■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       949Mi       114Mi        39Mi       129Mi       1.0Gi       1.0Gi
Swap:          2.0Gi       306Mi       1.7Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql    1168482  0.8 15.4 2316972 311512 ?      Ssl   3月01  81:39 /usr/sbin/mysqld
nginx    1168570  0.0 11.5 274656092 232784 ?    Sl    3月01   3:14 dotnet WebApp.dll
root      865678  0.0  5.8 165252 117232 ?       S<s   2月05   1:56 /usr/lib/systemd/systemd-journald
root     1013668  0.2  3.2 1497820 65612 ?       Ssl   2月18  55:09 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd 1168531  0.1  2.8 208764 58100 ?        Sl    3月01  14:14 /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 603892 43532 ?        Ssl   3月05   0:11 /usr/libexec/fwupd/fwupd
_fluentd 1168527  0.0  1.5 178732 32000 ?        Sl    3月01   3:32 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root     1168446  0.0  1.3 223416 27008 ?        SLsl  3月01   0:59 /sbin/multipathd -d -s
ntpsec   1168438  0.0  0.9  85676 20004 ?        SLs   3月01   0:40 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
root     1168508  0.0  0.6  39500 13520 ?        Ss    3月01   1:42 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf