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Idle Always Free compute instances may be reclaimed by Oracle. Oracle will deem virtual machine and bare metal compute instances as idle if, during a 7-day period, the following are true:

CPU utilization for the 95th percentile is less than 10%
Network utilization is less than 10%
Memory utilization is less than 10% (applies to A1 shapes only)

Idle Always Free计算实例可能会被 Oracle 回收。

• docker run –cpus=0.2 -d –name busy alpine sh -c “while true; do continue; done”
• /usr/bin/docker stop busy
• crontab -e
• 13 * * * * /usr/bin/docker restart busy
• 11 * * * * /usr/bin/docker stop busy
• crontab -l