■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       938Mi       279Mi        36Mi       145Mi       837Mi       1.0Gi
Swap:          2.0Gi       296Mi       1.7Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql    1168482  0.8 16.9 2321100 341336 ?      Ssl   3月01 123:07 /usr/sbin/mysqld
nginx    1299739  0.0 11.0 274629164 223180 ?    Sl    3月10   0:31 dotnet WebApp.dll
root      865678  0.0  4.2 128556 86508 ?        S<s   2月05   2:11 /usr/lib/systemd/systemd-journald
root     1299515  0.2  3.7 1504968 76360 ?       Ssl   3月10   2:36 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd 1168531  0.1  2.8 208764 58376 ?        Sl    3月01  21:57 /opt/fluent/bin/ruby -Eascii-8bit:ascii-8bit /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid --under-supervisor
root     1244725  0.0  2.1 621764 43336 ?        Ssl   3月05   0:29 /usr/libexec/fwupd/fwupd
_fluentd 1168527  0.0  1.5 178732 31900 ?        Sl    3月01   5:22 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root     1299738  0.0  1.4  39500 28996 ?        Ss    3月10   0:13 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
root     1168446  0.0  1.3 223416 27008 ?        SLsl  3月01   1:29 /sbin/multipathd -d -s
ntpsec   1168438  0.0  0.9  85676 20004 ?        SLs   3月01   1:02 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec