http://vpset.com/tag/%E7%94%B2%E9%AA%A8%E6%96%87/ http://vpset.com/21.html 2023-02-04T13:51:55+08:00 前言最近甲骨文针对永久免费的资源出了个新的政策，具体看这里：https://docs.oracle.com/en-us/iaas/Content/FreeTier/freetier_topic-Always_Free_Resources.htm 里面提到了如果计算实例长期空闲，可能会被回收：Reclamation of Idle Compute InstancesIdle Always Free compute instances may be reclaimed by Oracle. Oracle will deem virtual machine and baremetal 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)简单点说就是7天内，如果机器的cpu、内存、带宽使用率低于10%就视为是空闲的计算实例，可能会被回收。。。我有2台免费的arm机器，确实一直放那里没怎么用，但是里面也跑了几个服务，只是这些服务都用不了多少资源，没办法为了机器不被回收，只能想办法把cpu、内存使用率再往上抬一抬。这里介绍个小工具：lookbusy，这是一个linux系统负载生成器，可以根据你的配置来占用cpu、内存等资源。以下是debian11编译安装lookbusy的方法：apt -y update apt -y install curl build-essential curl -L http://www.devin.com/lookbusy/download/lookbusy-1.4.tar.gz -o lookbusy-1.4.tar.gz tar -xzvf lookbusy-1.4.tar.gz cd lookbusy-1.4/ ./configure make make install 新建systemd服务：systemctl edit --full --force lookbusy.service 写入如下配置：[Unit] Description=lookbusy service [Service] Type=simple ExecStart=/usr/local/bin/lookbusy -c 20 -m 5120MB Restart=always RestartSec=10 KillSignal=SIGINT [Install] WantedBy=multi-user.target 参数-c指cpu使用率，-m指内存使用率。可以根据自己的实例配置来适当配置。启动并设置lookbusy开机自启：systemctl enable --now lookbusy.service 检查机器cpu、内存、负载情况，确定超过甲骨文规定的10%即可：top 转自：https://lala.im/8589.html