I have a new server that has 4 times the amount of ram I've ever had in a server and there is way too much swap being used. Half the ram was allocated to MariaDB, but this is what I see in a top command output:
The two main processes on this server are mysql and redis. But that doesn't explain why there is 128G of swap being used?
Code:
last pid: 53784; load averages: 1.96, 2.07, 2.12 up 13+23:27:59 20:42:23
93 processes: 2 running, 91 sleeping
CPU: 2.3% user, 0.0% nice, 1.0% system, 0.0% interrupt, 96.7% idle
Mem: 54G Active, 49G Inact, 75G Laundry, 186G Wired, 9431M Free
ARC: 171G Total, 44G MFU, 126G MRU, 42M Anon, 762M Header, 173M Other
158G Compressed, 204G Uncompressed, 1.29:1 Ratio
Swap: 128G Total, 104G Used, 24G Free, 80% Inuse, 480K In
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
27046 mysql 420 21 0 206G 176G CPU3 3 261.8H 118.96% mysqld
27578 redis 4 29 0 2225M 2172M kqread 32 26.8H 15.48% redis-server
53784 root 1 20 0 13M 2984K CPU44 44 0:00 0.08% top
52987 www 1 20 0 22M 11M select 13 0:11 0.00% lighttpd
52662 root 1 20 0 20M 6428K select 25 0:00 0.00% sshd
3954 root 1 20 0 14M 344K select 45 4:10 0.00% screen
3673 root 1 20 0 11M 840K select 25 0:15 0.00% syslogd
3880 root 1 20 0 17M 1204K select 17 0:12 0.00% sendmail
53033 www 1 24 0 304M 33M accept 47 0:08 0.00% php-cgi
53035 www 1 24 0 277M 32M accept 33 0:07 0.00% php-cgi
53037 www 1 20 0 277M 32M accept 43 0:05 0.00% php-cgi
53039 www 1 20 0 277M 32M accept 5 0:05 0.00% php-cgi
3887 root 1 20 0 11M 476K nanslp 16 0:04 0.00% cron
52992 www 1 21 0 274M 32M accept 43 0:03 0.00% php-cgi
52994 www 1 21 0 277M 32M accept 23 0:03 0.00% php-cgi
53047 www 1 24 0 274M 31M accept 46 0:03 0.00% php-cgi
53043 www 1 23 0 277M 32M accept 44 0:02 0.00% php-cgi
53041 www 1 20 0 277M 32M accept 44 0:02 0.00% php-cgi
53492 www 1 20 0 277M 32M accept 40 0:02 0.00% php-cgi
52993 www 1 20 0 277M 32M accept 47 0:02 0.00% php-cgi
52995 www 1 21 0 274M 32M accept 39 0:02 0.00% php-cgi
53498 www 1 39 0 277M 32M accept 42 0:02 0.00% php-cgi
53045 www 1 20 0 277M 32M accept 38 0:02 0.00% php-cgi
53485 www 1 23 0 274M 32M accept 25 0:02 0.00% php-cgi
3955 root 1 20 0 13M 0 pause 41 0:02 0.00% <csh>
53482 www 1 30 0 277M 33M accept 12 0:01 0.00% php-cgi
52996 www 1 20 0 274M 31M accept 31 0:01 0.00% php-cgi
53496 www 1 39 0 277M 32M accept 27 0:01 0.00% php-cgi
52997 www 1 21 0 274M 31M accept 47 0:01 0.00% php-cgi
53495 www 1 37 0 277M 33M accept 41 0:01 0.00% php-cgi
53497 www 1 47 0 277M 32M accept 15 0:01 0.00% php-cgi
52998 www 1 20 0 277M 32M accept 39 0:00 0.00% php-cgi
3596 root 1 20 0 10M 996K select 9 0:00 0.00% devd