On 8/2/21 9:40 PM, Mark Johnston wrote:
Cyril has written a few patches for racct, including one which includes
POSIX shared memory objects in rctl's "nshm" and "shmsize" resources,
which currently only apply to SysV shm objects:
https://reviews.freebsd.org/D30775
We plan to get them committed in the next couple of weeks.

Hello,

I haven't looked at it for a bit, but the last time I tried to use sysutils/jail_exporter to get graphs for jail resource usage the graphs for Postgres jails were hilariously wrong, which I believe I tracked down to shared memory being counted more than once.

I gave up trying to figure out how to fix it and just lived with Grafana telling me a postgres jail on a 128gb jailhost used 900gb of memory.

But it sounds like the above might fix this?

Thanks!

Best regards,

Thomas Steen Rasmussen


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