Hi, Can someone help find unnecessary processes that are running right now? Here's the output of free -t -m Code: [root@linux ~]# free -t -m total used free shared buffers cached Mem: 256 176 79 0 0 68 -/+ buffers/cache: 108 147 Swap: 255 0 255 Total: 512 176 335 [root@linux ~]# Also Running Processes in webmin Code: Display : PID User Memory CPU Search Run.. Real memory: 256.16 MB total / 174.99 MB free Swap space: 255.99 MB total / 255.99 MB free Process ID Owner Size Command 2180 mysql 121024 kB /usr/libexec/mysqld --defaults-file=/etc/my.cnf --basedir=/usr --datadir=/var/li ... 2066 nscd 107040 kB /usr/sbin/nscd 2037 named 38724 kB /usr/sbin/named -u named -c /etc/named.caching-nameserver.conf 2414 apache 32924 kB /usr/sbin/httpd 2304 root 30064 kB /usr/sbin/httpd 2415 apache 30064 kB /usr/sbin/httpd 2416 apache 30064 kB /usr/sbin/httpd 2417 apache 30064 kB /usr/sbin/httpd 2418 apache 30064 kB /usr/sbin/httpd 2419 apache 30064 kB /usr/sbin/httpd 2420 apache 30064 kB /usr/sbin/httpd 2424 apache 30064 kB /usr/sbin/httpd 2370 root 28824 kB ./sc_serv sc_serv_narodna.conf 2371 root 28820 kB ./sc_serv sc_serv_izvorna.conf 2367 root 21544 kB ./sc_trans_linux sc_trans_izvorna.conf 2368 root 20512 kB ./sc_trans_linux sc_trans_narodna.conf 2228 sqlgrey 14768 kB /usr/bin/perl -w /usr/sbin/sqlgrey -d 2491 root 12060 kB /usr/libexec/webmin/proc/index_size.cgi 2435 root 8640 kB sshd: root@pts/0 2372 smmsp 7936 kB /usr/sbin/sendmail -FCronDaemon -i -odi -oem -oi -t 2381 smmsp 7936 kB /usr/sbin/sendmail -FCronDaemon -i -odi -oem -oi -t 2384 smmsp 7936 kB /usr/sbin/sendmail -FCronDaemon -i -odi -oem -oi -t 2385 smmsp 7936 kB /usr/sbin/sendmail -FCronDaemon -i -odi -oem -oi -t 2453 root 7588 kB /usr/bin/perl /usr/libexec/webmin/miniserv.pl /etc/webmin/miniserv.conf 2215 root 7076 kB dovecot-auth 2290 postfix 6748 kB qmgr -l -t fifo -u 2289 postfix 6688 kB pickup -l -t fifo -u 2283 root 6672 kB /usr/libexec/postfix/master 2293 nobody 5604 kB proftpd: (accepting connections) 2085 root 5348 kB /usr/sbin/sshd 2402 root 4980 kB /usr/sbin/saslauthd -m /var/run/saslauthd -a pam 2403 root 4980 kB /usr/sbin/saslauthd -m /var/run/saslauthd -a pam 2404 root 4980 kB /usr/sbin/saslauthd -m /var/run/saslauthd -a pam 2405 root 4980 kB /usr/sbin/saslauthd -m /var/run/saslauthd -a pam 2406 root 4980 kB /usr/sbin/saslauthd -m /var/run/saslauthd -a pam 2225 dovecot 4364 kB imap-login 2227 dovecot 4364 kB imap-login 2226 dovecot 4360 kB imap-login 2222 dovecot 4356 kB pop3-login 2223 dovecot 4356 kB pop3-login 2224 dovecot 4356 kB pop3-login 2314 root 4140 kB crond 2315 root 4140 kB crond 2316 root 4140 kB crond 2317 root 4140 kB crond Since I'm not using nscd (name service cache daemon) can I turn it off ? its using 107040 kB Thanks!
