■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       954Mi       279Mi        34Mi       142Mi       822Mi       1.0Gi
Swap:          2.0Gi       312Mi       1.7Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql    1168482  0.8 16.5 2321100 333272 ?      Ssl   3月01 147:32 /usr/sbin/mysqld
nginx    1322642  0.0 12.8 274663320 259660 ?    Sl    3月12   0:29 dotnet WebApp.dll
root      865678  0.0  5.0 144832 101868 ?       S<s   2月05   2:18 /usr/lib/systemd/systemd-journald
root     1299515  0.2  3.3 1504968 67656 ?       Ssl   3月10   8:46 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd 1168531  0.1  2.7 208764 55672 ?        Sl    3月01  26:27 /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
_fluentd 1168527  0.0  1.5 178732 31644 ?        Sl    3月01   6:26 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root     1322618  0.0  1.4  39500 29008 ?        Ss    3月12   0:11 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
root     1168446  0.0  1.3 223416 27008 ?        SLsl  3月01   1:47 /sbin/multipathd -d -s
ntpsec   1168438  0.0  0.9  85676 20004 ?        SLs   3月01   1:14 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
root     1239122  0.0  0.6 468844 12544 ?        Ssl   3月05   0:16 /usr/libexec/udisks2/udisksd