■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       909Mi       227Mi        37Mi       122Mi       941Mi       1.0Gi
Swap:          2.0Gi       864Mi       1.2Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
nginx     211486  0.0 14.5 274787008 293872 ?    Sl   10月24   7:38 dotnet WebApp.dll
mysql        944  0.8 12.4 2361864 251368 ?      Ssl  10月04 405:00 /usr/sbin/mysqld
root         311  0.0  2.9 115984 60164 ?        S<s  10月04   1:53 /usr/lib/systemd/systemd-journald
root         776  0.2  2.5 1466488 52016 ?       Ssl  10月04 101:01 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd    1165  0.1  2.3 213048 47780 ?        Sl   10月04  71:27 /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
root         363  0.0  1.3 288952 26880 ?        SLsl 10月04   4:55 /sbin/multipathd -d -s
ntpsec       792  0.0  0.9  85680 20064 ?        SLs  10月04   3:20 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
_fluentd    1162  0.0  0.6 178792 13276 ?        Sl   10月04  16:47 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root      143213  0.0  0.6  39496 13240 ?        Ss   10月17   5:26 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
root         851  0.0  0.6 110756 13056 ?        Ssl  10月04   0:00 /usr/bin/python3 /usr/share/unattended-upgrades/unattended-upgrade-shutdown --wait-for-signal