output of top with SHIFT + M Code: top - 23:07:34 up 3 min, 1 user, load average: 0.04, 0.07, 0.03 Tasks: 99 total, 2 running, 93 sleeping, 0 stopped, 4 zombie Cpu(s): 2.5%us, 0.0%sy, 0.0%ni, 97.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 262312k total, 147848k used, 114464k free, 48k buffers Swap: 262136k total, 0k used, 262136k free, 61224k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2175 mysql 15 0 119m 19m 4340 S 0 7.7 0:00.11 mysqld 2299 root 18 0 30064 10m 5216 S 0 4.0 0:00.11 httpd 2424 apache 15 0 31016 9448 3056 S 0 3.6 0:00.03 httpd 2428 apache 15 0 31016 9444 3036 S 0 3.6 0:00.03 httpd 2429 apache 15 0 31016 9440 3056 S 0 3.6 0:00.03 httpd 2422 apache 15 0 30992 9424 3040 S 0 3.6 0:00.05 httpd 2423 apache 15 0 30992 9424 3040 S 0 3.6 0:00.05 httpd 2425 apache 15 0 31016 9420 3008 S 0 3.6 0:00.04 httpd 2426 apache 15 0 31016 9400 2988 S 0 3.6 0:00.03 httpd 2427 apache 15 0 31016 9376 2988 S 0 3.6 0:00.03 httpd 2223 sqlgrey 16 0 14768 9044 2552 S 0 3.4 0:00.02 sqlgrey 2438 root 15 0 7592 5080 1524 S 0 1.9 0:00.00 miniserv.pl 2365 root 18 0 21544 3508 808 S 3 1.3 0:08.00 sc_trans_linux 2370 smmsp 18 0 7928 2760 1856 S 0 1.1 0:00.02 sendmail 2371 smmsp 18 0 7928 2760 1856 S 0 1.1 0:00.01 sendmail 2032 named 18 0 38728 2712 1764 S 0 1.0 0:00.01 named 2379 smmsp 19 0 7928 2656 1820 S 0 1.0 0:00.02 sendmail 2380 smmsp 19 0 7928 2656 1820 S 0 1.0 0:00.02 sendmail 2364 root 18 0 20512 2424 808 S 2 0.9 0:08.58 sc_trans_linux 2447 root 15 0 8780 2400 1924 R 0 0.9 0:00.02 sshd 2495 root 15 0 8640 2364 1912 S 0 0.9 0:00.03 sshd 2366 root 18 0 28824 1916 572 S 0 0.7 0:00.03 sc_serv 2363 root 18 0 28820 1912 572 S 0 0.7 0:00.04 sc_serv 2278 root 19 0 6668 1656 1320 S 0 0.6 0:00.01 master 2220 dovecot 15 0 4360 1632 1364 S 0 0.6 0:00.00 imap-login 2221 dovecot 15 0 4364 1632 1364 S 0 0.6 0:00.00 imap-login 2222 dovecot 15 0 4360 1628 1364 S 0 0.6 0:00.00 imap-login 2217 dovecot 15 0 4356 1624 1356 S 0 0.6 0:00.03 pop3-login 2219 dovecot 15 0 4356 1624 1356 S 0 0.6 0:00.01 pop3-login 2209 root 15 0 7076 1620 1192 S 0 0.6 0:00.00 dovecot-auth 2218 dovecot 15 0 4352 1620 1356 S 0 0.6 0:00.01 pop3-login 2287 postfix 20 0 6744 1596 1280 S 0 0.6 0:00.00 qmgr 2286 postfix 18 0 6692 1564 1252 S 0 0.6 0:00.00 pickup 2309 root 18 0 4136 1424 796 S 0 0.5 0:00.00 crond 2310 root 18 0 4136 1424 796 S 0 0.5 0:00.02 crond 2311 root 18 0 4136 1424 796 S 0 0.5 0:00.00 crond 2312 root 18 0 4136 1424 796 S 0 0.5 0:00.00 crond 2410 avahi 15 0 2920 1304 1140 S 0 0.5 0:00.00 avahi-daemon 2459 root 16 0 2576 1300 1060 S 0 0.5 0:00.03 bash 2288 nobody 15 0 5604 1156 556 S 0 0.4 0:00.00 proftpd 2142 root 21 0 2576 1104 952 S 0 0.4 0:00.01 mysqld_safe 2507 root 15 0 4692 1056 812 S 0 0.4 0:00.01 sftp-server 2494 root 15 0 2364 1052 808 R 0 0.4 0:00.06 top 2385 xfs 19 0 3588 1044 636 S 0 0.4 0:00.01 xfs 2061 nscd 18 0 104m 1012 764 S 0 0.4 0:00.00 nscd 2307 root 18 0 3348 992 468 S 0 0.4 0:00.00 crond 