Vagrant-如何检测windows主机RAM和CPU
我想让我的文件根据主机规格自动设置CPU和RAM 我发现了这个片段:Vagrant-如何检测windows主机RAM和CPU,vagrant,virtualbox,vagrantfile,vagrant-windows,Vagrant,Virtualbox,Vagrantfile,Vagrant Windows,我想让我的文件根据主机规格自动设置CPU和RAM 我发现了这个片段: config.vm.provider "virtualbox" do |v| host = RbConfig::CONFIG['host_os'] # Give VM 1/4 system memory & access to all cpu cores on the host if host =~ /darwin/ cpus = `sysctl -n hw.ncp
config.vm.provider "virtualbox" do |v|
host = RbConfig::CONFIG['host_os']
# Give VM 1/4 system memory & access to all cpu cores on the host
if host =~ /darwin/
cpus = `sysctl -n hw.ncpu`.to_i
# sysctl returns Bytes and we need to convert to MB
mem = `sysctl -n hw.memsize`.to_i / 1024 / 1024 / 4
elsif host =~ /linux/
cpus = `nproc`.to_i
# meminfo shows KB and we need to convert to MB
mem = `grep 'MemTotal' /proc/meminfo | sed -e 's/MemTotal://' -e 's/ kB//'`.to_i / 1024 / 4
else # sorry Windows folks, I can't help you
cpus = 2
mem = 1024
end
v.customize ["modifyvm", :id, "--memory", mem]
v.customize ["modifyvm", :id, "--cpus", cpus]
end
但是,它不支持Windows(而是设置默认值2和1024)
有人知道怎么做吗?它在您下载的脚本中: 对不起,各位,我帮不了你们
else # sorry Windows folks, I can't help you
cpus = 2
mem = 1024
end
因此,您可以更改这些默认值,但不幸的是,windows没有提供易于使用的命令来检索这些信息
现在,如果你想自己做,这应该是可能的,看看wmic
命令,你可以得到很多,只需要很少的解析,你就应该有必要的信息——例如
C:\Users\fhenri>wmic os get freephysicalmemory
FreePhysicalMemory
1564244
C:\Users\fhenri>wmic.exe cpu get NumberOfCores
NumberOfCores
1
您还可以查看
systeminfo
这是非常详细的,并且特定于语言环境,因此可能更难解析我设法找到了它,并将其集成到了一个数据库中
守则:
cpus = `wmic cpu get NumberOfCores`.split("\n")[2].to_i
mem = `wmic OS get TotalVisibleMemorySize`.split("\n")[2].to_i / 1024 /4
要将上述答案统一为一个完整的示例,您的vagrant文件应包含以下配置部分: 请注意
mem\u ratio
和cpu\u exec\u cap
变量,您可以使用这些变量来调整要分配给VM的主机RAM和cpu周期的数量
config.vm.provider "virtualbox" do |v|
mem_ratio = 3/4
cpu_exec_cap = 75
host = RbConfig::CONFIG['host_os']
# Give VM 3/4 system memory & access to all cpu cores on the host
if host =~ /darwin/
cpus = `sysctl -n hw.ncpu`.to_i
# sysctl returns Bytes and we need to convert to MB
mem = `sysctl -n hw.memsize`.to_i / 1024^2 * mem_ratio
elsif host =~ /linux/
cpus = `nproc`.to_i
# meminfo shows KB and we need to convert to MB
mem = `grep 'MemTotal' /proc/meminfo | sed -e 's/MemTotal://' -e 's/ kB//'`.to_i / 1024 * mem_ratio
else # Windows folks
cpus = `wmic cpu get NumberOfCores`.split("\n")[2].to_i
mem = `wmic OS get TotalVisibleMemorySize`.split("\n")[2].to_i / 1024 * mem_ratio
end
puts "Provisioning VM with #{cpus} CPU's (at #{cpu_exec_cap}%) and #{mem/1024} GB RAM."
v.customize ["modifyvm", :id, "--memory", mem]
v.customize ["modifyvm", :id, "--cpus", cpus]
v.customize ["modifyvm", :id, "--cpuexecutioncap", cpu_exec_cap]
end
在我的系统(Windows 10)上,mem=/`wmic OS get TotalVisibleMemorySize/`.split(“\n”)[2]行的值为0
,因此我将mem\u ratio=3/4
改为mem\u ratio=0.75
,并将.round
改为mem=(`wmic OS get TotalVisiblemorySizeMoorySizeSize`.split(“\n”)[2].to_i/1024*内存比)。四舍五入
。现在,它可以在Windows10上运行,但我不确定它对其他操作系统会有什么影响。