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■free -w -h
               total        used        free      shared     buffers       cache   available
Mem:           1.9Gi       1.1Gi       248Mi        40Mi        95Mi       730Mi       864Mi
Swap:          2.0Gi       365Mi       1.6Gi

■ps aux --sort -%mem
USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
nginx      85546  0.0 31.0 274622044 624524 ?    Sl   10月06   0:56 dotnet WebApp.dll
mysql        953  0.7 11.0 2317508 222484 ?      Ssl   9月27 111:27 /usr/sbin/mysqld
root         313  0.0  3.5 128352 71524 ?        S<s   9月27   0:26 /usr/lib/systemd/systemd-journald
root         781  0.1  2.4 1439276 49852 ?       Ssl   9月27  30:34 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
_fluentd    1160  0.1  2.1 207600 43648 ?        Sl    9月27  20:45 /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         364  0.0  1.3 288948 26880 ?        SLsl  9月27   1:28 /sbin/multipathd -d -s
ntpsec       801  0.0  0.9  85676 20068 ?        SLs   9月27   1:00 /usr/sbin/ntpd -p /run/ntpd.pid -c /etc/ntpsec/ntp.conf -g -N -u ntpsec:ntpsec
root         807  0.0  0.9  39612 18328 ?        Ss    9月27   2:39 /usr/bin/python3 /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
_fluentd    1157  0.0  0.7 178784 14372 ?        Sl    9月27   5:09 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
root         863  0.0  0.6 110672 13056 ?        Ssl   9月27   0:00 /usr/bin/python3 /usr/share/unattended-upgrades/unattended-upgrade-shutdown --wait-for-signal