■free -w -h

               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       1.1Gi       144Mi        33Mi       114Mi       840Mi       880Mi
Swap:          2.0Gi       311Mi       1.7Gi

■ps aux --sort -%mem

USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql    2506832  0.8 17.6 2355764 354848 ?      Ssl   6月23  59:54 /usr/sbin/mysqld
nginx    2390639  0.0 14.0 274685288 283776 ?    Sl    6月12   7:13 dotnet WebApp.dll
root     2380155  0.0  4.8 170940 97280 ?        S<s   6月11   0:50 /usr/lib/systemd/systemd-journald
_fluentd 2506948  0.1  3.6 208764 73192 ?        Sl    6月23  10:11 /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     2380278  0.2  3.1 1563260 62732 ?       Ssl   6月11  51:05 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
nginx    2513977  0.0  1.9  67064 39820 ?        S     6月24   0:03 nginx: worker process
nginx    2513978  0.0  1.4  56276 29084 ?        S     6月24   0:03 nginx: worker process
root     2356603  0.0  1.3 223416 26880 ?        SLsl  6月09   2:55 /sbin/multipathd -d -s
_fluentd 2506945  0.0  1.1 178796 23696 ?        Sl    6月23   2:33 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
nginx    2513976  0.0  1.0  48380 21288 ?        S     6月24   0:12 nginx: worker process