Re: [PATCH] meminfo: show /proc/meminfo base on container's memcg
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On 05/31/2012 12:51 PM, Kamezawa Hiroyuki wrote:
One think to keep in mind: A file in memcg does not need to follow the same format of /proc/meminfo so we can bind mount. We should be able to reconstruct that in userspace based on information available from the kernel. You can even collect that from multiple locations, and *then* you bind mount.I'm sorry I couldn't fully understand. Could you explain more ? Do you mean - bind mount memory cgroup directory into the container for exporting information - Some user-space apps, FUSE-procfs or some, can provide enough information
Implementation details aside, the idea is to have something like FUSE to hook the read(), and then construct the information it needs to present in the proper format.
Alternatively, for files that doesn't change a lot, you can create a file /container-storage-area/my_copy_of_meminfo at container creation, and bind mount *that* file.
There is no reason to bind mount a kernel-provided file directly. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>