[lxc-users] Container Memory Monitoring
serge.hallyn at ubuntu.com
Thu Apr 3 17:27:55 UTC 2014
Quoting Christoph Mitasch (cmitasch at thomas-krenn.com):
> I've tested the Nagios/Icinga Plugin check_lxc_memory.py.
> I found out that the cgroup file memory.usage_in_bytes also takes the used page cache into account.
> Also the memory.failcnt file reports a failcnt as soon as the sum of RSS and page cache memory exhausts the memory.limit_in_bytes.
> Therefore the failcnt doesn't make too much sense for me at the moment.
> What is the recommended way to monitor memory usage of a container?
> memory.stat would give information about used page_cache, so that could be a possibility.
> Any news on /proc FUSE/virtualization?
That probably won't happen. Someone was going to start writing a
library which could be used to get this information "from all the
right sources" so that users could all use the common library instead
of re-inventing the wheel.
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