2352 root 19 0 2364 960 844 S 0 0.4 0:00.01 bash 2353 root 18 0 2364 960 844 S 0 0.4 0:00.00 bash 2356 root 19 0 2364 960 844 S 0 0.4 0:00.00 bash 2360 root 18 0 2360 956 844 S 0 0.4 0:00.01 bash 2080 root 15 0 5352 936 628 S 0 0.4 0:00.00 sshd 2052 dbus 15 0 2712 852 688 S 0 0.3 0:00.00 dbus-daemon 2397 root 25 0 4980 676 428 S 0 0.3 0:00.00 saslauthd 1 root 15 0 2032 656 564 S 0 0.3 0:00.03 init 2009 root 18 0 1696 576 484 S 0 0.2 0:00.00 syslogd 775 root 18 -4 2120 572 368 S 0 0.2 0:00.34 udevd 2208 root 15 0 2004 556 460 S 0 0.2 0:00.00 dovecot 2443 root 18 0 1628 456 392 S 0 0.2 0:00.00 mingetty 2445 root 18 0 1628 456 392 S 0 0.2 0:00.00 mingetty 2446 root 18 0 1628 456 392 S 0 0.2 0:00.00 mingetty [root@linux ~]#
you can only reply to yourself google the services and find out what you dont want to run what your machine does ? what is your necessary processes ? if you want a web tool for this i suggest webmin
It seems like its apache that is causing this. Almost 3.7MB per process. After couple of hours I have only 3MB of free mem left. Code: [root@linux ~]# free -t -m total used free shared buffers cached Mem: 256 253 3 0 0 30 -/+ buffers/cache: 222 33 Swap: 255 96 159 Total: 512 349 162 [root@linux ~]# That causes "my" VPS server to crash. Apache, mysql, ftp and shoutcast that's about it. I already have webmin.
You could try to get more performance out of your Apache: http://www.howtoforge.com/configuring_apache_for_maximum_performance
Thanks for the reply! Without some detailed instruction I'm really lost in this howto. I found some info on the web for MaxRequestsPerChild but then I guess after v1.3 of apache they started using <IfModule worker.c> and <IfModule prefork.c> so for worker I changed from 0 (which means infinite connections) to 100. That did not do anything my memory still goes from ~170MB down to 2MB after some time. I also think I have this part setup wrong, do all virtual sites needs to be listed in /etc/httpd/conf/httpd.conf with this setup ? Code: <VirtualHost *:80> DocumentRoot "/var/www/domain1.com" ServerName www.domain1.com ServerAlias domain1.com ErrorLog /var/log/httpd/domain1_com_error_log CustomLog /var/log/httpd/domain1_com_access_log combined <Directory "/var/www/domain1.com"> allow from all Options -Indexes </Directory> </VirtualHost> and so on with domain2 etc. In the late hours when no users are active in less 10 seconds after loading 2 virtual domain sites my memory went from 40 to 28MB Code: [root@linux ~]# free -t -m total used free shared buffers cached Mem: 256 215 40 0 0 119 -/+ buffers/cache: 95 160 Swap: 255 0 255 Total: 512 215 296 [root@linux ~]# free -t -m total used free shared buffers cached Mem: 256 219 36 0 0 121 -/+ buffers/cache: 98 158 Swap: 255 0 255 Total: 512 219 292 [root@linux ~]# free -t -m total used free shared buffers cached Mem: 256 227 28 0 0 123 -/+ buffers/cache: 103 152 Swap: 255 0 255 Total: 512 227 284 [root@linux ~]#
