102620 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 27043 0.0 0.4 522048 81096 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 27044 0.1 0.5 530396 93288 ? S 06:36 0:19
/usr/sbin/apache2 -k start
www-data 27045 0.0 0.5 531388 88804 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 27046 0.0 0.4 521360 70844 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27047 0.0 0.5 535216 91672 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27048 0.0 0.5 528040 88680 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27049 0.0 0.5 538836 97572 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27050 0.0 0.5 522132 84728 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 27051 0.0 0.4 525956 76956 ? S 06:36 0:05
/usr/sbin/apache2 -k start
www-data 27052 0.1 0.5 530108 87724 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27053 0.1 0.5 538632 95240 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 27054 0.0 0.4 521788 79312 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27055 0.0 0.5 536316 82960 ? S 06:36 0:07
/usr/sbin/apache2 -k start
www-data 27056 0.0 0.7 556240 124972 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27057 0.1 0.6 550912 110344 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27058 0.0 0.7 559472 115888 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27059 0.0 0.5 534732 93712 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27060 0.1 0.5 528764 84880 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27061 0.1 0.6 537024 102628 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27062 0.0 0.4 524216 81064 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27063 0.0 0.5 531488 88208 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 27064 0.0 0.7 565756 122960 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27065 0.1 0.4 523656 81400 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27066 0.1 0.5 538944 97656 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27067 0.1 0.5 536044 97820 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27068 0.1 0.6 544248 100456 ? S 06:36 0:20
/usr/sbin/apache2 -k start
www-data 27069 0.0 0.5 523808 87216 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 27070 0.1 0.5 536608 96324 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27071 0.0 0.5 528188 89908 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27072 0.0 0.5 529380 85000 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27073 0.0 0.5 537376 88504 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27074 0.0 0.4 523140 79232 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27075 0.0 0.5 527100 88844 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 27076 0.1 0.5 525336 86228 ? S 06:36 0:21
/usr/sbin/apache2 -k start
www-data 27077 0.0 0.4 521832 78072 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27078 0.0 0.5 530812 86788 ? S 06:36 0:13
/usr/sbin/apache2 -k start
www-data 27079 0.1 0.6 541220 103632 ? S 06:36 0:18
/usr/sbin/apache2 -k start
www-data 27080 0.1 0.8 585308 146236 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27081 0.0 0.5 523564 91084 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27089 0.1 0.5 534692 93812 ? S 06:36 0:15
/usr/sbin/apache2 -k start
www-data 27092 0.1 0.8 585228 143020 ? S 06:36 0:16
/usr/sbin/apache2 -k start
www-data 27093 0.1 0.5 536568 92112 ? S 06:36 0:17
/usr/sbin/apache2 -k start
www-data 27096 0.0 0.4 521912 71456 ? S 06:36 0:08
/usr/sbin/apache2 -k start
www-data 27101 0.0 0.4 526092 78952 ? S 06:36 0:11
/usr/sbin/apache2 -k start
www-data 27102 0.0 0.5 528516 92736 ? S 06:36 0:14
/usr/sbin/apache2 -k start
www-data 27111 0.0 0.4 523792 74276 ? S 06:36 0:04
/usr/sbin/apache2 -k start
www-data 27112 0.0 0.5 532540 94280 ? S 06:36 0:09
/usr/sbin/apache2 -k start
www-data 27114 0.0 0.5 530608 91216 ? S 06:36 0:12
/usr/sbin/apache2 -k start
www-data 27116 0.0 0.5 528664 87540 ? S 06:36 0:10
/usr/sbin/apache2 -k start
www-data 28428 0.1 0.6 552568 101516 ? S 07:08 0:13
/usr/sbin/apache2 -k start
www-data 28453 0.1 0.5 540024 96476 ? S 07:08 0:14
/usr/sbin/apache2 -k start
www-data 28454 0.1 0.5 531336 94940 ? S 07:08 0:15
/usr/sbin/apache2 -k start
www-data 28556 0.1 0.5 527256 87120 ? S 07:09 0:13
/usr/sbin/apache2 -k start
www-data 28557 0.0 0.6 538428 100244 ? S 07:09 0:12
/usr/sbin/apache2 -k start
www-data 28558 0.0 0.6 555736 110636 ? S 07:09 0:11
/usr/sbin/apache2 -k start
www-data 28559 0.1 0.6 540892 99320 ? S 07:09 0:17
/usr/sbin/apache2 -k start
www-data 28560 0.1 0.5 536812 98452 ? S 07:09 0:16
/usr/sbin/apache2 -k start
www-data 28561 0.1 0.4 523224 81780 ? S 07:09 0:21
/usr/sbin/apache2 -k start
www-data 28562 0.1 0.7 570844 127008 ? S 07:09 0:20
/usr/sbin/apache2 -k start
www-data 28563 0.1 0.5 539044 98296 ? S 07:09 0:14
/usr/sbin/apache2 -k start
www-data 28564 0.0 0.5 528376 85424 ? S 07:09 0:10
/usr/sbin/apache2 -k start
www-data 28565 0.1 0.7 570392 129428 ? S 07:09 0:21
/usr/sbin/apache2 -k start
www-data 28566 0.0 0.4 525804 80060 ? S 07:09 0:05
/usr/sbin/apache2 -k start
www-data 28567 0.1 0.5 522436 86684 ? S 07:09 0:17
/usr/sbin/apache2 -k start
www-data 28568 0.0 0.7 559216 116156 ? S 07:09 0:11
/usr/sbin/apache2 -k start
www-data 28569 0.1 0.5 531404 94140 ? S 07:09 0:14
/usr/sbin/apache2 -k start
www-data 28570 0.1 0.4 519344 74340 ? S 07:09 0:15
/usr/sbin/apache2 -k start
An example of a very similar server with very similar apache configuration
but with less domains (6). The average memory used are 27MB ...
