泊坞窗在哪个单元上运行“-内存”？选择期望？ [英] What unit does the docker run "--memory" option expect?

问题描述

我想将Docker容器的内存限制为1 GB。根据文档，我们可以使用-memory 选项指定所需的内存限制：

I'd like to constrain the memory of a Docker container to 1 GB. According to the documentation, we can specify the desired memory limit using the --memory option:

$ docker run --memory <size> ...

但是，文档 不描述页面上任意位置的参数格式或单位：

-内存，-m         内存限制

--memory , -m           Memory limit

我应该向-内存和其他相关单位提供什么单位-内存保留和-内存交换之类的选项？只是字节？

What units should I supply to --memory and other related options like --memory-reservation and --memory-swap? Just bytes?

推荐答案

我是RTFM的经典案例。 -内存选项支持单位后缀，因此我们不需要计算确切的字节数：

Classic case of RTFM on my part. The --memory option supports a unit suffix so we don't need to calculate the exact byte number:

 -m, --memory=""
      Memory limit (format: <number>[<unit>], where unit = b, k, m or g)

   Allows you to constrain the memory available to a container. If the
   host supports swap memory, then the -m memory setting can be larger
   than physical RAM. If a limit of 0 is specified (not using -m), the
   container's memory is not limited. The actual limit may be rounded up
   to a multiple of the operating system's page size (the value would be
   very large, that's millions of trillions).

因此，启动一个内存限制为1 GB的容器问题中所述，这两个命令都将起作用：

So, to start a container with a 1 GB memory limit as described in the question, both of these commands will work:

$ docker run --memory 1g ... 
$ docker run --memory 1073741824 ...

-内存-保留和-内存交换选项也支持此约定。

The --memory-reservation and --memory-swap options also support this convention.

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