■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       916Mi       590Mi        25Mi        45Mi       597Mi       1.0Gi
Swap:          2.0Gi          0B       2.0Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql        938  0.7 22.0 2313824 444852 ?      Ssl  15:23   0:26 /usr/sbin/mysqld
nginx       1078  0.1  7.2 274413340 145436 ?    Sl   15:23   0:03 dotnet WebApp.dll
root         777  0.1  4.1 1569228 83292 ?       Ssl  15:23   0:06 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd    1117  0.1  3.4 185200 69804 ?        Sl   15:23   0:04 /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    1110  0.0  2.6 174948 52640 ?        Sl   15:23   0:01 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root        1465  0.1  2.4 557552 48860 ?        Ssl  16:08   0:01 /usr/libexec/fwupd/fwupd
root         803  0.0  1.4  39516 29044 ?        Ss   15:23   0:00 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
root         367  0.0  1.3 288960 27300 ?        SLsl 15:23   0:00 /sbin/multipathd -d -s
root         870  0.0  1.1 110772 23560 ?        Ssl  15:23   0:00 /usr/bin/python3 /usr/share/unattended-upgrades/unattended-upgrade-shutdown --wait-for-signal
ntpsec       793  0.0  0.9  85556 20132 ?        SLs  15:23   0:00 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec