Docker Desktop Vmmem内存占用过高问题解决方案

Docker Desktop Vmmem内存占用过高问题解决方案

内存占用过高原因

主要原因是docker desktop的实现及基于wsl(Windows子系统),相当于在Windows上同时开了一个虚拟机,如果不对wsl的资源进行限制,它将会极大的获取系统资源.所以我们只需要对wsl的最大资源进行限制即可

解决方案

1. 修改wsl配置文件官方地址具体配置:# Settings apply across all Linux distros running on WSL 2[wsl2]# Limits VM memory to use no more than 4 GB, this can be set as whole numbers using GB or MBmemory=4GB # Sets the VM to use two virtual processorsprocessors=2# Specify a custom Linux kernel to use with your installed distros. The default kernel used can be found at https://github.com/microsoft/WSL2-Linux-Kernelkernel=C:\\temp\\myCustomKernel# Sets additional kernel parameters, in this case enabling older Linux base images such as Centos 6kernelCommandLine =vsyscall=emulate# Sets amount of swap storage space to 8GB, default is 25% of available RAMswap=8GB# Sets swapfile path location, default is %USERPROFILE%\AppData\Local\Temp\swap.vhdxswapfile=C:\\temp\\wsl-swap.vhdx# Disable page reporting so WSL retains all allocated memory claimed from Windows and releases none back when freepageReporting=false# Turn off default connection to bind WSL 2 localhost to Windows localhostlocalhostforwarding=true# Disables nested virtualizationnestedVirtualization=false# Turns on output console showing contents of dmesg when opening a WSL 2 distro for debuggingdebugConsole=true
2. 在用户目录创建个.wslconfig文件,即C:\Users\<UserName>\.wslconfig
3. 创建完成后将配置文件内容粘贴进去[wsl2]#配置wsl的核心数processors=2#配置wsl的内存最大值memory=512MB#配置交换内存大小,默认是电脑内存的1/4swap=8GB#关闭默认连接以将 WSL 2 本地主机绑定到 Windows 本地主机localhostForwarding=true#设置临时文件位置, 默认 %USERPROFILE%\AppData\Local\Temp\swap.vhdxswapfile=D:\\temp\\wsl-swap.vhdx
4. 保存后以管理员打开powershell,执行如下语句关闭wsl:wsl --shutdown
5. 重启docker desktop即可

后续问题(缺点)

如果内存设置的太小了,后续可能会出现docker desktop 运行一段时间退出,或者容器会突然停止工作

所以我们的

memory=512MB

要根据自己启动的容器所占内存大小稍大一点即可,但是如果是后续需要增加容器需要自己手动再次扩大

memory