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docker container free command is what, for this problem, this article details the corresponding analysis and solution, hoping to help more want to solve this problem of small partners to find a simpler and easier way.

What is docker container free command? Due to the lack of isolation of docker itself, proc information on the Host can be seen in the proc file system inside the container. The Linux system itself comes with commands such as top and free, which calculate resource usage by reading files under proc.

Using top, free, etc. commands in docker containers is still a fairly common requirement.

When we check the free memory of our machine with the free command, we sometimes find that the value of free is very small. This is mainly because there is such an idea in Linux system that memory is not used in vain, so it caches and buffers some data as much as possible to facilitate the next use. But in fact, these memories can be used immediately.

Linux has made a lot of careful design in order to improve disk and memory access efficiency. In addition to caching dentries (used for VFS to speed up the conversion of file path names to inode), it also adopts two main caching methods: Buffer Cache and Page Cache. The former is for reading and writing disk blocks, while the latter is for reading and writing file inode. These caches can effectively shorten the time of I/O system calls.

free command

-b/-k/-m: Displays memory usage in bytes/KB/MB. - o: Do not show buffer adjustment columns. - s: Continue to observe memory usage-t Display memory sum column About docker container free command is what the answer to the question is shared here, I hope the above content can be of some help to everyone, if you still have a lot of doubts not solved, you can pay attention to the industry information channel to learn more related knowledge.

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