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其他 - 您如何在Ruby中找到计算机上可用的物理内存？

发布于 2020-03-27 10:29:52

我想知道系统上有多少物理内存可用，不包括任何交换。有没有办法在Ruby中获取此信息？

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提问者
Guillaume Coté
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Rishav Rastogi 2010-10-27 10:37

如果您使用的是Linux，则通常使用“ free”命令查找物理内存，即系统上的RAM详细信息

 输出=％x（免费）

输出将看起来像下面的字符串

" total used free shared buffers cached\nMem: 251308 201500 49808 0 3456 48508\n-/+ buffers/cache: 149536 101772\nSwap: 524284 88612 435672\n"

您可以使用简单的字符串操作（例如，

output.split(" ")[7]将提供总内存 output.split(" ")[8]将提供已用内存 output.split(" ")[9]将提供可用内存

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