■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       956Mi       279Mi        43Mi       110Mi       861Mi       1.0Gi
Swap:          2.0Gi       260Mi       1.7Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql    2951694  0.8 16.1 2336316 325052 ?      Ssl   7月31 114:40 /usr/sbin/mysqld
nginx    2951668  0.0 10.2 274623420 207272 ?    Sl    7月31   4:07 dotnet WebApp.dll
root     2951499  0.0  4.9 140060 99200 ?        S<s   7月31   0:34 /usr/lib/systemd/systemd-journald
_fluentd 2951707  0.1  3.4 212856 70028 ?        Sl    7月31  20:19 /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     2951601  0.2  3.3 1562036 67880 ?       Ssl   7月31  27:29 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd 2951704  0.0  1.5 178728 31792 ?        Sl    7月31   4:56 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root     2951613  0.0  1.4  39508 28748 ?        Ss    7月31   2:18 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
root     2926039  0.0  1.3 223416 27008 ?        SLsl  7月29   1:42 /sbin/multipathd -d -s
ntpsec   2964212  0.0  0.9  85552 19876 ?        SLs   8月01   0:53 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
nginx    2951495  0.0  0.6  40248 12816 ?        S     7月31   0:14 nginx: worker process