# ls /etc/apache2/sites-enabled/|grep -v ssl |wc
6 6 148
# ps aux|grep apache
www-data 936 0.0 1.4 414692 14272 ? S 10:55 0:00
/usr/sbin/apache2 -k start
www-data 937 0.1 2.1 423736 21900 ? S 10:55 0:00
/usr/sbin/apache2 -k start
www-data 941 0.0 1.0 414328 10244 ? S 10:55 0:00
/usr/sbin/apache2 -k start
www-data 943 0.0 2.8 500268 29376 ? S 10:55 0:00
/usr/sbin/apache2 -k start
root 21633 0.0 3.1 414296 32304 ? Ss May04 1:46
/usr/sbin/apache2 -k start
www-data 28923 0.0 3.1 500432 31840 ? S 06:30 0:00
/usr/sbin/apache2 -k start
www-data 28924 0.0 3.1 500392 32264 ? S 06:30 0:00
/usr/sbin/apache2 -k start
www-data 28925 0.0 3.1 500412 31756 ? S 06:30 0:00
/usr/sbin/apache2 -k start
www-data 28926 0.0 3.2 500324 33124 ? S 06:30 0:00
/usr/sbin/apache2 -k start
www-data 29160 0.0 3.2 500456 33184 ? S 06:41 0:00
/usr/sbin/apache2 -k start
www-data 29612 0.0 3.5 504596 35632 ? S 06:47 0:00
/usr/sbin/apache2 -k start
# apache2 -M
Loaded Modules:
core_module (static)
so_module (static)
watchdog_module (static)
http_module (static)
log_config_module (static)
logio_module (static)
version_module (static)
unixd_module (static)
access_compat_module (shared)
alias_module (shared)
auth_basic_module (shared)
authn_core_module (shared)
authn_file_module (shared)
authz_core_module (shared)
authz_host_module (shared)
authz_user_module (shared)
autoindex_module (shared)
deflate_module (shared)
dir_module (shared)
env_module (shared)
expires_module (shared)
filter_module (shared)
headers_module (shared)
mime_module (shared)
mpm_prefork_module (shared)
negotiation_module (shared)
php7_module (shared)
rewrite_module (shared)
setenvif_module (shared)
socache_shmcb_module (shared)
ssl_module (shared)
status_module (shared)
# cat /etc/issue
Ubuntu 16.04.6 LTS
# apache2 -V
Server version: Apache/2.4.18 (Ubuntu)
Server built: 2019-10-08T13:31:25
Server's Module Magic Number: 20120211:52
Server loaded: APR 1.5.2, APR-UTIL 1.5.4
Compiled using: APR 1.5.2, APR-UTIL 1.5.4
Architecture: 64-bit
Server MPM: prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=256
-D HTTPD_ROOT="/etc/apache2"
-D SUEXEC_BIN="/usr/lib/apache2/suexec"
-D DEFAULT_PIDLOG="/var/run/apache2.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="mime.types"
-D SERVER_CONFIG_FILE="apache2.conf"
Thank's
--
Marc Serra
Organització i Sistemes
--
Manxa
1876, S.L. *
Ctra.
Les Tries, 85. 17800 Olot (Girona)**Tel. 972 27
45 30 Fax 972 27 45 32*
* Manxa Industrial | *Coneix
més aquí
<http://www.manxaindustrial.com>
* Manxa Ferros | *Coneix
més aquí
<http://www.manxaferros.com/>
* Manxa Ferreteria i Parament de la Llar |
*Coneix
més aquí <https://www.manxabricolatge.com>
**
--
El contingut d’aquest correu electrònic i els seus annexos és
estrictament confidencial. En el cas que no siguis el destinatari i hagis
rebut aquest missatge per error, preguem que ho comuniquis al remitent i
procedeixis a la seva eliminació, sense difondre, emmagatzemar o copiar el
seu contingut. Imprimeix aquest correu només si és necessari.
El contenido
de este correo electrónico y sus anexos es estrictamente confidencial. En
el caso de que no seas el destinatario y hayas recibido este mensaje por
error, rogamos lo comuniques al remitente y procedas a su eliminación, sin
difundir, almacenar o copiar su contenido. Imprimir este correo solo si es
necesario.
The content of this email and its attachments is strictly
confidential. If you are not the recipient and you have received this
message by mistake, please notify the sender and proceed to its
elimination, without spreading, storing or copying its content. Print this
email only if necessary.
Le contenu de cet e-mail et de ses pièces jointes
est strictement confidentiel. Dans le cas où vous n'êtes pas le
destinataire et avez reçu ce message par erreur, veuillez en informer
l'expéditeur et procéder à sa suppression, sans diffuser, stocker ou copier
son contenu. Imprimez cet e-mail uniquement si nécessaire.